Codeforces problemset search & solutions
Exclude tags.

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 ... 10 11 12 >

Solved
Name
Tags
Solutions
Index
Contest
Type
Points
Tutorial
Rating Level
34490 Cinema Line greedy implementation Statement A Codeforces Round 202 (Div. 2) {349} PROGRAMMING Editorial for Codeforces Round #202 1200
15280 Color the Fence data structures dp greedy implementation Statement B Codeforces Round 202 (Div. 2) {349} PROGRAMMING Editorial for Codeforces Round #202 1700
17694 TL brute force greedy implementation Statement A Codeforces Round 203 (Div. 2) {350} PROGRAMMING Editorial Codeforces Round #203 (Div. 2) 1300
6864 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
29087 Jeff and Digits brute force implementation math Statement A Codeforces Round 204 (Div. 2) {352} PROGRAMMING 1100
18429 Jeff and Periods implementation sortings Statement B Codeforces Round 204 (Div. 2) {352} PROGRAMMING 1300
20209 Domino implementation math Statement A Codeforces Round 205 (Div. 2) {353} PROGRAMMING 9145 1300
5309 Find Maximum implementation math number theory Statement C Codeforces Round 205 (Div. 2) {353} PROGRAMMING 9145 1600
2447 Two Heaps combinatorics constructive algorithms greedy implementation math sortings Statement B Codeforces Round 205 (Div. 2) {353} PROGRAMMING 9145 1800
9894 Vasya and Digital Root constructive algorithms implementation Statement A Codeforces Round 206 (Div. 2) {355} PROGRAMMING Codeforces Round #206 — Editorial 1100
4976 Vasya and Public Transport greedy implementation Statement B Codeforces Round 206 (Div. 2) {355} PROGRAMMING Codeforces Round #206 — Editorial 1200
2120 Xenia and Hamming implementation math Statement B Codeforces Round 207 (Div. 1) {356} PROGRAMMING 9210 2000
1420 Compartments combinatorics constructive algorithms greedy implementation Statement C Codeforces Round 207 (Div. 1) {356} PROGRAMMING Codeforces Round #207: разбор задач 2200
605 Xenia and String Problem dp hashing implementation string suffix structures strings Statement E Codeforces Round 207 (Div. 1) {356} PROGRAMMING 9210 2800
7787 Group of Students brute force greedy implementation Statement A Codeforces Round 207 (Div. 2) {357} PROGRAMMING Codeforces Round #207: tutorial 1200
8604 Flag Day constructive algorithms implementation Statement B Codeforces Round 207 (Div. 2) {357} PROGRAMMING Codeforces Round #207: tutorial 1400
8199 Dima and Continuous Line brute force implementation Statement A Codeforces Round 208 (Div. 2) {358} PROGRAMMING Codeforces Round #208 (Div. 2) Разбор 1400
2352 Dima and Containers constructive algorithms greedy implementation Statement C Codeforces Round 208 (Div. 2) {358} PROGRAMMING Codeforces Round #208 (Div. 2) Разбор 2000
448 Dima and Kicks brute force dsu graphs implementation Statement E Codeforces Round 208 (Div. 2) {358} PROGRAMMING Codeforces Round #208 (Div. 2) Разбор 2600
9346 Table constructive algorithms greedy implementation Statement A Codeforces Round 209 (Div. 2) {359} PROGRAMMING Editorial Codeforces Round #209 (Div. 2) 1100
2150 Levko and Array Recovery greedy implementation Statement A Codeforces Round 210 (Div. 1) {360} PROGRAMMING Codeforces Round #210 editorial 1800
17975 Levko and Table constructive algorithms implementation Statement A Codeforces Round 210 (Div. 2) {361} PROGRAMMING Codeforces Round #210 editorial 800
14852 Petya and Staircases implementation sortings Statement B Codeforces Round 212 (Div. 2) {362} PROGRAMMING Codeforces Round #212 (Div. 2). Tutorial. Part 1. 1200
2053 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
11560 Soroban implementation Statement A Codeforces Round 211 (Div. 2) {363} PROGRAMMING 9537 1000
14254 Fixing Typos greedy implementation Statement C Codeforces Round 211 (Div. 2) {363} PROGRAMMING 9537 1400
255 Two Circles brute force data structures implementation Statement E Codeforces Round 211 (Div. 2) {363} PROGRAMMING 9537 2600
5005 Matrix combinatorics data structures implementation Statement A Codeforces Round 213 (Div. 1) {364} PROGRAMMING Codeforces Round #213 Editorial 1800
23515 Good Number implementation Statement A Codeforces Round 213 (Div. 2) {365} PROGRAMMING Codeforces Round #213 Editorial 1100
15518 The Fibonacci Segment implementation Statement B Codeforces Round 213 (Div. 2) {365} PROGRAMMING Codeforces Round #213 Editorial 1200
