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.

Get exact match for tags using this format, eg: [u'brute force', 'dp']

1 2 3 ... 100 101 102 >

Solved
Name
Tags
Solutions
Index
Contest
Type
Points
Tutorial
Rating Level
271433 Theatre Square math Statement A Codeforces Beta Round 1 {1} PROGRAMMING 85 1300
23262 Spreadsheet implementation math Statement B Codeforces Beta Round 1 {1} PROGRAMMING 85 1700
5797 Ancient Berland Circus geometry math Statement C Codeforces Beta Round 1 {1} PROGRAMMING 85 2100
27066 Winner hashing implementation Statement A Codeforces Beta Round 2 {2} PROGRAMMING Codeforces Beta Round #2 - Tutorial 1600
11160 The least round way dp math Statement B Codeforces Beta Round 2 {2} PROGRAMMING Codeforces Beta Round #2 - Tutorial 2000
1788 Commentator problem geometry Statement C Codeforces Beta Round 2 {2} PROGRAMMING Codeforces Beta Round #2 - Tutorial 2600
19731 Shortest path of the king greedy shortest paths Statement A Codeforces Beta Round 3 {3} PROGRAMMING CF beta 3: разбор и эмоции 1200
7474 Tic-tac-toe brute force games implementation Statement C Codeforces Beta Round 3 {3} PROGRAMMING CF beta 3: разбор и эмоции 1700
4658 Lorry greedy sortings Statement B Codeforces Beta Round 3 {3} PROGRAMMING 1900
3449 Least Cost Bracket Sequence greedy Statement D Codeforces Beta Round 3 {3} PROGRAMMING CF beta 3: разбор и эмоции 2500
552001 Watermelon brute force math Statement A Codeforces Beta Round 4 (Div. 2 Only) {4} PROGRAMMING 1200
86862 Registration System data structures hashing implementation Statement C Codeforces Beta Round 4 (Div. 2 Only) {4} PROGRAMMING 1500
25676 Before an Exam constructive algorithms greedy Statement B Codeforces Beta Round 4 (Div. 2 Only) {4} PROGRAMMING 1500
10570 Mysterious Present dp sortings Statement D Codeforces Beta Round 4 (Div. 2 Only) {4} PROGRAMMING 1800
9893 Chat Servers Outgoing Traffic implementation Statement A Codeforces Beta Round 5 {5} PROGRAMMING C, D и E с CBR5 - разбор 1200
6030 Center Alignment implementation strings Statement B Codeforces Beta Round 5 {5} PROGRAMMING C, D и E с CBR5 - разбор 1400
14431 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
1744 Follow Traffic Rules implementation math Statement D Codeforces Beta Round 5 {5} PROGRAMMING C, D и E с CBR5 - разбор 2100
2198 Bindian Signalizing data structures Statement E Codeforces Beta Round 5 {5} PROGRAMMING C, D и E с CBR5 - разбор 2400
20275 Triangle brute force geometry Statement A Codeforces Beta Round 6 (Div. 2 Only) {6} PROGRAMMING Round #6 - Tutorial (A,B,C,E) 1300
13302 President's Office implementation Statement B Codeforces Beta Round 6 (Div. 2 Only) {6} PROGRAMMING Round #6 - Tutorial (A,B,C,E) 1400
14546 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
3371 Exposition binary search data structures ds trees two pointers Statement E Codeforces Beta Round 6 (Div. 2 Only) {6} PROGRAMMING 1900
2035 Lizards and Basements 2 brute force dp Statement D Codeforces Beta Round 6 (Div. 2 Only) {6} PROGRAMMING 2100
7327 Kalevitch and Chess brute force constructive algorithms Statement A Codeforces Beta Round 7 {7} PROGRAMMING 1300
2640 Memory Manager implementation Statement B Codeforces Beta Round 7 {7} PROGRAMMING 1700
4719 Line math number theory Statement C Codeforces Beta Round 7 {7} PROGRAMMING 1800
3836 Palindrome Degree hashing strings Statement D Codeforces Beta Round 7 {7} PROGRAMMING 2200
727 Defining Macros dp expression parsing implementation Statement E Codeforces Beta Round 7 {7} PROGRAMMING 2500
6001 Train and Peter strings Statement A Codeforces Beta Round 8 {8} PROGRAMMING Codeforces Beta Round #8 Tutorial 1400
4428 Obsession with Robots constructive algorithms graphs implementation Statement B Codeforces Beta Round 8 {8} PROGRAMMING Codeforces Beta Round #8 Tutorial 1500
3650 Looking for Order bitmasks dp Statement C Codeforces Beta Round 8 {8} PROGRAMMING Codeforces Beta Round #8 Tutorial 2000
535 Two Friends binary search geometry Statement D Codeforces Beta Round 8 {8} PROGRAMMING Codeforces Beta Round #8 Tutorial 2600
