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 ... 43 44 45 >

Solved
Name
Tags
Solutions
Index
Contest
Type
Points
Tutorial
Rating Level
319831 Theatre Square math Statement A Codeforces Beta Round 1 {1} PROGRAMMING 85 1300
26279 Spreadsheet implementation math Statement B Codeforces Beta Round 1 {1} PROGRAMMING 85 1700
6470 Ancient Berland Circus geometry math Statement C Codeforces Beta Round 1 {1} PROGRAMMING 85 2100
31182 Winner hashing implementation Statement A Codeforces Beta Round 2 {2} PROGRAMMING Codeforces Beta Round #2 - Tutorial 1600
12929 The least round way dp math Statement B Codeforces Beta Round 2 {2} PROGRAMMING Codeforces Beta Round #2 - Tutorial 2000
2018 Commentator problem geometry Statement C Codeforces Beta Round 2 {2} PROGRAMMING Codeforces Beta Round #2 - Tutorial 2600
22110 Shortest path of the king greedy shortest paths Statement A Codeforces Beta Round 3 {3} PROGRAMMING CF beta 3: разбор и эмоции 1200
8266 Tic-tac-toe brute force games implementation Statement C Codeforces Beta Round 3 {3} PROGRAMMING CF beta 3: разбор и эмоции 1700
5219 Lorry greedy sortings Statement B Codeforces Beta Round 3 {3} PROGRAMMING Codeforces Beta Round #3 — Tutorial 1900
3936 Least Cost Bracket Sequence greedy Statement D Codeforces Beta Round 3 {3} PROGRAMMING CF beta 3: разбор и эмоции 2500
686333 Watermelon brute force math Statement A Codeforces Beta Round 4 (Div. 2 Only) {4} PROGRAMMING 1200
107755 Registration System data structures hashing implementation Statement C Codeforces Beta Round 4 (Div. 2 Only) {4} PROGRAMMING 1500
29433 Before an Exam constructive algorithms greedy Statement B Codeforces Beta Round 4 (Div. 2 Only) {4} PROGRAMMING 1500
12090 Mysterious Present dp sortings Statement D Codeforces Beta Round 4 (Div. 2 Only) {4} PROGRAMMING 1800
11096 Chat Servers Outgoing Traffic implementation Statement A Codeforces Beta Round 5 {5} PROGRAMMING C, D и E с CBR5 - разбор 1200
6758 Center Alignment implementation strings Statement B Codeforces Beta Round 5 {5} PROGRAMMING C, D и E с CBR5 - разбор 1400
18047 Longest Regular Bracket Sequence constructive algorithms data structures dp greedy sortings strings Statement C Codeforces Beta Round 5 {5} PROGRAMMING C, D и E с CBR5 - разбор 1900
1935 Follow Traffic Rules implementation math Statement D Codeforces Beta Round 5 {5} PROGRAMMING C, D и E с CBR5 - разбор 2100
2486 Bindian Signalizing data structures Statement E Codeforces Beta Round 5 {5} PROGRAMMING C, D и E с CBR5 - разбор 2400
22825 Triangle brute force geometry Statement A Codeforces Beta Round 6 (Div. 2 Only) {6} PROGRAMMING Round #6 - Tutorial (A,B,C,E) 1300
14814 President's Office implementation Statement B Codeforces Beta Round 6 (Div. 2 Only) {6} PROGRAMMING Round #6 - Tutorial (A,B,C,E) 1400
17445 Alice, Bob and Chocolate greedy two pointers Statement C Codeforces Beta Round 6 (Div. 2 Only) {6} PROGRAMMING Round #6 - Tutorial (A,B,C,E) 1500
3862 Exposition binary search data structures dsu trees two pointers Statement E Codeforces Beta Round 6 (Div. 2 Only) {6} PROGRAMMING Beta Round #6 - Разбор задач 1900
2278 Lizards and Basements 2 brute force dp Statement D Codeforces Beta Round 6 (Div. 2 Only) {6} PROGRAMMING Beta Round #6 - Разбор задач 2100
8020 Kalevitch and Chess brute force constructive algorithms Statement A Codeforces Beta Round 7 {7} PROGRAMMING 1300
2953 Memory Manager implementation Statement B Codeforces Beta Round 7 {7} PROGRAMMING 1700
5473 Line math number theory Statement C Codeforces Beta Round 7 {7} PROGRAMMING 1800
4466 Palindrome Degree hashing strings Statement D Codeforces Beta Round 7 {7} PROGRAMMING 2200
777 Defining Macros dp expression parsing implementation Statement E Codeforces Beta Round 7 {7} PROGRAMMING 2500
6724 Train and Peter strings Statement A Codeforces Beta Round 8 {8} PROGRAMMING Codeforces Beta Round #8 Tutorial 1400
4964 Obsession with Robots constructive algorithms graphs implementation Statement B Codeforces Beta Round 8 {8} PROGRAMMING Codeforces Beta Round #8 Tutorial 1500
4210 Looking for Order bitmasks dp Statement C Codeforces Beta Round 8 {8} PROGRAMMING Codeforces Beta Round #8 Tutorial 2000
580 Two Friends binary search geometry Statement D Codeforces Beta Round 8 {8} PROGRAMMING Codeforces Beta Round #8 Tutorial 2600
758 Beads dp graphs Statement E Codeforces Beta Round 8 {8} PROGRAMMING Codeforces Beta Round #8 Tutorial 2600
69600 Die Roll math probabilities Statement A Codeforces Beta Round 9 (Div. 2 Only) {9} PROGRAMMING Codeforces Beta Round #9 tutorial 1000
