Review the problem statement from Codeforces (link will open a new tab). When you've matched your problem, go to the solutions.
Search on plain tags, ratings, names, and problem text. Example: brute force or binary search
1 2 3 4 5 6 >Solved |
Name |
Tags |
Solutions |
Index |
Contest |
Type |
Points |
Tutorial |
Rating Level |
|---|---|---|---|---|---|---|---|---|---|
| 27273 | Spreadsheet | implementation math | Statement | B | Codeforces Beta Round 1 {1} | PROGRAMMING | 85 | 1700 | |
| 7075 | Center Alignment | implementation strings | Statement | B | Codeforces Beta Round 5 {5} | PROGRAMMING | C, D и E с CBR5 - разбор | 1400 | |
| 2027 | Follow Traffic Rules | implementation math | Statement | D | Codeforces Beta Round 5 {5} | PROGRAMMING | C, D и E с CBR5 - разбор | 2100 | |
| 14659 | Hexadecimal's Numbers | brute force implementation math | Statement | C | Codeforces Beta Round 9 (Div. 2 Only) {9} | PROGRAMMING | Codeforces Beta Round #9 tutorial | 1500 | |
| 16056 | Increasing Sequence | constructive algorithms implementation math | Statement | A | Codeforces Beta Round 11 {11} | PROGRAMMING | 1100 | ||
| 7616 | Fruits | greedy implementation sortings | Statement | C | Codeforces Beta Round 12 (Div 2 Only) {12} | PROGRAMMING | 1400 | ||
| 9977 | Correct Solution? | implementation sortings | Statement | B | Codeforces Beta Round 12 (Div 2 Only) {12} | PROGRAMMING | 1400 | ||
| 9766 | Numbers | implementation math | Statement | A | Codeforces Beta Round 13 {13} | PROGRAMMING | Codeforces Beta Round #13 editorial | 1200 | |
| 3957 | Four Segments | brute force constructive algorithms geometry implementation math | Statement | C | Codeforces Beta Round 14 (Div. 2) {14} | PROGRAMMING | Codeforces Beta Round #14 tutorial | 1800 | |
| 4625 | Cottage Village | implementation sortings | Statement | A | Codeforces Beta Round 15 {15} | PROGRAMMING | Codeforces Beta #15 Tutorial (Incomplete) | 1400 | |
| 991 | Map | data structures implementation sortings | Statement | D | Codeforces Beta Round 15 {15} | PROGRAMMING | Короткий разбор задач CF #15 | 2500 | |
| 21302 | Burglar and Matches | greedy implementation sortings | Statement | B | Codeforces Beta Round 16 (Div. 2 Only) {16} | PROGRAMMING | Codeforces Beta Round #16 Tutorial | 1300 | |
| 1908 | Logging | implementation strings | Statement | D | Codeforces Beta Round 16 (Div. 2 Only) {16} | PROGRAMMING | Codeforces Beta Round #16 Tutorial | 2000 | |
| 1683 | Intersection | implementation math | Statement | B | Codeforces Alpha Round 21 (Codeforces format) {21} | PROGRAMMING | 2300 | ||
| 2338 | Jabber ID | implementation strings | Statement | A | Codeforces Alpha Round 21 (Codeforces format) {21} | PROGRAMMING | 2300 | ||
| 1481 | Sequence of points | geometry implementation math | Statement | C | Codeforces Beta Round 24 {24} | PROGRAMMING | Codeforces Beta Round #24 solutions | 1800 | |
| 23646 | Next Test | implementation sortings | Statement | A | Codeforces Beta Round 27 (Codeforces format, Div. 2) {27} | PROGRAMMING | Solution of ABC @ Round#27 | 1900 | |
| 4834 | Sysadmin Bob | greedy implementation strings | Statement | B | Codeforces Beta Round 31 (Div. 2, Codeforces format) {31} | PROGRAMMING | 1500 | ||
| 4917 | Page Numbers | expression parsing implementation sortings strings | Statement | C | Codeforces Beta Round 34 (Div. 2) {34} | PROGRAMMING | Codeforces Beta Round #34 (Div. 2) Разбор | 1400 | |
| 695 | Collisions | brute force implementation math | Statement | E | Codeforces Beta Round 34 (Div. 2) {34} | PROGRAMMING | Codeforces Beta Round #34 (Div. 2) Разбор | 2100 | |
| 4167 | Chess | brute force implementation math | Statement | B | School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round 38 (ACM-ICPC Rules) {38} | PROGRAMMING | Школьная индивидуальная олимпиада #1 - Codeforces Beta Round #38. (Разбор задачи D) | 1200 | |
| 3708 | Spelling Check | hashing implementation strings | Statement | J | School Team Contest 1 (Winter Computer School 2010/11) {39} | PROGRAMMING | School Team Contest #1 (Winter Computer School 2010/11): Problem K Tutorial | 1600 | |
| 4560 | Find Color | constructive algorithms geometry implementation math | Statement | A | Codeforces Beta Round 39 {40} | PROGRAMMING | codeforces #39 | 1300 | |
| 370 | Berland Square | implementation math | Statement | C | Codeforces Beta Round 39 {40} | PROGRAMMING | codeforces #39 | 2200 | |
| 198296 | Translation | implementation strings | Statement | A | Codeforces Beta Round 40 (Div. 2) {41} | PROGRAMMING | Codeforces Beta Round #40 Mini-Tutorial | 900 | |
| 21204 | Letter | implementation strings | Statement | B | Codeforces Beta Round 42 (Div. 2) {43} | PROGRAMMING | How to solve Codeforces 42(Div.2) | 1200 | |
| 485 | Race | brute force implementation two pointers | Statement | E | Codeforces Beta Round 42 (Div. 2) {43} | PROGRAMMING | Разбор задач A, B, C, D CodeForces Beta Round #42 | 2200 | |
| 7486 | Rock-paper-scissors | implementation schedules | Statement | A | School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round 45 (ACM-ICPC Rules) {48} | PROGRAMMING | 900 | ||
| 3980 | Flea travel | implementation math | Statement | A | Codeforces Beta Round 51 {55} | PROGRAMMING | Round 51, A | 1300 | |
| 8171 | Fortune Telling | implementation number theory | Statement | B | Codeforces Beta Round 55 (Div. 2) {59} | PROGRAMMING | Round 55 (DIV 2) | 1200 | |
| 240747 | Word | implementation strings | Statement | A | Codeforces Beta Round 55 (Div. 2) {59} | PROGRAMMING | Round 55 (DIV 2) | 800 | |
