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14303 Hexadecimal's Numbers brute force implementation math Statement C Codeforces Beta Round 9 (Div. 2 Only) {9} PROGRAMMING Codeforces Beta Round #9 tutorial 1500
3842 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
651 Collisions brute force implementation math Statement E Codeforces Beta Round 34 (Div. 2) {34} PROGRAMMING Codeforces Beta Round #34 (Div. 2) Разбор 2100
4017 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
5650 Elevator brute force implementation math Statement A School Regional Team Contest, Saratov, 2011 {120} PROGRAMMING Tutorial for school regional team contest of Saratov 1000
9228 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
2281 Continued Fractions brute force implementation math Statement B Codeforces Round 184 (Div. 2) {305} PROGRAMMING 7712 1600
9852 Fixed Points brute force implementation math Statement B Codeforces Round 201 (Div. 2) {347} PROGRAMMING Codeforces Round #201 Editorial 1200
28452 Jeff and Digits brute force implementation math Statement A Codeforces Round 204 (Div. 2) {352} PROGRAMMING 1100
843 Dima and Magic Guitar brute force implementation math Statement E Codeforces Round 214 (Div. 2) {366} PROGRAMMING Codeforces Round #214 (Div. 2) — Tutorial 2300
10812 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
10545 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
298 Physical Education and Buns brute force implementation math Statement D Codeforces Round 231 (Div. 2) {394} PROGRAMMING 2000.0
5165 Triangle brute force geometry implementation math Statement A Codeforces Round 239 (Div. 1) {407} PROGRAMMING Codeforces Round #239 Editorial 1700
1189 Curious Array brute force combinatorics implementation math Statement C Codeforces Round 239 (Div. 1) {407} PROGRAMMING Codeforces Round #239 Editorial 2500
3577 Predict Outcome of the Game brute force implementation math Statement C Codeforces Round 258 (Div. 2) {451} PROGRAMMING Codeforces Round #258 Editorial 1700
51875 Vasya and Socks brute force implementation math Statement A Codeforces Round 262 (Div. 2) {460} PROGRAMMING 13465 1000
13359 Little Dima and Equation brute force implementation math number theory Statement B Codeforces Round 262 (Div. 2) {460} PROGRAMMING 13465 1500
29914 Caisa and Pylons brute force implementation math Statement B Codeforces Round 264 (Div. 2) {463} PROGRAMMING CF 264 Div 2 Tutorial 1200
24841 Counterexample brute force implementation math number theory Statement A Codeforces Round 275 (Div. 2) {483} PROGRAMMING Codeforces Round #275 Editorial 1100
17162 Minimum Difficulty brute force implementation math Statement A Codeforces Round 283 (Div. 2) {496} PROGRAMMING Codeforces Round #283: editorial (with bonuses!) 1000
22588 Han Solo and Lazer Gun brute force data structures geometry implementation math Statement B Codeforces Round 291 (Div. 2) {514} PROGRAMMING Codeforces Round #291 (Div. 2) Editorial 1400
6126 Tourist's Notes binary search brute force greedy implementation math Statement C Codeforces Round 300 {538} PROGRAMMING Codeforces Round #300 Editorial (+challenges) 1600
233994 Soldier and Bananas brute force implementation math Statement A Codeforces Round 304 (Div. 2) {546} PROGRAMMING Codeforces Round #304 (Div.2) editorial 800
2746 Mike and Frog brute force greedy implementation math Statement A Codeforces Round 305 (Div. 1) {547} PROGRAMMING Codeforces Round #305 Editorial 1900
1733 Vanya and Brackets brute force dp expression parsing greedy implementation strings Statement E Codeforces Round 308 (Div. 2) {552} PROGRAMMING Codeforces #308 (Div. 2) Editorial 2300