4857 Dima and Guards implementation Statement A Codeforces Round 214 (Div. 2) {366} PROGRAMMING Codeforces Round #214 (Div. 2) — Tutorial 1100
7203 Dima and To-do List brute force implementation Statement B Codeforces Round 214 (Div. 2) {366} PROGRAMMING Codeforces Round #214 (Div. 2) — Tutorial 1200
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
4572 Sereja and Algorithm data structures implementation Statement A Codeforces Round 215 (Div. 1) {367} PROGRAMMING Codeforces Round #215 — tutorial 1500
8080 Sereja and Coat Rack implementation Statement A Codeforces Round 215 (Div. 2) {368} PROGRAMMING Codeforces Round #215 — tutorial 1100
12365 Valera and Plates greedy implementation Statement A Codeforces Round 216 (Div. 2) {369} PROGRAMMING Editorial Codeforces Round #216 (Div. 2) 1000
6931 Valera and Contest constructive algorithms implementation math Statement B Codeforces Round 216 (Div. 2) {369} PROGRAMMING Editorial Codeforces Round #216 (Div. 2) 1500
2705 Berland Bingo implementation Statement B Codeforces Round 217 (Div. 2) {370} PROGRAMMING Codeforces Round #217 (Div. 2): tutorial 1300
726 Broken Monitor brute force constructive algorithms greedy implementation Statement D Codeforces Round 217 (Div. 2) {370} PROGRAMMING Codeforces Round #217 (Div. 2): tutorial 2100
6769 K-Periodic Array greedy implementation math Statement A Codeforces Round 218 (Div. 2) {371} PROGRAMMING Codeforces Round #218 (Div. 2): Tutorial 1200
6841 Vessels data structures dsu implementation trees Statement D Codeforces Round 218 (Div. 2) {371} PROGRAMMING Codeforces Round #218 (Div. 2): Tutorial 1900
11582 Collecting Beats is Fun implementation Statement A Codeforces Round 219 (Div. 2) {373} PROGRAMMING Codeforces Round #219 editorial 1000
2823 Making Sequences is Fun binary search implementation math Statement B Codeforces Round 219 (Div. 2) {373} PROGRAMMING Codeforces Round #219 editorial 1600
3135 Inna and Pink Pony greedy implementation Statement A Codeforces Round 220 (Div. 2) {374} PROGRAMMING Codeforces Round #220 (Div. 2) разбор 1800
3062 Inna and Dima dfs and similar dp graphs implementation Statement C Codeforces Round 220 (Div. 2) {374} PROGRAMMING Codeforces Round #220 (Div. 2) разбор 2000
248 Inna and Babies binary search data structures dsu geometry implementation Statement E Codeforces Round 220 (Div. 2) {374} PROGRAMMING Codeforces Round #220 (Div. 2) разбор 2600
5475 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
9989 Lever implementation math Statement A Codeforces Round 221 (Div. 2) {376} PROGRAMMING Codeforces Round #221 Tutorial 1000
7014 I.O.U. implementation Statement B Codeforces Round 221 (Div. 2) {376} PROGRAMMING Codeforces Round #221 Tutorial 1300
6256 Semifinals implementation sortings Statement B Codeforces Round 222 (Div. 2) {378} PROGRAMMING Codeforces Round #222 — Problem Analysis 1300
54476 New Year Candles implementation Statement A Good Bye 2013 {379} PROGRAMMING Tutorial Good Bye 2013 1100
7642 New Year Present constructive algorithms implementation Statement B Good Bye 2013 {379} PROGRAMMING Tutorial Good Bye 2013 1200
585 Sereja and Tree graphs implementation Statement B Codeforces Round 223 (Div. 1) {380} PROGRAMMING Codeforces Round #223 — Tutorial 2500
7428 Sereja and Stairs greedy implementation sortings Statement B Codeforces Round 223 (Div. 2) {381} PROGRAMMING Codeforces Round #223 — Tutorial 1100
94806 Sereja and Dima greedy implementation two pointers Statement A Codeforces Round 223 (Div. 2) {381} PROGRAMMING Codeforces Round #223 — Tutorial 800
13876 Ksenia and Pan Scales greedy implementation Statement A Codeforces Round 224 (Div. 2) {382} PROGRAMMING Codeforces Round #224 (Div. 2) Editorial 1100
8807 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
3836 Multitasking greedy implementation sortings two pointers Statement B Codeforces Round 225 (Div. 2) {384} PROGRAMMING Codeforces Round #225 — Editorial 1500
17452 Coder implementation Statement A Codeforces Round 225 (Div. 2) {384} PROGRAMMING Codeforces Round #225 — Editorial 800
17450 Bear and Raspberry brute force greedy implementation Statement A Codeforces Round 226 (Div. 2) {385} PROGRAMMING Codeforces Round #226 (Div. 2) — Editorial 1100
10977 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
10863 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