| 4445 | Where Are My Flakes? | implementation two pointers | Statement | A | Codeforces Beta Round 56 {60} | PROGRAMMING | Solutions for Codeforces Beta Round #56 | 1300 | |
| 363 | Inquisition | geometry implementation sortings | Statement | C | Codeforces Beta Round 58 {62} | PROGRAMMING | Codeforces Beta Round #58 tutorial | 2300 | |
| 13791 | Sinking Ship | implementation sortings strings | Statement | A | Codeforces Beta Round 59 (Div. 2) {63} | PROGRAMMING | Разбор задач Codeforces Round #59 (Div. 2) | 1100 | |
| 362 | Table | *special greedy implementation math | Statement | C | Unknown Language Round 1 {64} | PROGRAMMING | 1700 | ||
| 2058 | Harry Potter and Three Spells | implementation math | Statement | A | Codeforces Beta Round 60 {65} | PROGRAMMING | Codeforces Beta Round #60: tutorial | 1800 | |
| 7180 | Petya and Java | implementation strings | Statement | A | Codeforces Beta Round 61 (Div. 2) {66} | PROGRAMMING | Codeforces Beta Round #61 (Div. 2): Editorial | 1400 | |
| 5453 | Irrational problem | implementation number theory | Statement | A | Codeforces Beta Round 62 {68} | PROGRAMMING | Разбор задачи D. CF62 | 1100 | |
| 210359 | Young Physicist | implementation math | Statement | A | Codeforces Beta Round 63 (Div. 2) {69} | PROGRAMMING | Analysis Codeforces Beta Round #63 (Div. 2) | 1100 | |
| 628 | Information Reform | dp implementation trees | Statement | E | Codeforces Beta Round 64 {70} | PROGRAMMING | Analysis Codeforces Beta Round #64 | 2700 | |
| 5486 | Progress Bar | implementation math | Statement | B | Codeforces Beta Round 65 (Div. 2) {71} | PROGRAMMING | Разбор задач Codeforces Beta Round #65 (Div. 2) | 1400 | |
| 3664 | Facetook Priority Wall | expression parsing implementation strings | Statement | B | Codeforces Beta Round 67 (Div. 2) {75} | PROGRAMMING | Codeforces Beta Round #67 (Div. 2) Editorial | 1500 | |
| 2137 | Big Maximum Sum | data structures dp greedy implementation math trees | Statement | D | Codeforces Beta Round 67 (Div. 2) {75} | PROGRAMMING | Codeforces Beta Round #67 (Div. 2) Editorial | 2100 | |
| 1944 | Points | implementation math | Statement | E | All-Ukrainian School Olympiad in Informatics {76} | PROGRAMMING | All-Ukrainian School Olympiad in Informatics: editorial (A,B,C,D,E,F) | 1700 | |
| 15768 | Haiku | implementation strings | Statement | A | Codeforces Beta Round 70 (Div. 2) {78} | PROGRAMMING | Solutions for Codeforces Beta Round #70 (Div. 2) | 1000 | |
| 8098 | Colorful Field | implementation sortings | Statement | B | Codeforces Beta Round 71 {79} | PROGRAMMING | Codeforces Beta Round #71 - разбор (перевод A-D) | 1500 | |
| 2170 | Sequence Formatting | implementation strings | Statement | B | Yandex.Algorithm Open 2011: Qualification 1 {81} | PROGRAMMING | 1700 | ||
| 464 | Pairs | dfs and similar dp dsu graphs implementation trees | Statement | E | Yandex.Algorithm Open 2011: Qualification 1 {81} | PROGRAMMING | 2600 | ||
| 32716 | Double Cola | implementation math | Statement | A | Yandex.Algorithm 2011: Qualification 2 {82} | PROGRAMMING | 1889 | 1100 | |
| 18103 | Powerful array | data structures implementation math two pointers | Statement | D | Yandex.Algorithm 2011: Round 2 {86} | PROGRAMMING | Problemset analysis (Yandex, Round 2) | 2700 | |
| 5914 | Trains | implementation math | Statement | A | Codeforces Beta Round 73 (Div. 1 Only) {87} | PROGRAMMING | CodeForces Beta Round #73 div. 1 analysis (particulary with div. 2) | 1500 | |
| 1277 | Vasya and Types | implementation strings | Statement | B | Codeforces Beta Round 73 (Div. 1 Only) {87} | PROGRAMMING | CodeForces Beta Round #73 div. 1 analysis (particulary with div. 2) | 1900 | |
| 1123 | Beautiful Road | dfs and similar dp dsu graphs implementation sortings trees | Statement | D | Codeforces Beta Round 73 (Div. 1 Only) {87} | PROGRAMMING | CodeForces Beta Round #73 div. 1 analysis (particulary with div. 2) | 2300 | |
| 5810 | African Crossword | implementation strings | Statement | B | Codeforces Beta Round 74 (Div. 2 Only) {90} | PROGRAMMING | Codeforces Beta Round #74 - Short editorial except Div. 1 E | 1100 | |
| 21920 | Chips | implementation math | Statement | A | Codeforces Beta Round 75 (Div. 2 Only) {92} | PROGRAMMING | Analysis Codeforces Beta Round #75 | 800 | |
| 12662 | Restoring Password | implementation strings | Statement | A | Codeforces Beta Round 76 (Div. 2 Only) {94} | PROGRAMMING | Analysis Beta Round #76 (Div. 2-A,B,C) | 1000 | |
| 5479 | Friends | graphs implementation math | Statement | B | Codeforces Beta Round 76 (Div. 2 Only) {94} | PROGRAMMING | Analysis Beta Round #76 (Div. 2-A,B,C) | 1400 | |
| 1881 | Hockey | implementation strings | Statement | A | Codeforces Beta Round 77 (Div. 1 Only) {95} | PROGRAMMING | Codeforces Beta Round #77 - Analysis | 1700 | |
| 202090 | Football | implementation strings | Statement | A | Codeforces Beta Round 77 (Div. 2 Only) {96} | PROGRAMMING | Codeforces Beta Round #77 (Div. 2 Only) Question A - D | 1100 | |
| 164 | Help King | implementation probabilities trees | Statement | B | Codeforces Beta Round 78 (Div. 1 Only) {98} | PROGRAMMING | 2600 | ||
| 3268 | Help Chef Gerasim | implementation sortings | Statement | B | Codeforces Beta Round 78 (Div. 2 Only) {99} | PROGRAMMING | Codeforces Beta Round #78 Div 2 (ABC solutions) | 1400 | |
| 855 | Vectors | implementation math | Statement | C | Codeforces Beta Round 79 (Div. 1 Only) {101} | PROGRAMMING | Codeforces Beta Round 79, editoral | 2100 | |