5397 Primes or Palindromes? brute force implementation math number theory Statement A Codeforces Round 315 (Div. 1) {568} PROGRAMMING Codeforces Round #315 Editorial 1700
4668 Three Logos bitmasks brute force constructive algorithms geometry implementation math Statement D Codeforces Round 322 (Div. 2) {581} PROGRAMMING Codeforces Round #322 (Div.2) Editorial 1700
3044 Fibonacci-ish brute force dp hashing implementation math Statement D Manthan, Codefest 16 {633} PROGRAMMING Manthan, Codefest 16: Editorials 2000
342 Bear and Chase brute force dfs and similar graphs implementation math probabilities Statement D Codeforces Round 356 (Div. 1) {679} PROGRAMMING Codeforces Round #356 — Editorial 2900
5985 Barnicle brute force implementation math strings Statement B Codeforces Round 362 (Div. 2) {697} PROGRAMMING 1400
13575 Powers of Two brute force data structures implementation math Statement B Educational Codeforces Round 15 {702} PROGRAMMING 46324 1500
4222 Batch Sort brute force greedy implementation math Statement B Intel Code Challenge Final Round (Div. 1 + Div. 2, Combined) {724} PROGRAMMING Tutorial 1500
3137 Video Cards brute force data structures implementation math number theory Statement F Codeforces Round 376 (Div. 2) {731} PROGRAMMING 47840 1900
88347 Buy a Shovel brute force constructive algorithms implementation math Statement A Codeforces Round 377 (Div. 2) {732} PROGRAMMING Codeforces Round #377 (Div. 2) Editorial 800
31883 Anton and Digits brute force greedy implementation math Statement B Codeforces Round 379 (Div. 2) {734} PROGRAMMING Tutorial of Codeforces Round #379 (Div. 2) 800
92149 New Year and Hurry binary search brute force implementation math Statement A Good Bye 2016 {750} PROGRAMMING Good Bye 2016 — hints and codes 800
15110 Dasha and Stairs brute force constructive algorithms implementation math Statement A Codeforces Round 394 (Div. 2) {761} PROGRAMMING Codeforces Round #394 (Div. 2) [Editorial] 1100
7054 Dasha and friends brute force implementation math Statement B Codeforces Round 394 (Div. 2) {761} PROGRAMMING Codeforces Round #394 (Div. 2) [Editorial] 1300
776 Timofey and remoduling brute force implementation math number theory Statement C Codeforces Round 395 (Div. 1) {763} PROGRAMMING Codeforces Round #395 [Editorial] 2500
17085 Taymyr is calling you brute force implementation math Statement A Codeforces Round 395 (Div. 2) {764} PROGRAMMING Codeforces Round #395 [Editorial] 800
6237 Molly's Chemicals binary search brute force data structures implementation math Statement C ICM Technex 2017 and Codeforces Round 400 (Div. 1 + Div. 2, combined) {776} PROGRAMMING ICM Technex 2017 and Codeforces Round #400 (Div. 1 + Div. 2, combined) Editorial 1800
4904 Masha and geometric depression brute force implementation math Statement B Codeforces Round 407 (Div. 2) {789} PROGRAMMING Codeforces Round #407(Div.1 + Div.2) Editorial 1700
1306 Bamboo Partition brute force data structures implementation math number theory sortings two pointers Statement C Codeforces Round 424 (Div. 1, rated, based on VK Cup Finals) {830} PROGRAMMING Codeforces Round #424 Editorial 2500
427 Digits brute force implementation math Statement A Bubble Cup X - Finals [Online Mirror] {852} PROGRAMMING Tutorial 2700
7197 New Year and Curling brute force geometry implementation math Statement C Good Bye 2017 {908} PROGRAMMING Good Bye 2017 Editorial 1500
15703 Perfect Squares brute force implementation math Statement A Codecraft-18 and Codeforces Round 458 (Div. 1 + Div. 2, combined) {914} PROGRAMMING Tutorial 1100