7856 Second-Price Auction implementation Statement A Testing Round 9 {386} PROGRAMMING 1100
2561 Fly, freebies, fly! binary search brute force implementation Statement B Testing Round 9 {386} PROGRAMMING 1500
586 Game with Points dp graphs implementation shortest paths Statement D Testing Round 9 {386} PROGRAMMING 2300
10663 George and Sleep implementation Statement A Codeforces Round 227 (Div. 2) {387} PROGRAMMING Editorial Codeforces Round #227 (Div. 2) 1000
2304 George and Number greedy implementation Statement C Codeforces Round 227 (Div. 2) {387} PROGRAMMING Editorial Codeforces Round #227 (Div. 2) 1700
2616 Fox and Minimal path bitmasks constructive algorithms graphs implementation math Statement B Codeforces Round 228 (Div. 1) {388} PROGRAMMING Codeforces Round #228 — Editorial 2000
7382 Fox and Cross greedy implementation Statement B Codeforces Round 228 (Div. 2) {389} PROGRAMMING Codeforces Round #228 — Editorial 1200
3776 Inna and Alarm Clock implementation Statement A Codeforces Round 229 (Div. 2) {390} PROGRAMMING 500.0
1314 Inna, Dima and Song implementation Statement B Codeforces Round 229 (Div. 2) {390} PROGRAMMING 1000.0
1817 Genetic Engineering implementation two pointers Statement A Rockethon 2014 {391} PROGRAMMING 3.0 Rockethon 2014 Editorial
2742 Counting Sticks brute force implementation Statement A Codeforces Round 231 (Div. 2) {394} PROGRAMMING 500.0
300 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)
2738 On Segment's Own Points implementation Statement A Codeforces Round 232 (Div. 2) {397} PROGRAMMING 500.0 Codeforces Round #232 Editorial (restored)
967 Cards constructive algorithms implementation Statement A Codeforces Round 233 (Div. 1) {398} PROGRAMMING 500.0 Codeforces Round #233 Editorial
4246 Pages implementation Statement A Codeforces Round 233 (Div. 2) {399} PROGRAMMING 500.0 Codeforces Round #233 Editorial
6955 Inna and Choose Options implementation Statement A Codeforces Round 234 (Div. 2) {400} PROGRAMMING Codeforces Round #234 (Div. 2) — Tutorial 1000
8702 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
3035 Inna and Huge Candy Matrix implementation math Statement C Codeforces Round 234 (Div. 2) {400} PROGRAMMING Codeforces Round #234 (Div. 2) — Tutorial 1500
4643 Sereja and Contests greedy implementation math Statement B Codeforces Round 235 (Div. 2) {401} PROGRAMMING Codeforces Round #235 (Div. 2) — Tutorial 1200
22057 Team constructive algorithms greedy implementation Statement C Codeforces Round 235 (Div. 2) {401} PROGRAMMING Codeforces Round #235 (Div. 2) — Tutorial 1400
17592 Vanya and Cards implementation math Statement A Codeforces Round 235 (Div. 2) {401} PROGRAMMING Codeforces Round #235 (Div. 2) — Tutorial 900
4014 Trees in a Row brute force implementation Statement B Codeforces Round 236 (Div. 2) {402} PROGRAMMING Editorial Codeforces Round #236 1400
280 Two Rooted Trees data structures implementation trees Statement E Codeforces Round 236 (Div. 1) {403} PROGRAMMING Editorial Codeforces Round #236 2900
26508 Valera and X implementation Statement A Codeforces Round 237 (Div. 2) {404} PROGRAMMING Codeforces Round #237 (Div. 2) Editorial 1100
3066 Marathon implementation math Statement B Codeforces Round 237 (Div. 2) {404} PROGRAMMING Codeforces Round #237 (Div. 2) Editorial 1500
2504 Minesweeper 1D dp implementation Statement D Codeforces Round 237 (Div. 2) {404} PROGRAMMING Codeforces Round #237 (Div. 2) Editorial 2200
666 Maze 1D binary search greedy implementation Statement E Codeforces Round 237 (Div. 2) {404} PROGRAMMING Codeforces Round #237 (Div. 2) Editorial 2700
131343 Gravity Flip greedy implementation sortings Statement A Codeforces Round 238 (Div. 2) {405} PROGRAMMING Codeforces Round #238 Tutorial 1000
4977 Unusual Product implementation math Statement C Codeforces Round 238 (Div. 2) {405} PROGRAMMING Codeforces Round #238 Tutorial 1600
3302 Toy Sum greedy implementation math Statement D Codeforces Round 238 (Div. 2) {405} PROGRAMMING Codeforces Round #238 Tutorial 1900
407 Hamming Triples implementation math two pointers Statement E Codeforces Round 238 (Div. 1) {406} PROGRAMMING Codeforces Round #238 Tutorial 2700
5219 Triangle brute force geometry implementation math Statement A Codeforces Round 239 (Div. 1) {407} PROGRAMMING Codeforces Round #239 Editorial 1700
7249 Long Path dp implementation Statement B Codeforces Round 239 (Div. 1) {407} PROGRAMMING Codeforces Round #239 Editorial 1800