| 6711 | Testing Pants for Sadness | greedy implementation math | Statement | A | Codeforces Beta Round 80 (Div. 1 Only) {103} | PROGRAMMING | Tutorial | 1200 | |
| 410 | Item World | brute force implementation sortings | Statement | C | Codeforces Beta Round 81 {105} | PROGRAMMING | Tutorial | 2100 | |
| 10507 | Palindromic Times | implementation strings | Statement | A | Codeforces Beta Round 83 (Div. 2 Only) {108} | PROGRAMMING | Editorial: Codeforces Beta Round #83 (Dima) | 1100 | |
| 4634 | Petya and Square | implementation math | Statement | B | Codeforces Beta Round 85 (Div. 2 Only) {112} | PROGRAMMING | Разбор CFBR #85 Div. 1 C, D | 1300 | |
| 302636 | Petya and Strings | implementation strings | Statement | A | Codeforces Beta Round 85 (Div. 2 Only) {112} | PROGRAMMING | Разбор CFBR #85 Div. 1 C, D | 900 | |
| 2629 | Grammar Lessons | implementation strings | Statement | A | Codeforces Beta Round 86 (Div. 1 Only) {113} | PROGRAMMING | Codeforces Beta Round #86 Editorial | 1600 | |
| 190 | Sleeping | combinatorics implementation math | Statement | E | Codeforces Beta Round 86 (Div. 1 Only) {113} | PROGRAMMING | Codeforces Beta Round #86 Editorial | 2600 | |
| 2247 | Elevator | implementation math | Statement | A | Codeforces Beta Round 88 {117} | PROGRAMMING | Codeforces Beta Round #88 (Editorial) | 1400 | |
| 470 | Tree or not Tree | data structures divide and conquer implementation trees | Statement | E | Codeforces Beta Round 88 {117} | PROGRAMMING | Codeforces Beta Round #88 (Editorial) | 2800 | |
| 240705 | String Task | implementation strings | Statement | A | Codeforces Beta Round 89 (Div. 2) {118} | PROGRAMMING | Разбор задач. Codeforces beta round #89. | 1100 | |
| 1149 | Before Exam | constructive algorithms implementation sortings | Statement | B | Codeforces Beta Round 90 {119} | PROGRAMMING | Разбор задачи E Codeforces Beta Round #90 | 1700 | |
| 5763 | Elevator | brute force implementation math | Statement | A | School Regional Team Contest, Saratov, 2011 {120} | PROGRAMMING | Tutorial for school regional team contest of Saratov | 1000 | |
| 4026 | Winnie-the-Pooh and honey | implementation math | Statement | C | School Regional Team Contest, Saratov, 2011 {120} | PROGRAMMING | Tutorial for school regional team contest of Saratov | 1100 | |
| 365 | Lucky Segments | binary search implementation two pointers | Statement | D | Codeforces Beta Round 91 (Div. 1 Only) {121} | PROGRAMMING | Tutorial | 2400 | |
| 4114 | Prime Permutation | implementation number theory strings | Statement | A | Codeforces Beta Round 92 (Div. 1 Only) {123} | PROGRAMMING | Codeforces Beta Round #92 - Analysis | 1600 | |
| 2968 | String | brute force constructive algorithms hashing implementation string suffix structures strings | Statement | B | Codeforces Beta Round 94 (Div. 1 Only) {128} | PROGRAMMING | 3219 | 2200 | |
| 570 | Gnikool Ssalg | *special implementation strings | Statement | B | Unknown Language Round 4 {130} | PROGRAMMING | Unknown Language Round #4: editorial | 1500 | |
| 104768 | cAPS lOCK | implementation strings | Statement | A | Codeforces Beta Round 95 (Div. 2) {131} | PROGRAMMING | Разбор Codeforces Beta Round #95 (Div.2) | 1100 | |
| 7705 | Opposites Attract | implementation math | Statement | B | Codeforces Beta Round 95 (Div. 2) {131} | PROGRAMMING | Some ideas for Round #95 (Div 2) | 1300 | |
| 8347 | Replacement | greedy implementation sortings | Statement | A | Codeforces Beta Round 97 (Div. 1) {135} | PROGRAMMING | Codeforces Beta Round #97: editorial | 1400 | |
| 5384 | Ternary Logic | implementation math | Statement | B | Codeforces Beta Round 97 (Div. 2) {136} | PROGRAMMING | Codeforces Beta Round #97: editorial | 1200 | |
| 1426 | Last Chance | data structures implementation strings | Statement | E | Codeforces Beta Round 98 (Div. 2) {137} | PROGRAMMING | Codeforces Beta Round #98 (Div. 2): Editorial | 2000 | |
| 1474 | Wallpaper | implementation math | Statement | B | Codeforces Beta Round 99 (Div. 2) {139} | PROGRAMMING | Codeforces Beta Round #99: editorial | 1600 | |
| 105723 | Amusing Joke | implementation sortings strings | Statement | A | Codeforces Round 101 (Div. 2) {141} | PROGRAMMING | Codeforces Round #101 (Div. 2) Разбор Задач. | 900 | |
| 5393 | Help Kingdom of Far Far Away 2 | implementation strings | Statement | B | Codeforces Round 102 (Div. 2) {143} | PROGRAMMING | Codeforces Round #102 - Editorial | 1200 | |
| 4288 | Anagram Search | implementation strings | Statement | C | Codeforces Round 103 (Div. 2) {144} | PROGRAMMING | Codeforces Round #103 (Div. 2) Разбор Задач. | 1500 | |
| 4306 | Punctuation | implementation strings | Statement | A | Codeforces Testing Round 4 {147} | PROGRAMMING | 1300 | ||
| 6102 | Escape | implementation math | Statement | B | Codeforces Round 105 (Div. 2) {148} | PROGRAMMING | Codeforces Round #105 (Div. 2): editorial | 1500 | |
| 116791 | Insomnia cure | constructive algorithms implementation math | Statement | A | Codeforces Round 105 (Div. 2) {148} | PROGRAMMING | Codeforces Round #105 (Div. 2): editorial | 900 | |
| 47556 | Business trip | greedy implementation sortings | Statement | A | Codeforces Round 106 (Div. 2) {149} | PROGRAMMING | Codeforces Round #106 (Div. 2) Tutorial | 1100 | |
| 6973 | Phone Numbers | implementation strings | Statement | B | Codeforces Round 107 (Div. 2) {151} | PROGRAMMING | Codeforces Round #107. Tutorial. | 1300 | |