9538 Jamie and Alarm Snooze brute force implementation math Statement A Codeforces Round 457 (Div. 2) {916} PROGRAMMING Codeforces Round #457 (Div. 2) Editorial 1200
13071 Friends Meeting brute force greedy implementation math Statement A Codeforces Round 468 (Div. 2, based on Technocup 2018 Final Round) {931} PROGRAMMING Codeforces Round #468 and Technocup 2018 Final Round Analysis 800
8351 Make a Square brute force implementation math Statement C Educational Codeforces Round 42 (Rated for Div. 2) {962} PROGRAMMING Educational Codeforces Round 42 Editorial 1400
9924 Almost Arithmetic Progression brute force implementation math Statement D Codeforces Round 481 (Div. 3) {978} PROGRAMMING T 1500
340 Concise and clear brute force greedy implementation math Statement F Codeforces Round 491 (Div. 2) {991} PROGRAMMING 60181 2800
1749 Nastya and a Game brute force implementation math Statement D Codeforces Round 489 (Div. 2) {992} PROGRAMMING 60083 2100
8653 Convert to Ones brute force greedy implementation math Statement A Codeforces Round 493 (Div. 1) {997} PROGRAMMING 60357 1500
11485 Intense Heat brute force implementation math Statement C Codeforces Round 494 (Div. 3) {1003} PROGRAMMING 60417 1300
6673 Photo of The Sky brute force implementation math sortings Statement A Codeforces Round 500 (Div. 1) [based on EJOI] {1012} PROGRAMMING 60920 1500
9868 Vasya and Multisets brute force dp greedy implementation math Statement C Educational Codeforces Round 51 (Rated for Div. 2) {1051} PROGRAMMING Educational Codeforces Round 51 Editorial 1400
18554 New Year and the Christmas Ornament brute force implementation math Statement A Good Bye 2018 {1091} PROGRAMMING Editorial 900
6508 Average Superhero Gang Power brute force implementation math Statement B CodeCraft-19 and Codeforces Round 537 (Div. 2) {1111} PROGRAMMING CodeCraft-19 and Codeforces Round #537 (Div. 2) Editorial 1600
7823 Trailing Loves (or L'oeufs?) brute force implementation math number theory Statement C Codeforces Round 538 (Div. 2) {1114} PROGRAMMING Codeforces Round #538 (Div. 2) Editorial 1700
1162 Graph Traveler brute force data structures dfs and similar dp graphs implementation math number theory Statement F Codeforces Round 578 (Div. 2) {1200} PROGRAMMING Codeforces Round #578 (Div. 2) Editorial 2500
2763 You Are Given a WASD-string... brute force data structures dp greedy implementation math strings Statement C Educational Codeforces Round 70 (Rated for Div. 2) {1202} PROGRAMMING 68972 2100
23369 There Are Two Types Of Burgers brute force greedy implementation math Statement A Educational Codeforces Round 71 (Rated for Div. 2) {1207} PROGRAMMING Educational Codeforces Round 71 Editorial 700
294 Harry The Potter brute force constructive algorithms dp fft implementation math Statement F Codeforces Round 612 (Div. 1) {1286} PROGRAMMING Codeforces Round #612 - Editorial 3200
4128 Challenges in school №41 brute force constructive algorithms games graphs greedy implementation sortings Statement D Codeforces Round 632 (Div. 2) {1333} PROGRAMMING 1750.0 Codeforces Round #632 (Div. 2) editorial
3436 Perfect Triples bitmasks brute force constructive algorithms divide and conquer greedy implementation math Statement C Codeforces Round 633 (Div. 1) {1338} PROGRAMMING 1500.0 Editorial
18495 Square? brute force implementation math Statement B Testing Round 16 (Unrated) {1351} PROGRAMMING 1000.0 900
28748 Sequence with Digits brute force implementation math Statement A Codeforces Round 643 (Div. 2) {1355} PROGRAMMING 750.0 Codeforces Round #643 (Div. 2) Editorial 1200
40288 Odd Selection brute force implementation math Statement A Codeforces Round 646 (Div. 2) {1363} PROGRAMMING 500.0 78202 1200