1259 Curious Array brute force combinatorics implementation math Statement C Codeforces Round 239 (Div. 1) {407} PROGRAMMING Codeforces Round #239 Editorial 2500
10471 Garland implementation Statement B Codeforces Round 239 (Div. 2) {408} PROGRAMMING Codeforces Round #239 Editorial 1200
12148 Line to Cashier implementation Statement A Codeforces Round 239 (Div. 2) {408} PROGRAMMING Codeforces Round #239 Editorial 900
9599 A + B Strikes Back *special brute force constructive algorithms dsu implementation Statement H April Fools Day Contest 2014 {409} PROGRAMMING April Fools Day Contest 2014: editorial 1700
8234 Password Check implementation Statement A Coder-Strike 2014 - Qualification Round {411} PROGRAMMING Coder-Strike 2014: Qualification Round (Tutorial) 1800
1428 Multi-core Processor implementation Statement B Coder-Strike 2014 - Qualification Round {411} PROGRAMMING Coder-Strike 2014: Qualification Round (Tutorial) 2000
1306 Kicker implementation Statement C Coder-Strike 2014 - Qualification Round {411} PROGRAMMING Coder-Strike 2014: Qualification Round (Tutorial) 2100
5095 Poster greedy implementation Statement A Coder-Strike 2014 - Round 1 {412} PROGRAMMING Editorial of Coder-Strike 2014 Round 1 1000
4276 Pattern implementation strings Statement C Coder-Strike 2014 - Round 1 {412} PROGRAMMING Editorial of Coder-Strike 2014 Round 1 1300
949 E-mail Addresses implementation Statement E Coder-Strike 2014 - Round 1 {412} PROGRAMMING Editorial of Coder-Strike 2014 Round 1 1800
3044 Data Recovery implementation Statement A Coder-Strike 2014 - Round 2 {413} PROGRAMMING Editorial of Coder-Strike 2014 Round 2 1200
1868 Spyke Chatting implementation Statement B Coder-Strike 2014 - Round 2 {413} PROGRAMMING Editorial of Coder-Strike 2014 Round 2 1300
6742 Mashmokh and Tokens binary search greedy implementation math Statement B Codeforces Round 240 (Div. 2) {415} PROGRAMMING Codeforces Round #240 Editorial 1500
9692 Mashmokh and Lights implementation Statement A Codeforces Round 240 (Div. 2) {415} PROGRAMMING Codeforces Round #240 Editorial 900
9490 Art Union brute force dp implementation Statement B Codeforces Round 241 (Div. 2) {416} PROGRAMMING Codeforces Round #241 — editorial 1300
10193 Guess a number! greedy implementation two pointers Statement A Codeforces Round 241 (Div. 2) {416} PROGRAMMING Codeforces Round #241 — editorial 1400
8843 Booking System binary search dp greedy implementation Statement C Codeforces Round 241 (Div. 2) {416} PROGRAMMING Codeforces Round #241 — editorial 1600
1165 Population Size greedy implementation math Statement D Codeforces Round 241 (Div. 2) {416} PROGRAMMING Codeforces Round #241 — editorial 2300
2049 Crash implementation Statement B RCC 2014 Warmup (Div. 2) {417} PROGRAMMING RCC 2014 WarmUp Analysis 1400
5124 Football constructive algorithms graphs implementation Statement C RCC 2014 Warmup (Div. 2) {417} PROGRAMMING RCC 2014 WarmUp Analysis 1500
3449 Elimination dp implementation math Statement A RCC 2014 Warmup (Div. 2) {417} PROGRAMMING RCC 2014 WarmUp Analysis 1500
7207 Start Up implementation Statement A Coder-Strike 2014 - Finals (online edition, Div. 1) {420} PROGRAMMING Editorial Coder-Strike 2014 Finals 1100
1179 Online Meeting implementation Statement B Coder-Strike 2014 - Finals (online edition, Div. 1) {420} PROGRAMMING Editorial Coder-Strike 2014 Finals 1800
1437 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
6985 Pasha and Hamsters constructive algorithms implementation Statement A Coder-Strike 2014 - Finals (online edition, Div. 2) {421} PROGRAMMING Editorial Coder-Strike 2014 Finals 800
9378 Squats implementation Statement A Codeforces Round 242 (Div. 2) {424} PROGRAMMING Codeforces Round #242 (Div. 2) Editorial 1000
8535 Megacity binary search greedy implementation sortings Statement B Codeforces Round 242 (Div. 2) {424} PROGRAMMING Codeforces Round #242 (Div. 2) Editorial 1200
3985 Sereja and Mirroring implementation Statement B Codeforces Round 243 (Div. 2) {426} PROGRAMMING Codeforces Round #243 tutorial 1300
10095 Sereja and Mugs implementation Statement A Codeforces Round 243 (Div. 2) {426} PROGRAMMING Codeforces Round #243 tutorial 800
15633 Prison Transfer data structures implementation Statement B Codeforces Round 244 (Div. 2) {427} PROGRAMMING Codeforces Round #244 (Div. 2) Editorial 1100