6184 Running Student brute force geometry implementation Statement B Codeforces Beta Round 9 (Div. 2 Only) {9} PROGRAMMING Codeforces Beta Round #9 tutorial 1500
14343 Hexadecimal's Numbers brute force implementation math Statement C Codeforces Beta Round 9 (Div. 2 Only) {9} PROGRAMMING Codeforces Beta Round #9 tutorial 1500
4499 How many trees? combinatorics divide and conquer dp Statement D Codeforces Beta Round 9 (Div. 2 Only) {9} PROGRAMMING Codeforces Beta Round #9 tutorial 2000
1162 Interestring graph and Apples dfs and similar dsu graphs Statement E Codeforces Beta Round 9 (Div. 2 Only) {9} PROGRAMMING Codeforces Beta Round #9 tutorial 2300
8341 Power Consumption Calculation implementation Statement A Codeforces Beta Round 10 {10} PROGRAMMING 1100
2052 Cinema Cashier dp implementation Statement B Codeforces Beta Round 10 {10} PROGRAMMING 1600
1698 Digital Root number theory Statement C Codeforces Beta Round 10 {10} PROGRAMMING 2000
924 Greedy Change constructive algorithms Statement E Codeforces Beta Round 10 {10} PROGRAMMING 2600
5622 LCIS dp Statement D Codeforces Beta Round 10 {10} PROGRAMMING 2700
15484 Increasing Sequence constructive algorithms implementation math Statement A Codeforces Beta Round 11 {11} PROGRAMMING 1100
5703 Jumping Jack math Statement B Codeforces Beta Round 11 {11} PROGRAMMING 1700
691 How Many Squares? implementation Statement C Codeforces Beta Round 11 {11} PROGRAMMING 2200
6378 A Simple Task bitmasks dp graphs Statement D Codeforces Beta Round 11 {11} PROGRAMMING 2200
439 Forward, march! binary search dp greedy Statement E Codeforces Beta Round 11 {11} PROGRAMMING 2800
15413 Super Agent implementation Statement A Codeforces Beta Round 12 (Div 2 Only) {12} PROGRAMMING 1100
7349 Fruits greedy implementation sortings Statement C Codeforces Beta Round 12 (Div 2 Only) {12} PROGRAMMING 1400
9665 Correct Solution? implementation sortings Statement B Codeforces Beta Round 12 (Div 2 Only) {12} PROGRAMMING 1400
1450 Start of the session constructive algorithms Statement E Codeforces Beta Round 12 (Div 2 Only) {12} PROGRAMMING 2100
2883 Ball data structures sortings Statement D Codeforces Beta Round 12 (Div 2 Only) {12} PROGRAMMING 2400
9435 Numbers implementation math Statement A Codeforces Beta Round 13 {13} PROGRAMMING Codeforces Beta Round #13 editorial 1200
1123 Letter A geometry implementation Statement B Codeforces Beta Round 13 {13} PROGRAMMING Codeforces Beta Round #13 editorial 2000
5467 Sequence dp sortings Statement C Codeforces Beta Round 13 {13} PROGRAMMING Codeforces Beta Round #13 editorial 2200
734 Triangles dp geometry Statement D Codeforces Beta Round 13 {13} PROGRAMMING Codeforces Beta Round #13 editorial 2500
7935 Holes data structures dsu Statement E Codeforces Beta Round 13 {13} PROGRAMMING Codeforces Beta Round #13 editorial 2700
12381 Letter implementation Statement A Codeforces Beta Round 14 (Div. 2) {14} PROGRAMMING Codeforces Beta Round #14 tutorial 1100
8296 Young Photographer implementation Statement B Codeforces Beta Round 14 (Div. 2) {14} PROGRAMMING Codeforces Beta Round #14 tutorial 1400
3857 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
2058 Camels dp Statement E Codeforces Beta Round 14 (Div. 2) {14} PROGRAMMING Codeforces Beta Round #14 tutorial 2000
5280 Two Paths dfs and similar dp graphs shortest paths trees two pointers Statement D Codeforces Beta Round 14 (Div. 2) {14} PROGRAMMING Codeforces Beta Round #14 tutorial 2100
4493 Cottage Village implementation sortings Statement A Codeforces Beta Round 15 {15} PROGRAMMING Codeforces Beta #15 Tutorial (Incomplete) 1400
1680 Laser math Statement B Codeforces Beta Round 15 {15} PROGRAMMING Codeforces Beta #15 Tutorial (Incomplete) 1700
2837 Industrial Nim games Statement C Codeforces Beta Round 15 {15} PROGRAMMING Codeforces Beta #15 Tutorial (Incomplete) 2000
913 Map data structures implementation sortings Statement D Codeforces Beta Round 15 {15} PROGRAMMING Короткий разбор задач CF #15 2500
673 Triangles combinatorics dp Statement E Codeforces Beta Round 15 {15} PROGRAMMING Codeforces Beta #15 Tutorial (Incomplete) 2600
17224 Flag implementation Statement A Codeforces Beta Round 16 (Div. 2 Only) {16} PROGRAMMING Codeforces Beta Round #16 Tutorial 1100
20744 Burglar and Matches greedy implementation sortings Statement B Codeforces Beta Round 16 (Div. 2 Only) {16} PROGRAMMING Codeforces Beta Round #16 Tutorial 1300