| 99512 | Soft Drinking | implementation math | Statement | A | Codeforces Round 107 (Div. 2) {151} | PROGRAMMING | Codeforces Round #107. Tutorial. | 900 | |
| 3783 | Find Pair | implementation math sortings | Statement | C | Codeforces Round 111 (Div. 2) {160} | PROGRAMMING | Codeforces Round #111 (Div. 2) Разбор Задач | 1700 | |
| 21592 | Rank List | binary search implementation sortings | Statement | A | Codeforces Round 113 (Div. 2) {166} | PROGRAMMING | Codeforces Round #113 (Div. 2) Tutorial | 1200 | |
| 11683 | Wizards and Demonstration | implementation math | Statement | A | Codeforces Round 114 (Div. 2) {168} | PROGRAMMING | Codeforces Round #114 — Tutorial | 1000 | |
| 1321 | Wizards and Minimal Spell | implementation strings | Statement | B | Codeforces Round 114 (Div. 2) {168} | PROGRAMMING | Codeforces Round #114 — Tutorial | 1700 | |
| 1499 | ucyhf | *special brute force implementation number theory | Statement | F | April Fools Day Contest {171} | PROGRAMMING | April Fools Day Contest: editorial | 1700 | |
| 3194 | Pseudorandom Sequence Period | *special implementation number theory | Statement | B | Croc Champ 2012 - Qualification Round {172} | PROGRAMMING | 1800 | ||
| 1264 | Bus | *special implementation sortings | Statement | C | Croc Champ 2012 - Qualification Round {172} | PROGRAMMING | 1900 | ||
| 2572 | Rock-Paper-Scissors | implementation math | Statement | A | Croc Champ 2012 - Round 1 {173} | PROGRAMMING | Croc Champ 2012 — Round 1 — Editorial | 1300 | |
| 1545 | Geometry Horse | greedy implementation sortings two pointers | Statement | C | Codeforces Round 115 {175} | PROGRAMMING | Codeforces Round #115 — editorial A-E | 1600 | |
| 102 | Gnomes of Might and Magic | data structures graphs implementation shortest paths | Statement | F | Codeforces Round 115 {175} | PROGRAMMING | Codeforces Round #115 — editorial A-E | 3000 | |
| 2941 | Mathematical Analysis Rocks! | constructive algorithms implementation math | Statement | F | Codeforces Round 116 (Div. 2, ACM-ICPC Rules) {180} | PROGRAMMING | 1300 | ||
| 9488 | Common Divisors | brute force hashing implementation math strings | Statement | D | Codeforces Round 117 (Div. 2) {182} | PROGRAMMING | Codeforces Round #117 (Div. 2) Разбор Задач | 1400 | |
| 370 | Battlefield | geometry graphs implementation shortest paths | Statement | A | Codeforces Round 117 (Div. 2) {182} | PROGRAMMING | Codeforces Round #117 (Div. 2) Разбор Задач | 2300 | |
| 18786 | Comparing Strings | implementation strings | Statement | A | Codeforces Round 118 (Div. 2) {186} | PROGRAMMING | Editorial for Round #118 | 1200 | |
| 532 | LCM | *special implementation math | Statement | C | Surprise Language Round 6 {188} | PROGRAMMING | Surprise Language Round #6: editorial | 1400 | |
| 11091 | Exams | implementation math | Statement | A | Codeforces Round 122 (Div. 2) {194} | PROGRAMMING | Editoral Codeforces Round #122 | 1000 | |
| 5559 | After Training | data structures implementation math | Statement | B | Codeforces Round 123 (Div. 2) {195} | PROGRAMMING | Codeforces Round #123 (Div. 2) Разбор Задач | 1300 | |
| 3358 | About Bacteria | implementation math | Statement | A | Codeforces Round 125 (Div. 1) {198} | PROGRAMMING | Solutions for Codeforces Round #125 | 1700 | |
| 31109 | Hexadecimal's theorem | brute force constructive algorithms implementation number theory | Statement | A | Codeforces Round 125 (Div. 2) {199} | PROGRAMMING | Solutions for Codeforces Round #125 | 1000 | |
| 374 | Tractor College | implementation math number theory ternary search | Statement | E | Codeforces Round 126 (Div. 2) {200} | PROGRAMMING | Editorial of Codeforces Round #126 (Div. 2) | 2200 | |
| 155918 | Drinks | implementation math | Statement | B | Codeforces Round 126 (Div. 2) {200} | PROGRAMMING | Editorial of Codeforces Round #126 (Div. 2) | 700 | |
| 20300 | LLPS | binary search bitmasks brute force greedy implementation strings | Statement | A | Codeforces Round 127 (Div. 2) {202} | PROGRAMMING | 900 | ||
| 1523 | Hit Ball | geometry implementation math | Statement | D | Codeforces Round 128 (Div. 2) {203} | PROGRAMMING | 1700 | ||
| 1734 | Little Elephant and Strings | data structures implementation string suffix structures two pointers | Statement | E | Codeforces Round 129 (Div. 1) {204} | PROGRAMMING | Tutorial | 2800 | |
| 5349 | Tiling with Hexagons | implementation math | Statement | A | Codeforces Round 133 (Div. 2) {216} | PROGRAMMING | Editorial for Codeforces Round #133 | 1300 | |
| 33330 | k-String | implementation strings | Statement | A | Codeforces Round 135 (Div. 2) {219} | PROGRAMMING | User editorial for Codeforces Round #135 (Div. 2) | 1100 | |
| 13442 | Little Elephant and Problem | implementation sortings | Statement | A | Codeforces Round 136 (Div. 1) {220} | PROGRAMMING | Codeforces Round #136 — Editorial | 1400 | |
| 17072 | Little Elephant and Function | implementation math | Statement | A | Codeforces Round 136 (Div. 2) {221} | PROGRAMMING | Codeforces Round #136 — Editorial | 1000 | |
| 3109 | Reducing Fractions | implementation math number theory sortings | Statement | C | Codeforces Round 137 (Div. 2) {222} | PROGRAMMING | Разбор задач Codeforces Round #137 (Div. 2) | 2000 | |
| 8225 | Array | bitmasks implementation two pointers | Statement | B | Codeforces Round 138 (Div. 2) {224} | PROGRAMMING | Tutorial | 1500 | |
| 1053 | Anniversary | data structures implementation math matrices number theory | Statement | C | Codeforces Round 140 (Div. 1) {226} | PROGRAMMING | Codeforces Round #140 Editorial | 2100 | |