1671 Police Patrol greedy implementation math ternary search Statement E Codeforces Round 244 (Div. 2) {427} PROGRAMMING Codeforces Round #244 (Div. 2) Editorial 2000
100871 Police Recruits implementation Statement A Codeforces Round 244 (Div. 2) {427} PROGRAMMING Codeforces Round #244 (Div. 2) Editorial 800
11853 Shower Line brute force implementation Statement B Codeforces Round 247 (Div. 2) {431} PROGRAMMING Editorial Codeforces Round #247 (Div. 2) 1200
30895 k-Tree dp implementation trees Statement C Codeforces Round 247 (Div. 2) {431} PROGRAMMING Editorial Codeforces Round #247 (Div. 2) 1600
68102 Black Square implementation Statement A Codeforces Round 247 (Div. 2) {431} PROGRAMMING Editorial Codeforces Round #247 (Div. 2) 700
12340 Football Kit brute force greedy implementation Statement B Codeforces Round 246 (Div. 2) {432} PROGRAMMING Codeforces Round #246 (Div. 2) Editorial 1200
71139 Choosing Teams greedy implementation sortings Statement A Codeforces Round 246 (Div. 2) {432} PROGRAMMING Codeforces Round #246 (Div. 2) Editorial 900
18166 Kitahara Haruki's Gift brute force implementation Statement A Codeforces Round 248 (Div. 2) {433} PROGRAMMING Codeforces Round #248 Editorial 1200
57218 Kuriyama Mirai's Stones dp implementation sortings Statement B Codeforces Round 248 (Div. 2) {433} PROGRAMMING Codeforces Round #248 Editorial 1200
2642 Ryouko's Memory Note implementation math sortings Statement C Codeforces Round 248 (Div. 2) {433} PROGRAMMING Codeforces Round #248 Editorial 1900
1345 Nanami's Digital Board dsu implementation Statement D Codeforces Round 248 (Div. 2) {433} PROGRAMMING Codeforces Round #248 Editorial 2300
11229 Queue on Bus Stop implementation Statement A Codeforces Round 249 (Div. 2) {435} PROGRAMMING Codeforces Round #249 (Div. 2) Editorial 1100
2759 Cardiogram implementation Statement C Codeforces Round 249 (Div. 2) {435} PROGRAMMING Codeforces Round #249 (Div. 2) Editorial 1600
3180 Om Nom and Spiders implementation math Statement B Zepto Code Rush 2014 {436} PROGRAMMING Zepto Code Rush 2014 — solutions A-D 1400
9458 The Child and Homework implementation Statement A Codeforces Round 250 (Div. 2) {437} PROGRAMMING 12513 1400
10573 The Child and Set bitmasks greedy implementation sortings Statement B Codeforces Round 250 (Div. 2) {437} PROGRAMMING 12513 1500
26806 Devu, the Singer and Churu, the Joker greedy implementation Statement A Codeforces Round 251 (Div. 2) {439} PROGRAMMING Codeforces Round #251 Editorial 1100
15110 Devu, the Dumb Guy implementation sortings Statement B Codeforces Round 251 (Div. 2) {439} PROGRAMMING Codeforces Round #251 Editorial 1200
4197 Devu and Partitioning of the Array brute force constructive algorithms implementation number theory Statement C Codeforces Round 251 (Div. 2) {439} PROGRAMMING Codeforces Round #251 Editorial 1700
9108 Forgotten Episode implementation Statement A Testing Round 10 {440} PROGRAMMING 1000
2360 Balancer greedy implementation Statement B Testing Round 10 {440} PROGRAMMING 1600
19506 Valera and Antique Items implementation Statement A Codeforces Round 252 (Div. 2) {441} PROGRAMMING Разбор Codeforces Round #252 (Div. 2) 1000
7570 Valera and Fruits greedy implementation Statement B Codeforces Round 252 (Div. 2) {441} PROGRAMMING 12615 1400
12080 Valera and Tubes constructive algorithms dfs and similar implementation Statement C Codeforces Round 252 (Div. 2) {441} PROGRAMMING 12615 1500
1269 Valera and Swaps constructive algorithms dsu graphs implementation math string suffix structures Statement D Codeforces Round 252 (Div. 2) {441} PROGRAMMING Разбор Codeforces Round #252 (Div. 2) 2300
2383 Borya and Hanabi bitmasks brute force implementation Statement A Codeforces Round 253 (Div. 1) {442} PROGRAMMING Codeforces #253 editorial 2000
4305 Kolya and Tandem Repeat brute force implementation strings Statement B Codeforces Round 253 (Div. 2) {443} PROGRAMMING Codeforces #253 editorial 1500
116730 Anton and Letters constructive algorithms implementation Statement A Codeforces Round 253 (Div. 2) {443} PROGRAMMING Codeforces #253 editorial 800
34428 DZY Loves Chessboard dfs and similar implementation Statement A Codeforces Round 254 (Div. 2) {445} PROGRAMMING Codeforces Round #254 Editorial 1200