64005 Maximum GCD brute force greedy implementation number theory Statement A Codeforces Round 651 (Div. 2) {1370} PROGRAMMING 500.0 Editorial — Codeforces Round #651
5523 Asterism (Easy Version) brute force combinatorics implementation math number theory sortings Statement E1 Codeforces Round 654 (Div. 2) {1371} PROGRAMMING 1500.0 Codeforces Round #654 (Div. 2) Editorial
4546 Segment Intersections binary search brute force greedy implementation math Statement D Educational Codeforces Round 92 (Rated for Div. 2) {1389} PROGRAMMING 80809
16949 Stairs brute force constructive algorithms greedy implementation math two pointers Statement B Codeforces Round 671 (Div. 2) {1419} PROGRAMMING 750.0 Codeforces Round #671 Editorial
4375 Hexagons brute force implementation math shortest paths ternary search Statement D Codeforces Round 676 (Div. 2) {1421} PROGRAMMING 2000.0 Codeforces Round #676 (Div. 2) Editorial
10169 Divide and Summarize binary search brute force data structures divide and conquer implementation sortings Statement D Codeforces Round 689 (Div. 2, based on Zed Code Competition) {1461} PROGRAMMING 1500.0 Codeforces Round #689 (Div. 2). Editorial
2209 Water Level brute force graphs greedy implementation math Statement E Codeforces Round 689 (Div. 2, based on Zed Code Competition) {1461} PROGRAMMING 2250.0 Codeforces Round #689 (Div. 2). Editorial
19919 Strange List brute force greedy implementation math Statement B Codeforces Round 694 (Div. 2) {1471} PROGRAMMING 750.0 Codeforces Round #694 Editorial
15386 Minimum Ties brute force constructive algorithms dfs and similar graphs greedy implementation math Statement C Educational Codeforces Round 104 (Rated for Div. 2) {1487} PROGRAMMING 87873
14222 Minimal Cost brute force greedy implementation math Statement B Codeforces Global Round 13 {1491} PROGRAMMING 750.0 Codeforces Global Round 13 Editorial
9480 Going Home brute force implementation math Statement A Codeforces Round 707 (Div. 1, based on Moscow Open Olympiad in Informatics) {1500} PROGRAMMING 750.0 Codeforces Round #707 Editorial 1800
17530 Maximum Sum of Products brute force dp implementation math ternary search two pointers Statement D Educational Codeforces Round 108 (Rated for Div. 2) {1519} PROGRAMMING Educational Codeforces Round 108 Editorial
5605 Need for Pink Slips brute force dfs and similar implementation math probabilities Statement C Codeforces Round 730 (Div. 2) {1543} PROGRAMMING 1500.0 Codeforces Round #730 (Div. 2) Editorial
2055 Excellent Arrays brute force combinatorics constructive algorithms implementation math Statement D Educational Codeforces Round 111 (Rated for Div. 2) {1550} PROGRAMMING Educational Codeforces Round 111 Editorial
20521 Scenes From a Memory brute force implementation math number theory Statement B Codeforces Round 741 (Div. 2) {1562} PROGRAMMING 1000.0 Editorial of Codeforces Round 741 (Div. 2)
368 Sweepstake *special brute force constructive algorithms implementation math Statement D Kotlin Heroes: Episode 8 {1571} PROGRAMMING Kotlin Heroes 8 Editorial
5337 Array Stabilization (AND version) binary search brute force graphs greedy implementation math number theory shortest paths Statement F Codeforces Round 744 (Div. 3) {1579} PROGRAMMING Codeforces Round #744 (Div. 3) Editorial
1606 Rubik's Cube Coloring (hard version) brute force dp implementation math trees Statement E2 Codeforces Round 747 (Div. 2) {1594} PROGRAMMING 1500.0 95525 2300
13187 Representative Edges brute force geometry implementation math Statement C Good Bye 2021: 2022 is NEAR {1616} PROGRAMMING 1500.0 Good Bye 2021 -- Editorial 1500