| 101594 | T-primes | binary search implementation math number theory | Statement | B | Codeforces Round 142 (Div. 2) {230} | PROGRAMMING | Codeforces Round #142 Problem Analysis | 1300 | |
| 50445 | Perfect Permutation | implementation math | Statement | A | Codeforces Round 144 (Div. 2) {233} | PROGRAMMING | Editorial for Codeforces Round #144 | 800 | |
| 995 | Number Challenge | combinatorics dp implementation math number theory | Statement | E | Codeforces Round 146 (Div. 1) {235} | PROGRAMMING | Codeforces Round #146 Tutorial | 2600 | |
| 17709 | Easy Number Challenge | implementation number theory | Statement | B | Codeforces Round 146 (Div. 2) {236} | PROGRAMMING | Codeforces Round #146 Tutorial | 1300 | |
| 297352 | Boy or Girl | brute force implementation strings | Statement | A | Codeforces Round 146 (Div. 2) {236} | PROGRAMMING | Codeforces Round #146 Tutorial | 800 | |
| 2388 | Young Table | implementation sortings | Statement | B | Codeforces Round 147 (Div. 2) {237} | PROGRAMMING | Codeforces Round #147 (Div. 2) Разбор Задач | 1500 | |
| 20966 | Two Bags of Potatoes | greedy implementation math | Statement | A | Codeforces Round 148 (Div. 2) {239} | PROGRAMMING | Editorial for Codeforces Round #148 | 1200 | |
| 17586 | Big Segment | implementation sortings | Statement | B | Codeforces Round 149 (Div. 2) {242} | PROGRAMMING | Codeforces Round #149 (Div. 2) Tutorial | 1100 | |
| 5564 | Internet Address | implementation strings | Statement | B | CROC-MBTU 2012, Elimination Round (ACM-ICPC) {245} | PROGRAMMING | КРОК-МВТУ 2012, Отборочный раунд (Разбор) | 1100 | |
| 1004 | Log Stream Analysis | binary search brute force implementation strings | Statement | F | CROC-MBTU 2012, Elimination Round (ACM-ICPC) {245} | PROGRAMMING | КРОК-МВТУ 2012, Отборочный раунд (Разбор) | 2000 | |
| 2285 | Restoring IPv6 | implementation strings | Statement | B | CROC-MBTU 2012, Final Round (Online version, Div. 2) {250} | PROGRAMMING | CROC-MBTU 2012, Final Round, Editorial | 1500 | |
| 1388 | Playing with Permutations | implementation math | Statement | B | Codeforces Round 153 (Div. 1) {251} | PROGRAMMING | Editorial of Codeforces Round #153 | 1900 | |
| 216 | Tree and Table | dfs and similar dp implementation trees | Statement | E | Codeforces Round 153 (Div. 1) {251} | PROGRAMMING | Editorial of Codeforces Round #153 | 3000 | |
| 616 | Printer | binary search data structures implementation sortings | Statement | E | Codeforces Round 154 (Div. 2) {253} | PROGRAMMING | Codeforces Round #154 (Div. 2) — tutorial | 2300 | |
| 672 | Rats | brute force dfs and similar graphs implementation shortest paths | Statement | D | Codeforces Round 155 (Div. 2) {254} | PROGRAMMING | Codeforces Round #155 (Div. 2) — tutorial | 2600 | |
| 2225 | Mr. Bender and Square | binary search implementation math | Statement | D | Codeforces Round 156 (Div. 2) {255} | PROGRAMMING | Codeforces Round #156 tutorial | 1900 | |
| 1029 | Furlo and Rublo and Game | games implementation math | Statement | E | Codeforces Round 156 (Div. 2) {255} | PROGRAMMING | Codeforces Round #156 tutorial | 2200 | |
| 6998 | Sockets | greedy implementation sortings | Statement | A | Codeforces Round 159 (Div. 2) {257} | PROGRAMMING | Codeforces Round #159 (Div. 2) Разбор Задач | 1200 | |
| 16881 | Adding Digits | implementation math | Statement | A | Codeforces Round 158 (Div. 2) {260} | PROGRAMMING | Codeforces Round #158 (Div. 2) Tutorial | 1400 | |
| 4110 | Ancient Prophesy | brute force implementation strings | Statement | B | Codeforces Round 158 (Div. 2) {260} | PROGRAMMING | Codeforces Round #158 (Div. 2) Tutorial | 1600 | |
| 9924 | Squares | greedy implementation sortings | Statement | B | Codeforces Round 161 (Div. 2) {263} | PROGRAMMING | Codeforces Round #161 Tutorial | 1000 | |
| 11933 | Escape from Stones | constructive algorithms data structures implementation two pointers | Statement | A | Codeforces Round 162 (Div. 1) {264} | PROGRAMMING | Tutorial | 1400 | |
| 173865 | Queue at the School | constructive algorithms graph matchings implementation shortest paths | Statement | B | Codeforces Round 163 (Div. 2) {266} | PROGRAMMING | Codeforces Round #163 (Div. 2) Tutorial | 900 | |
| 36520 | Buttons | implementation math | Statement | B | Codeforces Round 164 (Div. 2) {268} | PROGRAMMING | Codeforces Round #164 (Div. 2) — Разбор задач | 1000 | |
| 52123 | Fancy Fence | geometry implementation math | Statement | A | Codeforces Round 165 (Div. 2) {270} | PROGRAMMING | Разбор Codeforces Round #165 | 1200 | |
| 28252 | Dima and Friends | implementation math | Statement | A | Codeforces Round 167 (Div. 2) {272} | PROGRAMMING | Codeforces Round #167 tutorial | 1000 | |
| 4343 | Dima and Sequence | implementation math | Statement | B | Codeforces Round 167 (Div. 2) {272} | PROGRAMMING | Codeforces Round #167 tutorial | 1400 | |
| 43559 | Little Girl and Maximum Sum | data structures greedy implementation sortings | Statement | C | Codeforces Round 169 (Div. 2) {276} | PROGRAMMING | Codeforces Round #169 — Unofficial Editorial | 1600 | |
| 17057 | Little Girl and Maximum XOR | bitmasks dp greedy implementation math | Statement | D | Codeforces Round 169 (Div. 2) {276} | PROGRAMMING | Codeforces Round #169 — Unofficial Editorial | 1800 | |
| 79995 | Books | binary search brute force implementation two pointers | Statement | B | Codeforces Round 171 (Div. 2) {279} | PROGRAMMING | Codeforces Round #171 (Div. 2) Разбор Задач | 1400 | |