13729 DZY Loves Sequences dp implementation two pointers Statement A Codeforces Round #FF (Div. 1) {446} PROGRAMMING Codeforces Round #FF(255) Editorial 1700
21153 DZY Loves Strings greedy implementation Statement B Codeforces Round #FF (Div. 2) {447} PROGRAMMING Codeforces Round #FF(255) Editorial 1000
10363 DZY Loves Hash implementation Statement A Codeforces Round #FF (Div. 2) {447} PROGRAMMING Codeforces Round #FF(255) Editorial 900
17729 Suffix Structures implementation strings Statement B Codeforces Round 256 (Div. 2) {448} PROGRAMMING Tutorial 1400
1973 Divisors brute force dfs and similar implementation number theory Statement E Codeforces Round 256 (Div. 2) {448} PROGRAMMING Codeforces Round #256 — Разбор 2500
26240 Rewards implementation Statement A Codeforces Round 256 (Div. 2) {448} PROGRAMMING Tutorial 900
46900 Jzzhu and Children implementation Statement A Codeforces Round 257 (Div. 2) {450} PROGRAMMING Codeforces Round #257 Editorial 1000
29315 Jzzhu and Sequences implementation math Statement B Codeforces Round 257 (Div. 2) {450} PROGRAMMING Codeforces Round #257 Editorial 1400
77635 Game With Sticks implementation Statement A Codeforces Round 258 (Div. 2) {451} PROGRAMMING Codeforces Round #258 Editorial 1000
54568 Sort the Array implementation sortings Statement B Codeforces Round 258 (Div. 2) {451} PROGRAMMING Codeforces Round #258 Editorial 1300
3606 Predict Outcome of the Game brute force implementation math Statement C Codeforces Round 258 (Div. 2) {451} PROGRAMMING Codeforces Round #258 Editorial 1700
8597 Eevee brute force implementation strings Statement A MemSQL Start[c]UP 2.0 - Round 1 {452} PROGRAMMING MemSQL Start[c]UP 2.0 Round 1 and 2 Editorials 1200
1670 Washer, Dryer, Folder greedy implementation Statement D MemSQL Start[c]UP 2.0 - Round 1 {452} PROGRAMMING MemSQL Start[c]UP 2.0 Round 1 and 2 Editorials 1900
19289 Little Pony and Sort by Shift implementation Statement B Codeforces Round 259 (Div. 2) {454} PROGRAMMING Codeforces Round #259 Editorial 1300
16296 Little Pony and Crystal Mine implementation Statement A Codeforces Round 259 (Div. 2) {454} PROGRAMMING Codeforces Round #259 Editorial 800
7175 A Lot of Games dfs and similar dp games implementation strings trees Statement B Codeforces Round 260 (Div. 1) {455} PROGRAMMING Codeforces Round #260 — Editorial 2100
48998 Pashmak and Flowers combinatorics implementation sortings Statement B Codeforces Round 261 (Div. 2) {459} PROGRAMMING Codeforces Round #261 Editorial 1300
37039 Pashmak and Garden implementation Statement A Codeforces Round 261 (Div. 2) {459} PROGRAMMING Codeforces Round #261 Editorial 1300
53127 Vasya and Socks brute force implementation math Statement A Codeforces Round 262 (Div. 2) {460} PROGRAMMING 13465 1000
13550 Little Dima and Equation brute force implementation math number theory Statement B Codeforces Round 262 (Div. 2) {460} PROGRAMMING 13465 1500
1428 Appleman and a Sheet of Paper data structures implementation Statement C Codeforces Round 263 (Div. 1) {461} PROGRAMMING Tutorial 2500
17985 Appleman and Easy Task brute force implementation Statement A Codeforces Round 263 (Div. 2) {462} PROGRAMMING Tutorial 1100
30401 Caisa and Pylons brute force implementation math Statement B Codeforces Round 264 (Div. 2) {463} PROGRAMMING CF 264 Div 2 Tutorial 1200
9632 Caisa and Sugar brute force implementation Statement A Codeforces Round 264 (Div. 2) {463} PROGRAMMING CF 264 Div 2 Tutorial 1300
9285 Gargari and Bishops greedy hashing implementation Statement C Codeforces Round 264 (Div. 2) {463} PROGRAMMING CF 264 Div 2 Tutorial 1800
7495 Gargari and Permutations dfs and similar dp graphs implementation Statement D Codeforces Round 264 (Div. 2) {463} PROGRAMMING CF 264 Div 2 Tutorial 2000
10944 Inbox (100500) implementation Statement B Codeforces Round 265 (Div. 2) {465} PROGRAMMING Codeforces Round #265 Editorial 1000
10513 inc ARG implementation Statement A Codeforces Round 265 (Div. 2) {465} PROGRAMMING Codeforces Round #265 Editorial 900
79585 Cheap Travel implementation Statement A Codeforces Round 266 (Div. 2) {466} PROGRAMMING Editorial Codeforces Round #266 (Div. 2) 1200
44003 Fedor and New Game bitmasks brute force constructive algorithms implementation Statement B Codeforces Round 267 (Div. 2) {467} PROGRAMMING Разбор задач 1200
17111 George and Job dp implementation Statement C Codeforces Round 267 (Div. 2) {467} PROGRAMMING Разбор задач 1700