5414 Monitor binary search number theory Statement C Codeforces Beta Round 16 (Div. 2 Only) {16} PROGRAMMING Codeforces Beta Round #16 Tutorial 1800
1864 Logging implementation strings Statement D Codeforces Beta Round 16 (Div. 2 Only) {16} PROGRAMMING Codeforces Beta Round #16 Tutorial 2000
6532 Fish bitmasks dp probabilities Statement E Codeforces Beta Round 16 (Div. 2 Only) {16} PROGRAMMING Codeforces Beta Round #16 Tutorial 2100
21372 Noldbach problem brute force math number theory Statement A Codeforces Beta Round 17 {17} PROGRAMMING Codeforces Beta Round #17 Tutorial 1100
6050 Hierarchy dfs and similar dsu greedy shortest paths Statement B Codeforces Beta Round 17 {17} PROGRAMMING Codeforces Beta Round #17 Tutorial 1600
1326 Notepad number theory Statement D Codeforces Beta Round 17 {17} PROGRAMMING Codeforces Beta Round #17 Tutorial 2300
1025 Balance dp Statement C Codeforces Beta Round 17 {17} PROGRAMMING Codeforces Beta Round #17 Tutorial 2500
1990 Palisection strings Statement E Codeforces Beta Round 17 {17} PROGRAMMING Codeforces Beta Round #17 Tutorial 2900
15411 Stripe data structures implementation Statement C Codeforces Beta Round 18 (Div. 2 Only) {18} PROGRAMMING Codeforces Beta Round #18(Div. 2) Tutorial 1400
6945 Triangle brute force geometry Statement A Codeforces Beta Round 18 (Div. 2 Only) {18} PROGRAMMING Codeforces Beta Round #18(Div. 2) Tutorial 1600
2428 Platforms brute force math Statement B Codeforces Beta Round 18 (Div. 2 Only) {18} PROGRAMMING Codeforces Beta Round #18(Div. 2) Tutorial 1700
1290 Seller Bob brute force dp greedy Statement D Codeforces Beta Round 18 (Div. 2 Only) {18} PROGRAMMING Codeforces Beta Round #18(Div. 2) Tutorial 2100
1269 Flag 2 dp Statement E Codeforces Beta Round 18 (Div. 2 Only) {18} PROGRAMMING Codeforces Beta Round #18(Div. 2) Tutorial 2400
3141 World Football Cup implementation Statement A Codeforces Beta Round 19 {19} PROGRAMMING Code Force Beta Round 19 Solution 1400
5821 Checkout Assistant dp Statement B Codeforces Beta Round 19 {19} PROGRAMMING Code Force Beta Round 19 Solution 1900
1321 Deletion of Repeats greedy hashing string suffix structures Statement C Codeforces Beta Round 19 {19} PROGRAMMING Code Force Beta Round 19 Solution 2200
3167 Points data structures Statement D Codeforces Beta Round 19 {19} PROGRAMMING Code Force Beta Round 19 Solution 2800
2512 Fairy dfs and similar divide and conquer dsu Statement E Codeforces Beta Round 19 {19} PROGRAMMING Code Force Beta Round 19 Solution 2800
46741 Dijkstra? graphs shortest paths Statement C Codeforces Alpha Round 20 (Codeforces format) {20} PROGRAMMING 2100
4795 Equation math Statement B Codeforces Alpha Round 20 (Codeforces format) {20} PROGRAMMING 2600
7120 BerOS file system implementation Statement A Codeforces Alpha Round 20 (Codeforces format) {20} PROGRAMMING 2600
2534 Stripe 2 binary search dp sortings Statement C Codeforces Alpha Round 21 (Codeforces format) {21} PROGRAMMING 2300
2270 Jabber ID implementation strings Statement A Codeforces Alpha Round 21 (Codeforces format) {21} PROGRAMMING 2300
1583 Intersection implementation math Statement B Codeforces Alpha Round 21 (Codeforces format) {21} PROGRAMMING 2300
1292 Traveling Graph bitmasks graph matchings graphs Statement D Codeforces Alpha Round 21 (Codeforces format) {21} PROGRAMMING 2500
27058 Second Order Statistics brute force Statement A Codeforces Beta Round 22 (Div. 2 Only) {22} PROGRAMMING Codeforces Beta Round #22 Tutorial 1000
4781 Bargaining Table brute force dp Statement B Codeforces Beta Round 22 (Div. 2 Only) {22} PROGRAMMING Codeforces Beta Round #22 Tutorial 1600
3801 System Administrator graphs Statement C Codeforces Beta Round 22 (Div. 2 Only) {22} PROGRAMMING Codeforces Beta Round #22 Tutorial 1700
3408 Segments greedy sortings Statement D Codeforces Beta Round 22 (Div. 2 Only) {22} PROGRAMMING Codeforces Beta Round #22 Tutorial 1900
2076 Scheme dfs and similar graphs trees Statement E Codeforces Beta Round 22 (Div. 2 Only) {22} PROGRAMMING Codeforces Beta Round #22 Tutorial 2400
6301 You're Given a String... brute force greedy Statement A Codeforces Beta Round 23 {23} PROGRAMMING Codeforces Beta Round #23 tutorial 1200
3857 Party constructive algorithms graphs math Statement B Codeforces Beta Round 23 {23} PROGRAMMING Codeforces Beta Round #23 tutorial 1600
725 Tree dp Statement E Codeforces Beta Round 23 {23} PROGRAMMING Codeforces Beta Round #23 tutorial 2500