| 9111 | Ladder | dp implementation two pointers | Statement | C | Codeforces Round 171 (Div. 2) {279} | PROGRAMMING | Unofficial editorial for Codeforces Round #171 (Div. 2) | 1700 | |
| 5409 | Maximum Xor Secondary | data structures implementation two pointers | Statement | B | Codeforces Round 172 (Div. 1) {280} | PROGRAMMING | T | 2000 | |
| 5649 | Game on Tree | implementation math probabilities trees | Statement | C | Codeforces Round 172 (Div. 1) {280} | PROGRAMMING | T | 2400 | |
| 352 | Sequence Transformation | data structures dp implementation math | Statement | E | Codeforces Round 172 (Div. 1) {280} | PROGRAMMING | Codeforces Round #172 Editorial | 3000 | |
| 3471 | Nearest Fraction | brute force implementation two pointers | Statement | B | Codeforces Round 172 (Div. 2) {281} | PROGRAMMING | Codeforces Round #172 Editorial | 1700 | |
| 284517 | Word Capitalization | implementation strings | Statement | A | Codeforces Round 172 (Div. 2) {281} | PROGRAMMING | Codeforces Round #172 Editorial | 800 | |
| 10427 | XOR and OR | constructive algorithms implementation math | Statement | C | Codeforces Round 173 (Div. 2) {282} | PROGRAMMING | Round #173 — Editorial | 1600 | |
| 7520 | Cows and Primitive Roots | implementation math number theory | Statement | A | Codeforces Round 174 (Div. 2) {284} | PROGRAMMING | Editorial for Codeforces #174 | 1400 | |
| 26764 | Building Permutation | greedy implementation sortings | Statement | C | Codeforces Round 175 (Div. 2) {285} | PROGRAMMING | Codeforces Round #175 (Div. 2) Tutorial | 1300 | |
| 1708 | Permutation Sum | bitmasks combinatorics dp implementation meet-in-the-middle | Statement | D | Codeforces Round 175 (Div. 2) {285} | PROGRAMMING | Codeforces Round #175 (Div. 2) Tutorial | 1900 | |
| 2477 | Polo the Penguin and XOR operation | implementation math | Statement | C | Codeforces Round 177 (Div. 1) {288} | PROGRAMMING | Codeforces Round #177, editorial | 1900 | |
| 414 | Polo the Penguin and Lucky Numbers | dp implementation math | Statement | E | Codeforces Round 177 (Div. 1) {288} | PROGRAMMING | Codeforces Round #177, editorial | 2800 | |
| 19282 | Polo the Penguin and Matrix | brute force dp implementation sortings ternary search | Statement | B | Codeforces Round 177 (Div. 2) {289} | PROGRAMMING | Codeforces Round #177, editorial | 1400 | |
| 1690 | WTF? | *special graph matchings implementation trees | Statement | C | April Fools Day Contest 2013 {290} | PROGRAMMING | April Fools Day Contest 2013: editorial | 1800 | |
| 6569 | Spyke Talks | *special implementation sortings | Statement | A | Croc Champ 2013 - Qualification Round {291} | PROGRAMMING | 1900 | ||
| 3108 | Command Line Arguments | *special implementation strings | Statement | B | Croc Champ 2013 - Qualification Round {291} | PROGRAMMING | 2000 | ||
| 419 | Shaass and Painter Robot | brute force implementation number theory | Statement | D | Codeforces Round 178 (Div. 2) {294} | PROGRAMMING | Codeforces Round #178 Editorial | 2700 | |
| 29038 | Shaass and Oskols | implementation math | Statement | A | Codeforces Round 178 (Div. 2) {294} | PROGRAMMING | Codeforces Round #178 Editorial | 900 | |
| 9584 | Eugeny and Play List | binary search implementation two pointers | Statement | B | Codeforces Round 182 (Div. 2) {302} | PROGRAMMING | Codeforces Round #182 tutorial | 1200 | |
| 8679 | Lucky Permutation Triple | constructive algorithms implementation math | Statement | A | Codeforces Round 183 (Div. 1) {303} | PROGRAMMING | Codeforces Round #183 Editorial | 1400 | |
| 1443 | Rectangle Puzzle II | implementation math | Statement | B | Codeforces Round 183 (Div. 1) {303} | PROGRAMMING | Codeforces Round #183 Editorial | 1900 | |
| 2325 | Continued Fractions | brute force implementation math | Statement | B | Codeforces Round 184 (Div. 2) {305} | PROGRAMMING | 7712 | 1600 | |
| 5444 | Whose sentence is it? | implementation strings | Statement | A | Codeforces Round 185 (Div. 2) {312} | PROGRAMMING | Codeforces Round #185 Editorial | 1300 | |
| 6016 | Ilya and Matrix | constructive algorithms greedy implementation sortings | Statement | C | Codeforces Round 186 (Div. 2) {313} | PROGRAMMING | Tutorial | 1400 | |
| 67083 | Ilya and Bank Account | implementation number theory | Statement | A | Codeforces Round 186 (Div. 2) {313} | PROGRAMMING | Tutorial | 900 | |
| 8411 | Strings of Power | implementation strings two pointers | Statement | B | Codeforces Round 188 (Div. 2) {318} | PROGRAMMING | 7956 | 1300 | |
| 3940 | Ciel and Robot | binary search implementation math | Statement | A | Codeforces Round 190 (Div. 1) {321} | PROGRAMMING | Codeforces Round #190 — Editorial | 1700 | |
| 210 | Escaping on Beaveractor | data structures implementation trees | Statement | D3 | ABBYY Cup 3.0 - Finals (online version) {331} | PROGRAMMING | ABBYY Cup 3.0 — Finals. Solutions | 2900 | |
| 2284 | Characteristics of Rectangles | binary search bitmasks brute force implementation sortings | Statement | D | Codeforces Round 194 (Div. 1) {333} | PROGRAMMING | Codeforces Round 194 — Editoral | 2100 | |
| 10794 | Vasily the Bear and Triangle | implementation math | Statement | A | Codeforces Round 195 (Div. 2) {336} | PROGRAMMING | Tutorial Codeforces Round #195 (Div. 2) | 1100 | |
| 2679 | Vasily the Bear and Sequence | brute force greedy implementation number theory | Statement | C | Codeforces Round 195 (Div. 2) {336} | PROGRAMMING | Tutorial Codeforces Round #195 (Div. 2) | 1800 | |