7262 BA-String bitmasks brute force dp greedy implementation math shortest paths Statement C Educational Codeforces Round 119 (Rated for Div. 2) {1620} PROGRAMMING 98061
20672 Robot Cleaner brute force implementation math Statement A Codeforces Round 763 (Div. 2) {1623} PROGRAMMING 500.0 Codeforces Round #763 (Div. 2) Editorial
3487 Expand the Path brute force combinatorics implementation math Statement E Educational Codeforces Round 123 (Rated for Div. 2) {1644} PROGRAMMING 100227
7941 Promising String (easy version) brute force implementation math strings Statement F1 Codeforces Round 780 (Div. 3) {1660} PROGRAMMING Codeforces Round #780 (Div. 3) Editorial
5599 Very Suspicious binary search brute force geometry implementation math Statement D Codeforces Round 788 (Div. 2) {1670} PROGRAMMING 2250.0 Tutorial 1700
34519 Most Similar Words brute force greedy implementation implementation math strings Statement C Codeforces Round 790 (Div. 4) {1676} PROGRAMMING Codeforces Round #790 (Div. 4) Editorial
731 Cute number binary search brute force implementation math Statement D Codeforces Round 796 (Div. 1) {1687} PROGRAMMING 1500.0 Editorial of Codeforces Round 796
6382 Difference Array brute force implementation math sortings Statement B Codeforces Round 808 (Div. 1) {1707} PROGRAMMING 750.0 104930
3449 Fibonacci Strings brute force data structures greedy implementation math number theory Statement B Codeforces Round 814 (Div. 1) {1718} PROGRAMMING 1250.0 Codeforces Round #814 (Div. 1, Div. 2) Editorial
17493 Bestie brute force constructive algorithms implementation math number theory Statement A Codeforces Round 830 (Div. 2) {1732} PROGRAMMING 750.0 108327 1000
964 Serval and Music Game brute force combinatorics implementation math number theory Statement E Codeforces Round 853 (Div. 2) {1789} PROGRAMMING 2000.0 Codeforces Round #853 (Div. 2) Editorial
26791 Premutation brute force implementation math Statement C Codeforces Round 847 (Div. 3) {1790} PROGRAMMING 111948
16184 Tear It Apart brute force implementation math strings Statement C Educational Codeforces Round 147 (Rated for Div. 2) {1821} PROGRAMMING 115296
2761 MEX of LCM binary search brute force data structures implementation math number theory two pointers Statement E Codeforces Round 879 (Div. 2) {1834} PROGRAMMING 2500.0 Codeforces Round #879 Editorial
8716 k-th equality brute force implementation math Statement A Codeforces Round 880 (Div. 1) {1835} PROGRAMMING 500.0 Codeforces Round 880 Editorial
8991 Rating System brute force data structures dp greedy implementation math Statement D Educational Codeforces Round 151 (Rated for Div. 2) {1845} PROGRAMMING 117791
25022 Rudolf and Snowflakes (simple version) binary search brute force implementation math Statement E1 Codeforces Round 883 (Div. 3) {1846} PROGRAMMING
8480 Rudolf and Snowflakes (hard version) binary search brute force implementation math Statement E2 Codeforces Round 883 (Div. 3) {1846} PROGRAMMING
24477 We Were Both Children brute force implementation math number theory Statement F Codeforces Round 886 (Div. 4) {1850} PROGRAMMING Codeforces Round #886 (Div. 4) Editorial
31471 Escalator Conversations brute force constructive algorithms implementation math Statement A Codeforces Round 888 (Div. 3) {1851} PROGRAMMING 118667
12999 The Walkway brute force greedy implementation math number theory Statement B Codeforces Round 893 (Div. 2) {1858} PROGRAMMING 1250.0 Codeforces Round #893 (Div. 2) Editorial 1500