1690 Oranges and Apples constructive algorithms sortings Statement C Codeforces Beta Round 23 {23} PROGRAMMING Codeforces Beta Round #23 tutorial 2500
380 Tetragon geometry math Statement D Codeforces Beta Round 23 {23} PROGRAMMING Codeforces Beta Round #23 tutorial 2600
6842 Ring road graphs Statement A Codeforces Beta Round 24 {24} PROGRAMMING Codeforces Beta Round #24 solutions 1400
2031 F1 Champions implementation Statement B Codeforces Beta Round 24 {24} PROGRAMMING Codeforces Beta Round #24 solutions 1500
1443 Sequence of points geometry implementation math Statement C Codeforces Beta Round 24 {24} PROGRAMMING Codeforces Beta Round #24 solutions 1800
1023 Berland collider binary search Statement E Codeforces Beta Round 24 {24} PROGRAMMING Codeforces Beta Round #24 solutions 2300
2641 Broken robot dp probabilities Statement D Codeforces Beta Round 24 {24} PROGRAMMING Codeforces Beta Round #24 solutions 2400
11247 Phone numbers implementation Statement B Codeforces Beta Round 25 (Div. 2 Only) {25} PROGRAMMING Codeforces Beta Round #25 Solution Analysis 1100
103756 IQ test brute force Statement A Codeforces Beta Round 25 (Div. 2 Only) {25} PROGRAMMING Codeforces Beta Round #25 Solution Analysis 1300
7999 Roads in Berland graphs shortest paths Statement C Codeforces Beta Round 25 (Div. 2 Only) {25} PROGRAMMING Codeforces Beta Round #25 Solution Analysis 1800
15561 Roads not only in Berland dsu graphs trees Statement D Codeforces Beta Round 25 (Div. 2 Only) {25} PROGRAMMING Codeforces Beta Round #25 Solution Analysis 1900
3155 Test hashing strings Statement E Codeforces Beta Round 25 (Div. 2 Only) {25} PROGRAMMING Codeforces Beta Round #25 Solution Analysis 2300
1012 Parquet combinatorics constructive algorithms Statement C Codeforces Beta Round 26 (Codeforces format) {26} PROGRAMMING Разбор Codeforces Beta Round #26 (ещё один) 2200
25805 Regular Bracket Sequence greedy Statement B Codeforces Beta Round 26 (Codeforces format) {26} PROGRAMMING Разбор Codeforces Beta Round #26 (ещё один) 2300
42646 Almost Prime number theory Statement A Codeforces Beta Round 26 (Codeforces format) {26} PROGRAMMING Codeforces Beta Round #26 tutorial 2400
413 Multithreading constructive algorithms Statement E Codeforces Beta Round 26 (Codeforces format) {26} PROGRAMMING Codeforces Beta Round #26 tutorial 2700
930 Tickets combinatorics math probabilities Statement D Codeforces Beta Round 26 (Codeforces format) {26} PROGRAMMING Разбор Codeforces Beta Round #26 (ещё один) 2800
22991 Next Test implementation sortings Statement A Codeforces Beta Round 27 (Codeforces format, Div. 2) {27} PROGRAMMING Solution of ABC @ Round#27 1900
3063 Unordered Subsequence constructive algorithms greedy Statement C Codeforces Beta Round 27 (Codeforces format, Div. 2) {27} PROGRAMMING Solution of ABC @ Round#27 2000
5882 Tournament bitmasks brute force dfs and similar greedy Statement B Codeforces Beta Round 27 (Codeforces format, Div. 2) {27} PROGRAMMING Codeforces Beta #27 - Tutorial 2000
4905 Number With The Given Amount Of Divisors brute force dp number theory Statement E Codeforces Beta Round 27 (Codeforces format, Div. 2) {27} PROGRAMMING Solution of ABC @ Round#27 2100
3090 Ring Road 2 2-sat dfs and similar dsu graphs Statement D Codeforces Beta Round 27 (Codeforces format, Div. 2) {27} PROGRAMMING Solution of ABC @ Round#27 2300
5514 pSort dfs and similar dsu graphs Statement B Codeforces Beta Round 28 (Codeforces format) {28} PROGRAMMING Codeforces Beta Round #28 (Разбор задач A и B) 1600
928 Bender Problem implementation Statement A Codeforces Beta Round 28 (Codeforces format) {28} PROGRAMMING Codeforces Beta Round #28 (Разбор задач A и B) 2200
676 Don't fear, DravDe is kind binary search data structures dp hashing Statement D Codeforces Beta Round 28 (Codeforces format) {28} PROGRAMMING Codeforces Beta Round #28 (Разбор задач A и B) 2600
109 DravDe saves the world geometry math Statement E Codeforces Beta Round 28 (Codeforces format) {28} PROGRAMMING Codeforces Round 28 - tutorial 2700
1283 Bath Queue combinatorics dp probabilities Statement C Codeforces Beta Round 28 (Codeforces format) {28} PROGRAMMING Codeforces Beta Round #28 (Разбор задач A и B) 2700
8269 Spit Problem brute force Statement A Codeforces Beta Round 29 (Div. 2, Codeforces format) {29} PROGRAMMING My solution @ Round #29, [without Problem E] 1000
3348 Traffic Lights implementation Statement B Codeforces Beta Round 29 (Div. 2, Codeforces format) {29} PROGRAMMING My solution @ Round #29, [without Problem E] 1500