| 290590 | Helpful Maths | greedy implementation sortings strings | Statement | A | Codeforces Round 197 (Div. 2) {339} | PROGRAMMING | Codeforces Round #197 — Tutorial | 900 | |
| 4759 | Tourist Problem | combinatorics implementation math | Statement | C | Codeforces Round 198 (Div. 2) {340} | PROGRAMMING | Tutorial | 1700 | |
| 9970 | Fixed Points | brute force implementation math | Statement | B | Codeforces Round 201 (Div. 2) {347} | PROGRAMMING | Codeforces Round #201 Editorial | 1200 | |
| 9916 | Difference Row | constructive algorithms implementation sortings | Statement | A | Codeforces Round 201 (Div. 2) {347} | PROGRAMMING | Codeforces Round #201 Editorial | 1300 | |
| 6870 | Bombs | greedy implementation sortings | Statement | C | Codeforces Round 203 (Div. 2) {350} | PROGRAMMING | Editorial Codeforces Round #203 (Div. 2) | 1600 | |
| 3113 | Jeff and Rounding | dp greedy implementation math | Statement | A | Codeforces Round 204 (Div. 1) {351} | PROGRAMMING | Codeforces Round #204 — tutorial | 1900 | |
| 29160 | Jeff and Digits | brute force implementation math | Statement | A | Codeforces Round 204 (Div. 2) {352} | PROGRAMMING | 1100 | ||
| 18467 | Jeff and Periods | implementation sortings | Statement | B | Codeforces Round 204 (Div. 2) {352} | PROGRAMMING | 1300 | ||
| 20249 | Domino | implementation math | Statement | A | Codeforces Round 205 (Div. 2) {353} | PROGRAMMING | 9145 | 1300 | |
| 5314 | Find Maximum | implementation math number theory | Statement | C | Codeforces Round 205 (Div. 2) {353} | PROGRAMMING | 9145 | 1600 | |
| 2450 | Two Heaps | combinatorics constructive algorithms greedy implementation math sortings | Statement | B | Codeforces Round 205 (Div. 2) {353} | PROGRAMMING | 9145 | 1800 | |
| 2122 | Xenia and Hamming | implementation math | Statement | B | Codeforces Round 207 (Div. 1) {356} | PROGRAMMING | 9210 | 2000 | |
| 605 | Xenia and String Problem | dp hashing implementation string suffix structures strings | Statement | E | Codeforces Round 207 (Div. 1) {356} | PROGRAMMING | 9210 | 2800 | |
| 14867 | Petya and Staircases | implementation sortings | Statement | B | Codeforces Round 212 (Div. 2) {362} | PROGRAMMING | Codeforces Round #212 (Div. 2). Tutorial. Part 1. | 1200 | |
| 2057 | Insertion Sort | data structures dp implementation math | Statement | C | Codeforces Round 212 (Div. 2) {362} | PROGRAMMING | Codeforces Round #212 (Div. 2). Tutorial. Part 1. | 2000 | |
| 876 | Dima and Magic Guitar | brute force implementation math | Statement | E | Codeforces Round 214 (Div. 2) {366} | PROGRAMMING | Codeforces Round #214 (Div. 2) — Tutorial | 2300 | |
| 6944 | Valera and Contest | constructive algorithms implementation math | Statement | B | Codeforces Round 216 (Div. 2) {369} | PROGRAMMING | Editorial Codeforces Round #216 (Div. 2) | 1500 | |
| 6791 | K-Periodic Array | greedy implementation math | Statement | A | Codeforces Round 218 (Div. 2) {371} | PROGRAMMING | Codeforces Round #218 (Div. 2): Tutorial | 1200 | |
| 6894 | Vessels | data structures dsu implementation trees | Statement | D | Codeforces Round 218 (Div. 2) {371} | PROGRAMMING | Codeforces Round #218 (Div. 2): Tutorial | 1900 | |
| 2831 | Making Sequences is Fun | binary search implementation math | Statement | B | Codeforces Round 219 (Div. 2) {373} | PROGRAMMING | Codeforces Round #219 editorial | 1600 | |
| 5482 | Maximum Submatrix 2 | data structures dp implementation sortings | Statement | B | Codeforces Round 221 (Div. 1) {375} | PROGRAMMING | Codeforces Round #221 Tutorial | 1800 | |
| 675 | Red and Black Tree | dp implementation math | Statement | E | Codeforces Round 221 (Div. 1) {375} | PROGRAMMING | Codeforces Round #221 Tutorial | 3000 | |
| 10002 | Lever | implementation math | Statement | A | Codeforces Round 221 (Div. 2) {376} | PROGRAMMING | Codeforces Round #221 Tutorial | 1000 | |
| 6266 | Semifinals | implementation sortings | Statement | B | Codeforces Round 222 (Div. 2) {378} | PROGRAMMING | Codeforces Round #222 — Problem Analysis | 1300 | |
| 7450 | Sereja and Stairs | greedy implementation sortings | Statement | B | Codeforces Round 223 (Div. 2) {381} | PROGRAMMING | Codeforces Round #223 — Tutorial | 1100 | |
| 96009 | Sereja and Dima | greedy implementation two pointers | Statement | A | Codeforces Round 223 (Div. 2) {381} | PROGRAMMING | Codeforces Round #223 — Tutorial | 800 | |
| 8818 | Arithmetic Progression | implementation sortings | Statement | C | Codeforces Round 224 (Div. 2) {382} | PROGRAMMING | Codeforces Round #224 (Div. 2) Editorial | 1700 | |
| 756 | Ksenia and Pawns | dfs and similar graphs implementation trees | Statement | D | Codeforces Round 224 (Div. 2) {382} | PROGRAMMING | Codeforces Round #224 (Div. 2) Editorial | 2300 | |
| 820 | Volcanoes | binary search implementation sortings two pointers | Statement | B | Codeforces Round 225 (Div. 1) {383} | PROGRAMMING | Tutorial | 2200 | |
| 3847 | Multitasking | greedy implementation sortings two pointers | Statement | B | Codeforces Round 225 (Div. 2) {384} | PROGRAMMING | Codeforces Round #225 — Editorial | 1500 | |
| 10993 | Bear and Strings | brute force greedy implementation math strings | Statement | B | Codeforces Round 226 (Div. 2) {385} | PROGRAMMING | Codeforces Round #226 (Div. 2) — Editorial | 1300 | |
| 10904 | Bear and Prime Numbers | binary search brute force data structures dp implementation math number theory | Statement | C | Codeforces Round 226 (Div. 2) {385} | PROGRAMMING | Codeforces Round #226 (Div. 2) — Editorial | 1800 | |