162355 George and Accommodation implementation Statement A Codeforces Round 267 (Div. 2) {467} PROGRAMMING Разбор задач 800
125850 I Wanna Be the Guy greedy implementation Statement A Codeforces Round 268 (Div. 2) {469} PROGRAMMING Codeforces Round #268 Editorial 1000
13468 Chat Online implementation Statement B Codeforces Round 268 (Div. 2) {469} PROGRAMMING Codeforces Round #268 Editorial 1300
697 Crystal Ball Sequence *special implementation Statement A Surprise Language Round 7 {470} PROGRAMMING Surprise Language Round #7: editorial 1400
13837 MUH and Sticks implementation Statement A Codeforces Round 269 (Div. 2) {471} PROGRAMMING Codeforces Round #269 Editorial 1200
6237 MUH and Important Things implementation sortings Statement B Codeforces Round 269 (Div. 2) {471} PROGRAMMING Codeforces Round #269 Editorial 1400
153 Design Tutorial: Learn from a Game constructive algorithms implementation Statement E Codeforces Round 270 {472} PROGRAMMING 2700
57336 Keyboard implementation Statement A Codeforces Round 271 (Div. 2) {474} PROGRAMMING Codeforces Round #271 (Div. 2) Editorial 1000
66753 Worms binary search implementation Statement B Codeforces Round 271 (Div. 2) {474} PROGRAMMING Codeforces Round #271 (Div. 2) Editorial 1300
4987 Bayan Bus implementation Statement A Bayan 2015 Contest Warm Up {475} PROGRAMMING Bayan 2015 Contest Warm Up Editorial 1300
9428 Strongly Connected City brute force dfs and similar graphs implementation Statement B Bayan 2015 Contest Warm Up {475} PROGRAMMING Bayan 2015 Contest Warm Up Editorial 1400
53040 Dreamoon and Stairs implementation math Statement A Codeforces Round 272 (Div. 2) {476} PROGRAMMING Editorial 1100
27431 Initial Bet implementation Statement A Codeforces Round 273 (Div. 2) {478} PROGRAMMING Editorial 1200
8534 Towers brute force constructive algorithms greedy implementation sortings Statement B Codeforces Round 274 (Div. 2) {479} PROGRAMMING Codeforces Round #274: editorial 1400
5038 Long Jumps binary search greedy implementation Statement D Codeforces Round 274 (Div. 2) {479} PROGRAMMING Codeforces Round #274: editorial 1800
25146 Counterexample brute force implementation math number theory Statement A Codeforces Round 275 (Div. 2) {483} PROGRAMMING Codeforces Round #275 Editorial 1100
677 Strange Sorting implementation math Statement C Codeforces Round 276 (Div. 1) {484} PROGRAMMING Codeforces Round #276 — Editorial 2600
8848 Factory implementation math matrices Statement A Codeforces Round 276 (Div. 2) {485} PROGRAMMING Codeforces Round #276 — Editorial 1400
160900 Calculating Function implementation math Statement A Codeforces Round 277 (Div. 2) {486} PROGRAMMING Codeforces Round #277(Div. 2) Editorial 1100
19451 OR in Matrix greedy hashing implementation Statement B Codeforces Round 277 (Div. 2) {486} PROGRAMMING Codeforces Round #277(Div. 2) Editorial 1400
12490 Palindrome Transformation brute force greedy implementation Statement C Codeforces Round 277 (Div. 2) {486} PROGRAMMING Codeforces Round #277(Div. 2) Editorial 1700
3986 Fight the Monster binary search brute force implementation Statement A Codeforces Round 278 (Div. 1) {487} PROGRAMMING Tutorial 1900
10693 SwapSort greedy implementation sortings Statement A Codeforces Round 277.5 (Div. 2) {489} PROGRAMMING Codeforces Round #277.5 (Div. 2) Editorial [A-D for now] 1300
52993 Given Length and Sum of Digits... dp greedy implementation Statement C Codeforces Round 277.5 (Div. 2) {489} PROGRAMMING Codeforces Round #277.5 (Div. 2) Editorial [A-D for now] 1400
6516 Queue dsu implementation Statement B Codeforces Round 279 (Div. 2) {490} PROGRAMMING Codeforces Round #279 (Div. 2) Editorial 1500
1729 Restoring Increasing Sequence binary search brute force greedy implementation Statement E Codeforces Round 279 (Div. 2) {490} PROGRAMMING Codeforces Round #279 (Div. 2) Editorial 2100
73611 Team Olympiad greedy implementation sortings Statement A Codeforces Round 279 (Div. 2) {490} PROGRAMMING Codeforces Round #279 (Div. 2) Editorial 900
3593 Up the hill constructive algorithms implementation Statement A Testing Round 11 {491} PROGRAMMING 1200
93597 Vanya and Lanterns binary search implementation math sortings Statement B Codeforces Round 280 (Div. 2) {492} PROGRAMMING Разбор задач 1200
3337 Vanya and Computer Game binary search implementation math sortings Statement D Codeforces Round 280 (Div. 2) {492} PROGRAMMING Разбор задач 1800