6469 Mail Stamps data structures dfs and similar graphs implementation Statement C Codeforces Beta Round 29 (Div. 2, Codeforces format) {29} PROGRAMMING My solution @ Round #29, [without Problem E] 1700
2937 Ant on the Tree constructive algorithms dfs and similar trees Statement D Codeforces Beta Round 29 (Div. 2, Codeforces format) {29} PROGRAMMING My solution @ Round #29, [without Problem E] 1900
1131 Quarrel graphs shortest paths Statement E Codeforces Beta Round 29 (Div. 2, Codeforces format) {29} PROGRAMMING My solution @ Round #29, [without Problem E] 2400
3983 Accounting brute force math Statement A Codeforces Beta Round 30 (Codeforces format) {30} PROGRAMMING Codeforces Beta Round #30. Разбор C 1500
1386 Codeforces World Finals implementation Statement B Codeforces Beta Round 30 (Codeforces format) {30} PROGRAMMING Codeforces Beta Round #30. Разбор C 1700
2391 Shooting Gallery dp probabilities Statement C Codeforces Beta Round 30 (Codeforces format) {30} PROGRAMMING Codeforces Beta Round #30. Разбор C 1800
498 King's Problem? geometry greedy Statement D Codeforces Beta Round 30 (Codeforces format) {30} PROGRAMMING Codeforces Beta Round #30. Разбор C 2600
920 Tricky and Clever Password binary search constructive algorithms data structures greedy hashing strings Statement E Codeforces Beta Round 30 (Codeforces format) {30} PROGRAMMING Codeforces Beta Round #30. Tutorial for problem A 2700
12640 Worms Evolution implementation Statement A Codeforces Beta Round 31 (Div. 2, Codeforces format) {31} PROGRAMMING 1200
4741 Sysadmin Bob greedy implementation strings Statement B Codeforces Beta Round 31 (Div. 2, Codeforces format) {31} PROGRAMMING 1500
2026 Schedule implementation Statement C Codeforces Beta Round 31 (Div. 2, Codeforces format) {31} PROGRAMMING 1700
1228 Chocolate dfs and similar implementation Statement D Codeforces Beta Round 31 (Div. 2, Codeforces format) {31} PROGRAMMING 2000
1296 TV Game dp Statement E Codeforces Beta Round 31 (Div. 2, Codeforces format) {31} PROGRAMMING 2200
2559 Flea math Statement C Codeforces Beta Round 32 (Div. 2, Codeforces format) {32} PROGRAMMING Beta Round 32 1700
1491 Constellation implementation Statement D Codeforces Beta Round 32 (Div. 2, Codeforces format) {32} PROGRAMMING Beta Round 32 1700
423 Hide-and-Seek geometry implementation Statement E Codeforces Beta Round 32 (Div. 2, Codeforces format) {32} PROGRAMMING 2300
14881 Reconnaissance brute force Statement A Codeforces Beta Round 32 (Div. 2, Codeforces format) {32} PROGRAMMING Beta Round 32 800
79641 Borze expression parsing implementation Statement B Codeforces Beta Round 32 (Div. 2, Codeforces format) {32} PROGRAMMING Beta Round 32 900
4848 What is for dinner? greedy implementation Statement A Codeforces Beta Round 33 (Codeforces format) {33} PROGRAMMING Codeforces Beta Round #33. Analysis of problem A 1300
3577 Wonderful Randomized Sum greedy Statement C Codeforces Beta Round 33 (Codeforces format) {33} PROGRAMMING Codeforces Beta Round #33 (personal participation commentaries) 1800
5720 String Problem shortest paths Statement B Codeforces Beta Round 33 (Codeforces format) {33} PROGRAMMING Codeforces Beta Round #33 (personal participation commentaries) 1800
1558 Knights geometry graphs shortest paths sortings Statement D Codeforces Beta Round 33 (Codeforces format) {33} PROGRAMMING Codeforces Beta Round #33. Analysis of problem A 2000
152 Helper Statement E Codeforces Beta Round 33 (Codeforces format) {33} PROGRAMMING Codeforces Beta Round #33. Analysis of problem A 2500
65943 Sale greedy sortings Statement B Codeforces Beta Round 34 (Div. 2) {34} PROGRAMMING Codeforces Beta Round #34 (Div. 2) Разбор 1000
34647 Reconnaissance 2 implementation Statement A Codeforces Beta Round 34 (Div. 2) {34} PROGRAMMING Codeforces Beta Round #34 (Div. 2) Разбор 1100
4764 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
6484 Road Map dfs and similar graphs Statement D Codeforces Beta Round 34 (Div. 2) {34} PROGRAMMING Codeforces Beta Round #34 (Div. 2) Разбор 1700
652 Collisions brute force implementation math Statement E Codeforces Beta Round 34 (Div. 2) {34} PROGRAMMING Codeforces Beta Round #34 (Div. 2) Разбор 2100
7574 Shell Game implementation Statement A Codeforces Beta Round 35 (Div. 2) {35} PROGRAMMING 1100
8602 Fire Again brute force dfs and similar shortest paths Statement C Codeforces Beta Round 35 (Div. 2) {35} PROGRAMMING 1600
1194 Warehouse implementation Statement B Codeforces Beta Round 35 (Div. 2) {35} PROGRAMMING 1700