702 Beads dp graphs Statement E Codeforces Beta Round 8 {8} PROGRAMMING 2600
58817 Die Roll math probabilities Statement A Codeforces Beta Round 9 (Div. 2 Only) {9} PROGRAMMING Codeforces Beta Round #9 tutorial 1000
5588 Running Student brute force geometry implementation Statement B Codeforces Beta Round 9 (Div. 2 Only) {9} PROGRAMMING Codeforces Beta Round #9 tutorial 1500
13153 Hexadecimal's Numbers brute force implementation math Statement C Codeforces Beta Round 9 (Div. 2 Only) {9} PROGRAMMING Codeforces Beta Round #9 tutorial 1500
3951 How many trees? combinatorics divide and conquer dp Statement D Codeforces Beta Round 9 (Div. 2 Only) {9} PROGRAMMING 2000
1058 Interestring graph and Apples dfs and similar ds graphs Statement E Codeforces Beta Round 9 (Div. 2 Only) {9} PROGRAMMING 2300
7341 Power Consumption Calculation implementation Statement A Codeforces Beta Round 10 {10} PROGRAMMING 1100
1808 Cinema Cashier dp implementation Statement B Codeforces Beta Round 10 {10} PROGRAMMING 1600
1479 Digital Root number theory Statement C Codeforces Beta Round 10 {10} PROGRAMMING 2000
843 Greedy Change constructive algorithms Statement E Codeforces Beta Round 10 {10} PROGRAMMING 2600
4596 LCIS dp Statement D Codeforces Beta Round 10 {10} PROGRAMMING 2700
13707 Increasing Sequence constructive algorithms implementation math Statement A Codeforces Beta Round 11 {11} PROGRAMMING 1100
4855 Jumping Jack math Statement B Codeforces Beta Round 11 {11} PROGRAMMING 1700
621 How Many Squares? implementation Statement C Codeforces Beta Round 11 {11} PROGRAMMING 2200
5070 A Simple Task bitmasks dp graphs Statement D Codeforces Beta Round 11 {11} PROGRAMMING 2200
372 Forward, march! binary search dp greedy Statement E Codeforces Beta Round 11 {11} PROGRAMMING 2800
13438 Super Agent implementation Statement A Codeforces Beta Round 12 (Div 2 Only) {12} PROGRAMMING 1100
6330 Fruits greedy implementation sortings Statement C Codeforces Beta Round 12 (Div 2 Only) {12} PROGRAMMING 1400
8707 Correct Solution? implementation sortings Statement B Codeforces Beta Round 12 (Div 2 Only) {12} PROGRAMMING 1400
1255 Start of the session constructive algorithms Statement E Codeforces Beta Round 12 (Div 2 Only) {12} PROGRAMMING 2100
2382 Ball data structures sortings Statement D Codeforces Beta Round 12 (Div 2 Only) {12} PROGRAMMING 2400
7959 Numbers implementation math Statement A Codeforces Beta Round 13 {13} PROGRAMMING Codeforces Beta Round #13 editorial 1200
1010 Letter A geometry implementation Statement B Codeforces Beta Round 13 {13} PROGRAMMING Codeforces Beta Round #13 editorial 2000
4760 Sequence dp sortings Statement C Codeforces Beta Round 13 {13} PROGRAMMING Codeforces Beta Round #13 editorial 2200
669 Triangles dp geometry Statement D Codeforces Beta Round 13 {13} PROGRAMMING Codeforces Beta Round #13 editorial 2500
6275 Holes data structures ds Statement E Codeforces Beta Round 13 {13} PROGRAMMING Codeforces Beta Round #13 editorial 2700
10889 Letter implementation Statement A Codeforces Beta Round 14 (Div. 2) {14} PROGRAMMING Codeforces Beta Round #14 tutorial 1100
7195 Young Photographer implementation Statement B Codeforces Beta Round 14 (Div. 2) {14} PROGRAMMING Codeforces Beta Round #14 tutorial 1400
3443 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
1738 Camels dp Statement E Codeforces Beta Round 14 (Div. 2) {14} PROGRAMMING Codeforces Beta Round #14 tutorial 2000
4653 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
3973 Cottage Village implementation sortings Statement A Codeforces Beta Round 15 {15} PROGRAMMING Codeforces Beta #15 Tutorial (Incomplete) 1400
1485 Laser math Statement B Codeforces Beta Round 15 {15} PROGRAMMING Codeforces Beta #15 Tutorial (Incomplete) 1700
2370 Industrial Nim games Statement C Codeforces Beta Round 15 {15} PROGRAMMING Codeforces Beta #15 Tutorial (Incomplete) 2000
778 Map data structures implementation sortings Statement D Codeforces Beta Round 15 {15} PROGRAMMING 2500
592 Triangles combinatorics dp Statement E Codeforces Beta Round 15 {15} PROGRAMMING Codeforces Beta #15 Tutorial (Incomplete) 2600