65539 Vanya and Cubes implementation Statement A Codeforces Round 280 (Div. 2) {492} PROGRAMMING Разбор задач 900
6479 Vasya and Football implementation Statement A Codeforces Round 281 (Div. 2) {493} PROGRAMMING Codeforces Round #281 (Div. 2) Editorial 1400
14159 Vasya and Wrestling implementation Statement B Codeforces Round 281 (Div. 2) {493} PROGRAMMING Codeforces Round #281 (Div. 2) Editorial 1500
7604 Vasya and Basketball binary search brute force data structures implementation sortings two pointers Statement C Codeforces Round 281 (Div. 2) {493} PROGRAMMING Codeforces Round #281 (Div. 2) Editorial 1700
9160 Digital Counter implementation Statement A Codeforces Round 282 (Div. 2) {495} PROGRAMMING Tutorial 1200
17297 Minimum Difficulty brute force implementation math Statement A Codeforces Round 283 (Div. 2) {496} PROGRAMMING Codeforces Round #283: editorial (with bonuses!) 1000
6251 Secret Combination brute force constructive algorithms implementation Statement B Codeforces Round 283 (Div. 2) {496} PROGRAMMING 15208 1500
8231 Removing Columns brute force constructive algorithms implementation Statement C Codeforces Round 283 (Div. 2) {496} PROGRAMMING 15208 1600
45834 Lecture implementation strings Statement B Codeforces Round 284 (Div. 2) {499} PROGRAMMING 15353 1000
14852 Watching a movie greedy implementation Statement A Codeforces Round 284 (Div. 2) {499} PROGRAMMING 15353 1100
65045 New Year Transportation dfs and similar graphs implementation Statement A Good Bye 2014 {500} PROGRAMMING Tutorial 2 1100
6063 New Year Book Reading constructive algorithms greedy implementation math Statement C Good Bye 2014 {500} PROGRAMMING Tutorial 2 1600
24497 Contest implementation Statement A Codeforces Round 285 (Div. 2) {501} PROGRAMMING Tutorial 1000
987 Misha and Palindrome Degree binary search combinatorics implementation Statement E Codeforces Round 285 (Div. 2) {501} PROGRAMMING Tutorial 2800
6986 Mr. Kitayuta's Gift brute force implementation strings Statement A Codeforces Round 286 (Div. 2) {505} PROGRAMMING Tutorial 1200
22393 Amr and Music greedy implementation sortings Statement A Codeforces Round 287 (Div. 2) {507} PROGRAMMING Editorial 1100
4605 Guess Your Way Out! implementation math trees Statement C Codeforces Round 287 (Div. 2) {507} PROGRAMMING Editorial 1700
2208 The Maths Lecture dp implementation Statement D Codeforces Round 287 (Div. 2) {507} PROGRAMMING Editorial 2500
10028 Painting Pebbles constructive algorithms greedy implementation Statement B Codeforces Round 289 (Div. 2, ACM ICPC Rules) {509} PROGRAMMING Tutorial CodeForces Round 289 (Div.2) (Second Winter Computer Camp Selection 2015) 1300
2464 Sums of Digits dp greedy implementation Statement C Codeforces Round 289 (Div. 2, ACM ICPC Rules) {509} PROGRAMMING Tutorial CodeForces Round 289 (Div.2) (Second Winter Computer Camp Selection 2015) 2000
44874 Maximum in Table brute force implementation Statement A Codeforces Round 289 (Div. 2, ACM ICPC Rules) {509} PROGRAMMING Tutorial CodeForces Round 289 (Div.2) (Second Winter Computer Camp Selection 2015) 700
110369 Fox And Snake implementation Statement A Codeforces Round 290 (Div. 2) {510} PROGRAMMING Codeforces Round #290 Editorial 800
75119 Chewbaсca and Number greedy implementation Statement A Codeforces Round 291 (Div. 2) {514} PROGRAMMING Codeforces Round #291 (Div. 2) Editorial 1200
22894 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
8464 Tanya and Postcard greedy implementation strings Statement B Codeforces Round 293 (Div. 2) {518} PROGRAMMING Codeforces Round #293 (Div.2) Editorial 1500
6415 Anya and Smartphone constructive algorithms data structures implementation Statement C Codeforces Round 293 (Div. 2) {518} PROGRAMMING 1600
1082 Arthur and Questions greedy implementation math ternary search Statement E Codeforces Round 293 (Div. 2) {518} PROGRAMMING 2400
445 Pasha and Pipe binary search brute force combinatorics dp implementation Statement F Codeforces Round 293 (Div. 2) {518} PROGRAMMING Codeforces Round #293 (Div.2) Editorial 2800
20306 A and B and Chess implementation Statement A Codeforces Round 294 (Div. 2) {519} PROGRAMMING Editorial 1100
44497 A and B and Compilation Errors data structures implementation sortings Statement B Codeforces Round 294 (Div. 2) {519} PROGRAMMING 1200