3856 Animals dp greedy Statement D Codeforces Beta Round 35 (Div. 2) {35} PROGRAMMING 1700
879 Parade data structures sortings Statement E Codeforces Beta Round 35 (Div. 2) {35} PROGRAMMING 2300
3542 Extra-terrestrial Intelligence implementation Statement A Codeforces Beta Round 36 {36} PROGRAMMING Codeforces Beta Round #36 1400
2034 Fractal implementation Statement B Codeforces Beta Round 36 {36} PROGRAMMING Codeforces Beta Round #36 1600
769 New Game with a Chess Piece games Statement D Codeforces Beta Round 36 {36} PROGRAMMING Codeforces Beta Round #36 2200
380 Bowls geometry implementation Statement C Codeforces Beta Round 36 {36} PROGRAMMING Codeforces Beta Round #36 2200
614 Two Paths constructive algorithms dsu graphs implementation Statement E Codeforces Beta Round 36 {36} PROGRAMMING Codeforces Beta Round #36 (Problem E solution) 2500
27655 Towers sortings Statement A Codeforces Beta Round 37 {37} PROGRAMMING Codeforces Beta Round #37 (Tutorial) 1100
1091 Computer Game greedy implementation Statement B Codeforces Beta Round 37 {37} PROGRAMMING Codeforces Beta Round #37 (Tutorial) 1800
2142 Old Berland Language data structures greedy trees Statement C Codeforces Beta Round 37 {37} PROGRAMMING Codeforces Beta Round #37 (Tutorial) 1900
553 Lesson Timetable combinatorics dp math Statement D Codeforces Beta Round 37 {37} PROGRAMMING Codeforces Beta Round #37 (Tutorial) 2300
678 Trial for Chief graphs greedy shortest paths Statement E Codeforces Beta Round 37 {37} PROGRAMMING Codeforces Beta Round #37 (Tutorial) 2600
4026 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
2559 Blinds brute force Statement C 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 C) 1400
2997 Let's Go Rolling! dp sortings Statement E 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) 1800
1075 Vasya the Architect implementation Statement D 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 C) 2000
446 Smart Boy dp games strings Statement F 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) 2200
807 Queue data structures Statement G 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 C) 2300
445 The Great Marathon dp Statement H 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 C) 2500
26436 Army implementation Statement A 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) 900
4658 Cubical Planet math Statement D School Team Contest 1 (Winter Computer School 2010/11) {39} PROGRAMMING School Team Contest #1 (Winter Computer School 2010/11): Problem K Tutorial 1100
3095 Company Income Growth greedy Statement B School Team Contest 1 (Winter Computer School 2010/11) {39} PROGRAMMING School Team Contest #1 (Winter Computer School 2010/11): Tutorial 1200
1962 Pacifist frogs implementation Statement F School Team Contest 1 (Winter Computer School 2010/11) {39} PROGRAMMING School Team Contest #1 (Winter Computer School 2010/11): Tutorial 1300
3125 Multiplication Table implementation Statement H School Team Contest 1 (Winter Computer School 2010/11) {39} PROGRAMMING School Team Contest #1 (Winter Computer School 2010/11): Problem K Tutorial 1300
3569 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
1033 What Has Dirichlet Got to Do with That? dp games Statement E School Team Contest 1 (Winter Computer School 2010/11) {39} PROGRAMMING School Team Contest #1 (Winter Computer School 2010/11): Problem K Tutorial 2100
794 C*++ Calculations expression parsing greedy Statement A School Team Contest 1 (Winter Computer School 2010/11) {39} PROGRAMMING School Team Contest #1 (Winter Computer School 2010/11): Tutorial 2100
697 Moon Craters dp sortings Statement C School Team Contest 1 (Winter Computer School 2010/11) {39} PROGRAMMING School Team Contest #1 (Winter Computer School 2010/11): Tutorial 2300
160 Inverse Function implementation Statement G School Team Contest 1 (Winter Computer School 2010/11) {39} PROGRAMMING School Team Contest #1 (Winter Computer School 2010/11): Problem K Tutorial 2500
199 Tram Statement I School Team Contest 1 (Winter Computer School 2010/11) {39} PROGRAMMING School Team Contest #1 (Winter Computer School 2010/11): Tutorial 2700
102 Testing Statement K School Team Contest 1 (Winter Computer School 2010/11) {39} PROGRAMMING School Team Contest #1 (Winter Computer School 2010/11): Problem K Tutorial 2700
4432 Find Color constructive algorithms geometry implementation math Statement A Codeforces Beta Round 39 {40} PROGRAMMING codeforces #39 1300