| 586 | Game with Points | dp graphs implementation shortest paths | Statement | D | Testing Round 9 {386} | PROGRAMMING | 2300 | ||
| 2623 | Fox and Minimal path | bitmasks constructive algorithms graphs implementation math | Statement | B | Codeforces Round 228 (Div. 1) {388} | PROGRAMMING | Codeforces Round #228 — Editorial | 2000 | |
| 1817 | Genetic Engineering | implementation two pointers | Statement | A | Rockethon 2014 {391} | PROGRAMMING | 3.0 | Rockethon 2014 Editorial | |
| 301 | Physical Education and Buns | brute force implementation math | Statement | D | Codeforces Round 231 (Div. 2) {394} | PROGRAMMING | 2000.0 | ||
| 836 | On Corruption and Numbers | constructive algorithms implementation math | Statement | B | Codeforces Round 232 (Div. 2) {397} | PROGRAMMING | 1000.0 | Codeforces Round #232 Editorial (restored) | |
| 8719 | Inna and New Matrix of Candies | brute force implementation schedules | Statement | B | Codeforces Round 234 (Div. 2) {400} | PROGRAMMING | Codeforces Round #234 (Div. 2) — Tutorial | 1300 | |
| 3041 | Inna and Huge Candy Matrix | implementation math | Statement | C | Codeforces Round 234 (Div. 2) {400} | PROGRAMMING | Codeforces Round #234 (Div. 2) — Tutorial | 1500 | |
| 4650 | Sereja and Contests | greedy implementation math | Statement | B | Codeforces Round 235 (Div. 2) {401} | PROGRAMMING | Codeforces Round #235 (Div. 2) — Tutorial | 1200 | |
| 17630 | Vanya and Cards | implementation math | Statement | A | Codeforces Round 235 (Div. 2) {401} | PROGRAMMING | Codeforces Round #235 (Div. 2) — Tutorial | 900 | |
| 280 | Two Rooted Trees | data structures implementation trees | Statement | E | Codeforces Round 236 (Div. 1) {403} | PROGRAMMING | Editorial Codeforces Round #236 | 2900 | |
| 3067 | Marathon | implementation math | Statement | B | Codeforces Round 237 (Div. 2) {404} | PROGRAMMING | Codeforces Round #237 (Div. 2) Editorial | 1500 | |
| 132270 | Gravity Flip | greedy implementation sortings | Statement | A | Codeforces Round 238 (Div. 2) {405} | PROGRAMMING | Codeforces Round #238 Tutorial | 1000 | |
| 4980 | Unusual Product | implementation math | Statement | C | Codeforces Round 238 (Div. 2) {405} | PROGRAMMING | Codeforces Round #238 Tutorial | 1600 | |
| 3307 | Toy Sum | greedy implementation math | Statement | D | Codeforces Round 238 (Div. 2) {405} | PROGRAMMING | Codeforces Round #238 Tutorial | 1900 | |
| 408 | Hamming Triples | implementation math two pointers | Statement | E | Codeforces Round 238 (Div. 1) {406} | PROGRAMMING | Codeforces Round #238 Tutorial | 2700 | |
| 5224 | Triangle | brute force geometry implementation math | Statement | A | Codeforces Round 239 (Div. 1) {407} | PROGRAMMING | Codeforces Round #239 Editorial | 1700 | |
| 1260 | Curious Array | brute force combinatorics implementation math | Statement | C | Codeforces Round 239 (Div. 1) {407} | PROGRAMMING | Codeforces Round #239 Editorial | 2500 | |
| 4291 | Pattern | implementation strings | Statement | C | Coder-Strike 2014 - Round 1 {412} | PROGRAMMING | Editorial of Coder-Strike 2014 Round 1 | 1300 | |
| 6755 | Mashmokh and Tokens | binary search greedy implementation math | Statement | B | Codeforces Round 240 (Div. 2) {415} | PROGRAMMING | Codeforces Round #240 Editorial | 1500 | |
| 10221 | Guess a number! | greedy implementation two pointers | Statement | A | Codeforces Round 241 (Div. 2) {416} | PROGRAMMING | Codeforces Round #241 — editorial | 1400 | |
| 1168 | Population Size | greedy implementation math | Statement | D | Codeforces Round 241 (Div. 2) {416} | PROGRAMMING | Codeforces Round #241 — editorial | 2300 | |
| 3462 | Elimination | dp implementation math | Statement | A | RCC 2014 Warmup (Div. 2) {417} | PROGRAMMING | RCC 2014 WarmUp Analysis | 1500 | |
| 1444 | Bug in Code | data structures graphs implementation two pointers | Statement | C | Coder-Strike 2014 - Finals (online edition, Div. 1) {420} | PROGRAMMING | Editorial Coder-Strike 2014 Finals | 1900 | |
| 8550 | Megacity | binary search greedy implementation sortings | Statement | B | Codeforces Round 242 (Div. 2) {424} | PROGRAMMING | Codeforces Round #242 (Div. 2) Editorial | 1200 | |
| 1691 | Police Patrol | greedy implementation math ternary search | Statement | E | Codeforces Round 244 (Div. 2) {427} | PROGRAMMING | Codeforces Round #244 (Div. 2) Editorial | 2000 | |
| 31046 | k-Tree | dp implementation trees | Statement | C | Codeforces Round 247 (Div. 2) {431} | PROGRAMMING | Editorial Codeforces Round #247 (Div. 2) | 1600 | |
| 71408 | Choosing Teams | greedy implementation sortings | Statement | A | Codeforces Round 246 (Div. 2) {432} | PROGRAMMING | Codeforces Round #246 (Div. 2) Editorial | 900 | |
| 57909 | Kuriyama Mirai's Stones | dp implementation sortings | Statement | B | Codeforces Round 248 (Div. 2) {433} | PROGRAMMING | Codeforces Round #248 Editorial | 1200 | |
| 2645 | Ryouko's Memory Note | implementation math sortings | Statement | C | Codeforces Round 248 (Div. 2) {433} | PROGRAMMING | Codeforces Round #248 Editorial | 1900 | |
| 3185 | Om Nom and Spiders | implementation math | Statement | B | Zepto Code Rush 2014 {436} | PROGRAMMING | Zepto Code Rush 2014 — solutions A-D | 1400 | |
| 10586 | The Child and Set | bitmasks greedy implementation sortings | Statement | B | Codeforces Round 250 (Div. 2) {437} | PROGRAMMING | 12513 | 1500 | |
| 15117 | Devu, the Dumb Guy | implementation sortings | Statement | B | Codeforces Round 251 (Div. 2) {439} | PROGRAMMING | Codeforces Round #251 Editorial | 1200 |