1565 Interactive Game with Coloring brute force constructive algorithms graphs implementation interactive math trees Statement E Educational Codeforces Round 155 (Rated for Div. 2) {1879} PROGRAMMING 120773 2400
4546 Suspicious logarithms binary search brute force implementation math number theory Statement D Codeforces Round 907 (Div. 2) {1891} PROGRAMMING 1500.0
12991 Torn Lucky Ticket brute force dp hashing implementation math Statement C Educational Codeforces Round 157 (Rated for Div. 2) {1895} PROGRAMMING Educational Codeforces Round 157 Editorial
9745 Mathematical Problem brute force constructive algorithms implementation math strings Statement D Good Bye 2023 {1916} PROGRAMMING 1500.0
12341 Watering an Array brute force greedy implementation math Statement C Codeforces Round 917 (Div. 2) {1917} PROGRAMMING 1500.0 Editorial of Codeforces Round 917 (Div. 2)
4964 Sum of Progression brute force data structures implementation math Statement F Codeforces Round 920 (Div. 3) {1921} PROGRAMMING Editorial for Codeforces Round 920 (Div. 3)
3272 Space Harbour brute force data structures implementation math sortings Statement B Codeforces Round 921 (Div. 1) {1924} PROGRAMMING 1000.0 Codeforces Round 921 (Div. 1, Div. 2) Editorial
18856 LR-remainders brute force data structures implementation math Statement C Codeforces Round 927 (Div. 3) {1932} PROGRAMMING 126196
4466 No Palindromes brute force constructive algorithms greedy hashing implementation strings Statement E Codeforces Global Round 25 {1951} PROGRAMMING 2250.0 Codeforces Global Round 25 Editorial
1667 Nene vs. Monsters (Easy Version) brute force implementation math Statement E1 Codeforces Round 939 (Div. 2) {1956} PROGRAMMING 1500.0 [Editorial] Codeforces Round 939 (Div. 2)
1116 Nene vs. Monsters (Hard Version) brute force implementation math Statement E2 Codeforces Round 939 (Div. 2) {1956} PROGRAMMING 750.0 [Editorial] Codeforces Round 939 (Div. 2)
12422 Circle Perimeter binary search brute force dfs and similar geometry implementation math Statement F Codeforces Round 944 (Div. 4) {1971} PROGRAMMING Codeforces Round 944 (Div. 4) Editorial 1600
28470 Chess For Three brute force dp implementation math Statement A Codeforces Round 945 (Div. 2) {1973} PROGRAMMING 500.0 Editorial for Codeforces Round #945 (Div. 2) 900
9709 Beauty of the mountains brute force data structures implementation math number theory Statement D Codeforces Round 955 (Div. 2, with prizes from NEAR!) {1982} PROGRAMMING 1750.0 130839
19727 Collatz Conjecture brute force implementation math number theory Statement B Codeforces Round 955 (Div. 2, with prizes from NEAR!) {1982} PROGRAMMING 1000.0 130839
10254 Squaring brute force constructive algorithms data structures greedy implementation math number theory Statement C Codeforces Round 961 (Div. 2) {1995} PROGRAMMING 1750.0 Video Tutorial
26380 Diagonals brute force greedy implementation math Statement A Codeforces Round 961 (Div. 2) {1995} PROGRAMMING 500.0 Video Tutorial
24667 Three Brothers brute force implementation math Statement B Testing Round 19 (Div. 3) {2010} PROGRAMMING 800
12567 Cards Partition brute force greedy implementation math Statement A Codeforces Round 975 (Div. 1) {2018} PROGRAMMING 500.0 Editorial of Codeforces Round 975 (Div. 1, Div. 2)
1918 Digital Village (Easy Version) brute force data structures dp dsu graphs greedy implementation math shortest paths trees Statement E1 Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round) {2021} PROGRAMMING 1750.0 Codeforces Round #977 (Div. 2, based on COMPFEST 16 — Final Round) Editorial
7835 Attribute Checks brute force data structures dp implementation math Statement D Educational Codeforces Round 170 (Rated for Div. 2) {2025} PROGRAMMING Educational Codeforces Round 170 Editorial