14785 Flag implementation Statement A Codeforces Beta Round 16 (Div. 2 Only) {16} PROGRAMMING Codeforces Beta Round #16 Tutorial 1100
18452 Burglar and Matches greedy implementation sortings Statement B Codeforces Beta Round 16 (Div. 2 Only) {16} PROGRAMMING Codeforces Beta Round #16 Tutorial 1300
4866 Monitor binary search number theory Statement C Codeforces Beta Round 16 (Div. 2 Only) {16} PROGRAMMING Codeforces Beta Round #16 Tutorial 1800
1640 Logging implementation strings Statement D Codeforces Beta Round 16 (Div. 2 Only) {16} PROGRAMMING 2000
5334 Fish bitmasks dp probabilities Statement E Codeforces Beta Round 16 (Div. 2 Only) {16} PROGRAMMING Codeforces Beta Round #16 Tutorial 2100
17201 Noldbach problem brute force math number theory Statement A Codeforces Beta Round 17 {17} PROGRAMMING Codeforces Beta Round #17 Tutorial 1100
5033 Hierarchy dfs and similar ds greedy shortest paths Statement B Codeforces Beta Round 17 {17} PROGRAMMING Codeforces Beta Round #17 Tutorial 1600
1117 Notepad number theory Statement D Codeforces Beta Round 17 {17} PROGRAMMING Codeforces Beta Round #17 Tutorial 2300
947 Balance dp Statement C Codeforces Beta Round 17 {17} PROGRAMMING 2500
1613 Palisection strings Statement E Codeforces Beta Round 17 {17} PROGRAMMING Codeforces Beta Round #17 Tutorial 2900
13475 Stripe data structures implementation Statement C Codeforces Beta Round 18 (Div. 2 Only) {18} PROGRAMMING Codeforces Beta Round #18(Div. 2) Tutorial 1400
6186 Triangle brute force geometry Statement A Codeforces Beta Round 18 (Div. 2 Only) {18} PROGRAMMING Codeforces Beta Round #18(Div. 2) Tutorial 1600
2172 Platforms brute force math Statement B Codeforces Beta Round 18 (Div. 2 Only) {18} PROGRAMMING Codeforces Beta Round #18(Div. 2) Tutorial 1700
1086 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
1121 Flag 2 dp Statement E Codeforces Beta Round 18 (Div. 2 Only) {18} PROGRAMMING Codeforces Beta Round #18(Div. 2) Tutorial 2400
2816 World Football Cup implementation Statement A Codeforces Beta Round 19 {19} PROGRAMMING Code Force Beta Round 19 Solution 1400
4971 Checkout Assistant dp Statement B Codeforces Beta Round 19 {19} PROGRAMMING Code Force Beta Round 19 Solution 1900
1122 Deletion of Repeats greedy hashing string suffix structures Statement C Codeforces Beta Round 19 {19} PROGRAMMING Code Force Beta Round 19 Solution 2200
2508 Points data structures Statement D Codeforces Beta Round 19 {19} PROGRAMMING Code Force Beta Round 19 Solution 2800
2026 Fairy dfs and similar divide and conquer ds Statement E Codeforces Beta Round 19 {19} PROGRAMMING Code Force Beta Round 19 Solution 2800
34344 Dijkstra? graphs shortest paths Statement C Codeforces Alpha Round 20 (Codeforces format) {20} PROGRAMMING 2100
4002 Equation math Statement B Codeforces Alpha Round 20 (Codeforces format) {20} PROGRAMMING 2600
6332 BerOS file system implementation Statement A Codeforces Alpha Round 20 (Codeforces format) {20} PROGRAMMING 2600
2180 Stripe 2 binary search dp sortings Statement C Codeforces Alpha Round 21 (Codeforces format) {21} PROGRAMMING 2300
1893 Jabber ID implementation strings Statement A Codeforces Alpha Round 21 (Codeforces format) {21} PROGRAMMING 2300
1377 Intersection implementation math Statement B Codeforces Alpha Round 21 (Codeforces format) {21} PROGRAMMING 2300
926 Traveling Graph bitmasks graph matchings graphs Statement D Codeforces Alpha Round 21 (Codeforces format) {21} PROGRAMMING 2500
22953 Second Order Statistics brute force Statement A Codeforces Beta Round 22 (Div. 2 Only) {22} PROGRAMMING Codeforces Beta Round #22 Tutorial 1000
4286 Bargaining Table brute force dp Statement B Codeforces Beta Round 22 (Div. 2 Only) {22} PROGRAMMING Codeforces Beta Round #22 Tutorial 1600
3219 System Administrator graphs Statement C Codeforces Beta Round 22 (Div. 2 Only) {22} PROGRAMMING Codeforces Beta Round #22 Tutorial 1700
2802 Segments greedy sortings Statement D Codeforces Beta Round 22 (Div. 2 Only) {22} PROGRAMMING Codeforces Beta Round #22 Tutorial 1900