1397 Repaintings math Statement B Codeforces Beta Round 39 {40} PROGRAMMING codeforces #39 1600
325 Berland Square implementation math Statement C Codeforces Beta Round 39 {40} PROGRAMMING codeforces #39 2200
810 Number Table combinatorics Statement E Codeforces Beta Round 39 {40} PROGRAMMING Codeforces Beta Round #39 (Разбор задач) 2500
170 Interesting Sequence math Statement D Codeforces Beta Round 39 {40} PROGRAMMING Codeforces Beta Round #39 (Разбор задач) 2600
4193 Email address expression parsing implementation Statement C Codeforces Beta Round 40 (Div. 2) {41} PROGRAMMING Codeforces Beta Round #40 Mini-Tutorial 1400
4626 Martian Dollar brute force Statement B Codeforces Beta Round 40 (Div. 2) {41} PROGRAMMING Codeforces Beta Round #40 Mini-Tutorial 1500
2224 3-cycles constructive algorithms graphs greedy Statement E Codeforces Beta Round 40 (Div. 2) {41} PROGRAMMING Codeforces Beta Round #40 Mini-Tutorial 1900
2895 Pawn dp Statement D Codeforces Beta Round 40 (Div. 2) {41} PROGRAMMING Codeforces Beta Round #40 Mini-Tutorial 2000
188196 Translation implementation strings Statement A Codeforces Beta Round 40 (Div. 2) {41} PROGRAMMING Codeforces Beta Round #40 Mini-Tutorial 900
3173 Guilty --- to the kitchen! greedy implementation Statement A Codeforces Beta Round 41 {42} PROGRAMMING Solution of task е, Codeforces beta round #41 1500
1153 Game of chess unfinished implementation Statement B Codeforces Beta Round 41 {42} PROGRAMMING Solution of task е, Codeforces beta round #41 1700
567 Safe cracking brute force constructive algorithms Statement C Codeforces Beta Round 41 {42} PROGRAMMING Solution of task е, Codeforces beta round #41 2200
485 Strange town constructive algorithms math Statement D Codeforces Beta Round 41 {42} PROGRAMMING Solution of task е, Codeforces beta round #41 2300
244 Baldman and the military dfs and similar graphs trees Statement E Codeforces Beta Round 41 {42} PROGRAMMING Solution of task е, Codeforces beta round #41 2700
69088 Football strings Statement A Codeforces Beta Round 42 (Div. 2) {43} PROGRAMMING How to solve Codeforces 42(Div.2) 1100
20470 Letter implementation strings Statement B Codeforces Beta Round 42 (Div. 2) {43} PROGRAMMING How to solve Codeforces 42(Div.2) 1200
4760 Lucky Tickets greedy Statement C Codeforces Beta Round 42 (Div. 2) {43} PROGRAMMING How to solve Codeforces 42(Div.2) 1400
1223 Journey brute force constructive algorithms implementation Statement D Codeforces Beta Round 42 (Div. 2) {43} PROGRAMMING Разбор задач A, B, C, D CodeForces Beta Round #42 1900
446 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
17398 Indian Summer implementation Statement A School Team Contest 2 (Winter Computer School 2010/11) {44} PROGRAMMING School Team Contest #2 (Winter Computer School 2010/2011): tutorial of F, G and I. 1100
4051 Holidays implementation Statement C School Team Contest 2 (Winter Computer School 2010/11) {44} PROGRAMMING School Team Contest #2 (Winter Computer School 2010/2011): tutorial of A-E, H, J. 1300
6107 Anfisa the Monkey dp Statement E School Team Contest 2 (Winter Computer School 2010/11) {44} PROGRAMMING School Team Contest #2 (Winter Computer School 2010/2011): tutorial of F, G and I. 1500
2301 Cola implementation Statement B School Team Contest 2 (Winter Computer School 2010/11) {44} PROGRAMMING School Team Contest #2 (Winter Computer School 2010/2011): tutorial of F, G and I. 1600
2003 Phone Number dp Statement H School Team Contest 2 (Winter Computer School 2010/11) {44} PROGRAMMING School Team Contest #2 (Winter Computer School 2010/2011): tutorial of F, G and I. 1800
800 Hyperdrive math Statement D School Team Contest 2 (Winter Computer School 2010/11) {44} PROGRAMMING School Team Contest #2 (Winter Computer School 2010/2011): tutorial of A-E, H, J. 1900
614 Triminoes constructive algorithms greedy Statement J School Team Contest 2 (Winter Computer School 2010/11) {44} PROGRAMMING School Team Contest #2 (Winter Computer School 2010/2011): tutorial of A-E, H, J. 2000
231 Toys brute force combinatorics Statement I School Team Contest 2 (Winter Computer School 2010/11) {44} PROGRAMMING School Team Contest #2 (Winter Computer School 2010/2011): tutorial of A-E, H, J. 2400
501 Shooting Gallery data structures implementation Statement G School Team Contest 2 (Winter Computer School 2010/11) {44} PROGRAMMING School Team Contest #2 (Winter Computer School 2010/2011): tutorial of A-E, H, J. 2600