20251 Alice's Adventures in ''Chess'' brute force implementation math strings Statement A Codeforces Round 986 (Div. 2) {2028} PROGRAMMING 500.0 Codeforces Round 986 (Div. 2) Editorial
2015 Permutations Harmony brute force combinatorics constructive algorithms greedy hashing implementation math Statement E Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2) {2034} PROGRAMMING 2000.0 Rayan 2024 Selection Round Editorial
5809 Yet Another Real Number Problem binary search brute force data structures dp greedy implementation math two pointers Statement D Codeforces Global Round 27 {2035} PROGRAMMING 1500.0 Codeforces Global Round 27 Editorial
22814 Kevin and Combination Lock brute force implementation math number theory Statement A Codeforces Global Round 28 {2048} PROGRAMMING 250.0 Tutorial
2259 Kevin and Binary String (Easy Version) binary search brute force data structures dp greedy implementation strings two pointers Statement F1 IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) {2061} PROGRAMMING 2000.0 IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) Editorial
14621 Kevin and Geometry brute force constructive algorithms data structures geometry greedy implementation math two pointers Statement B IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) {2061} PROGRAMMING 1000.0 IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) Editorial
10709 Kevin and Numbers brute force data structures greedy implementation math Statement D IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) {2061} PROGRAMMING 1500.0 IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) Editorial
19599 Robot Program brute force implementation math Statement B Educational Codeforces Round 175 (Rated for Div. 2) {2070} PROGRAMMING Video Tutorial
338 Maximum Polygon brute force data structures implementation math Statement D Codeforces Round 1008 (Div. 1) {2077} PROGRAMMING 2250.0 Codeforces Round 1008 (Div. 1, Div. 2) Editorial
711 Numbers and Strings brute force dfs and similar dp implementation math Statement F Educational Codeforces Round 178 (Rated for Div. 2) {2104} PROGRAMMING Educational Codeforces Round 178 Editorial
17794 Fibonacci Cubes brute force dp implementation math Statement B Educational Codeforces Round 179 (Rated for Div. 2) {2111} PROGRAMMING Educational Codeforces Round 179 Editorial
14575 Come a Little Closer brute force greedy implementation math Statement D Codeforces Round 1027 (Div. 3) {2114} PROGRAMMING 143268
30849 Redstone? brute force implementation math Statement A Codeforces Round 1044 (Div. 2) {2133} PROGRAMMING 500.0 Codeforces Round 1044 (Div. 2) Editorial
22777 Maximum Even Sum brute force greedy implementation math Statement C Codeforces Round 1047 (Div. 3) {2137} PROGRAMMING Codeforces Round 1047 (Div. 3) Editorial
633 Antiamuny and Slider Movement binary search brute force combinatorics implementation math Statement D Codeforces Round 1048 (Div. 1) {2138} PROGRAMMING 2500.0 Codeforces Round 1048 (Div. 1, Div. 2) Editorial
3246 Palindrome Flipping brute force constructive algorithms implementation strings Statement D Codeforces Round 1067 (Div. 2) {2158} PROGRAMMING 2000.0 Codeforces Round 1067 (Div. 2) Editorial
766 RReeppeettiittiioonn binary search brute force implementation math number theory Statement B Codeforces Round 1092 (Unrated, Div. 1, Based on THUPC 2026 — Finals) {2215} PROGRAMMING 1250.0
31369 The 67th Integer Problem brute force games implementation math Statement A Codeforces Round 1090 (Div. 4) {2218} PROGRAMMING