80 BerPaint geometry graphs Statement F School Team Contest 2 (Winter Computer School 2010/11) {44} PROGRAMMING School Team Contest #2 (Winter Computer School 2010/2011): tutorial of A-E, H, J. 2600
2802 TCMCF+++ greedy Statement I School Team Contest 3 (Winter Computer School 2010/11) {45} PROGRAMMING 1500
8097 Codecraft III implementation Statement A School Team Contest 3 (Winter Computer School 2010/11) {45} PROGRAMMING 1500
1073 Planting Trees constructive algorithms Statement J School Team Contest 3 (Winter Computer School 2010/11) {45} PROGRAMMING 1900
1973 Event Dates greedy meet-in-the-middle sortings Statement D School Team Contest 3 (Winter Computer School 2010/11) {45} PROGRAMMING 1900
1145 Dancing Lessons data structures Statement C School Team Contest 3 (Winter Computer School 2010/11) {45} PROGRAMMING 2000
642 Director constructive algorithms greedy Statement E School Team Contest 3 (Winter Computer School 2010/11) {45} PROGRAMMING 2100
1221 Prime Problem number theory Statement G School Team Contest 3 (Winter Computer School 2010/11) {45} PROGRAMMING 2300
319 School dp dsu Statement B School Team Contest 3 (Winter Computer School 2010/11) {45} PROGRAMMING 2400
226 Road Problem graphs Statement H School Team Contest 3 (Winter Computer School 2010/11) {45} PROGRAMMING 2600
167 Goats and Wolves greedy Statement F School Team Contest 3 (Winter Computer School 2010/11) {45} PROGRAMMING 2600
4133 T-shirts from Sponsor implementation Statement B School Personal Contest #2 (Winter Computer School 2010/11) - Codeforces Beta Round 43 (ACM-ICPC Rules) {46} PROGRAMMING School Individual Contest #2 (WCS 2010/11) - Codeforces Beta Round #43 (ACM-ICPC Rules). Tasks B, D, E tutorial. 1100
2875 Hamsters and Tigers two pointers Statement C School Personal Contest #2 (Winter Computer School 2010/11) - Codeforces Beta Round 43 (ACM-ICPC Rules) {46} PROGRAMMING School Individual Contest #2 (WCS 2010/11) - Codeforces Beta Round #43 (ACM-ICPC Rules): A, C, F and G tutorial 1700
1094 Parking Lot data structures implementation Statement D School Personal Contest #2 (Winter Computer School 2010/11) - Codeforces Beta Round 43 (ACM-ICPC Rules) {46} PROGRAMMING School Individual Contest #2 (WCS 2010/11) - Codeforces Beta Round #43 (ACM-ICPC Rules). Tasks B, D, E tutorial. 1800
1156 Comb data structures dp Statement E School Personal Contest #2 (Winter Computer School 2010/11) - Codeforces Beta Round 43 (ACM-ICPC Rules) {46} PROGRAMMING School Individual Contest #2 (WCS 2010/11) - Codeforces Beta Round #43 (ACM-ICPC Rules): A, C, F and G tutorial 1900
358 Hercule Poirot Problem dsu graphs Statement F School Personal Contest #2 (Winter Computer School 2010/11) - Codeforces Beta Round 43 (ACM-ICPC Rules) {46} PROGRAMMING School Individual Contest #2 (WCS 2010/11) - Codeforces Beta Round #43 (ACM-ICPC Rules). Tasks B, D, E tutorial. 2300
134 Emperor's Problem geometry Statement G School Personal Contest #2 (Winter Computer School 2010/11) - Codeforces Beta Round 43 (ACM-ICPC Rules) {46} PROGRAMMING School Individual Contest #2 (WCS 2010/11) - Codeforces Beta Round #43 (ACM-ICPC Rules). Tasks B, D, E tutorial. 2500
9928 Ball Game brute force implementation Statement A School Personal Contest #2 (Winter Computer School 2010/11) - Codeforces Beta Round 43 (ACM-ICPC Rules) {46} PROGRAMMING School Individual Contest #2 (WCS 2010/11) - Codeforces Beta Round #43 (ACM-ICPC Rules): A, C, F and G tutorial 900
16063 Coins implementation Statement B Codeforces Beta Round 44 (Div. 2) {47} PROGRAMMING Codeforces Beta Round #44: tutorial 1200
867 Crossword implementation Statement C Codeforces Beta Round 44 (Div. 2) {47} PROGRAMMING Codeforces Beta Round #44: tutorial 2000
974 Safe brute force Statement D Codeforces Beta Round 44 (Div. 2) {47} PROGRAMMING Codeforces Beta Round #44: tutorial 2100
440 Cannon data structures geometry sortings Statement E Codeforces Beta Round 44 (Div. 2) {47} PROGRAMMING Codeforces Beta Round #44: tutorial 2100
18160 Triangular numbers brute force math Statement A Codeforces Beta Round 44 (Div. 2) {47} PROGRAMMING Codeforces Beta Round #44: tutorial 800
3042 Land Lot brute force implementation Statement B School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round 45 (ACM-ICPC Rules) {48} PROGRAMMING 1300
2994 Permutations greedy Statement D School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round 45 (ACM-ICPC Rules) {48} PROGRAMMING 1500
856 The Race math Statement C School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round 45 (ACM-ICPC Rules) {48} PROGRAMMING 1800