Problemset - Codeforces

→ Pay attention

Before contest
2023 Post World Finals Online ICPC Challenge powered by Huawei
31:46:55
Register now »

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
1168C	And Reachability bitmasks, dp	2200	x2324
592D	Super M dfs and similar, dp, graphs, trees	2200	x2353
1234F	Yet Another Substring Reverse bitmasks, dp	2200	x2364
1384B2	Koa and the Beach (Hard Version) constructive algorithms, dp, greedy, implementation	2200	x2457
1557D	Ezzat and Grid data structures, dp, greedy	2200	x2465
1788E	Sum Over Zero data structures, dfs and similar, dp	2200	x2466
1556E	Equilibrium data structures, dp, greedy	2200	x2510
1542D	Priority Queue combinatorics, dp, implementation, math, ternary search	2200	x2530
1220E	Tourism dfs and similar, dp, dsu, graphs, greedy, trees	2200	x2541
1097D	Makoto and a Blackboard dp, math, number theory, probabilities	2200	x2559
1303E	Erase Subsequences dp, strings	2200	x2567
1253E	Antenna Coverage data structures, dp, greedy, sortings	2200	x2619
1535E	Gold Transfer binary search, data structures, dp, greedy, interactive, trees	2200	x2629
839D	Winter is here combinatorics, dp, math, number theory	2200	x2683
1858D	Trees and Segments brute force, data structures, dp, greedy, two pointers	2200	x2688
1373E	Sum of Digits brute force, constructive algorithms, dp, greedy	2200	x2695
1238E	Keyboard Purchase bitmasks, dp	2200	x2737
768D	Jon and Orbs dp, math, probabilities	2200	x2766
1860D	Balanced String dp	2200	x2779
1552F	Telepanting binary search, data structures, dp, sortings	2200	x2780
1486E	Paired Payment binary search, brute force, constructive algorithms, dp, flows, graphs, shortest paths	2200	x2791
1630C	Paint the Middle dp, greedy, sortings, two pointers	2200	x2829
1215E	Marbles bitmasks, dp	2200	x2912
1353F	Decreasing Heights brute force, dp	2200	x3054
1175E	Minimal Segment Cover data structures, dfs and similar, divide and conquer, dp, greedy, implementation, trees	2200	x3193
1503C	Travelling Salesman Problem binary search, data structures, dp, greedy, shortest paths, sortings, two pointers	2200	x3197
1110D	Jongmah dp	2200	x3260
1437E	Make It Increasing binary search, constructive algorithms, data structures, dp, implementation	2200	x3322
1854B	Earn or Unlock bitmasks, brute force, dp	2200	x3328
1336C	Kaavi and Magic Spell dp, strings	2200	x3332
1515E	Phoenix and Computers combinatorics, dp, math	2200	x3362
1467D	Sum of Paths combinatorics, dp, math	2200	x3539
1156D	0-1-Tree dfs and similar, divide and conquer, dp, dsu, trees	2200	x3679
1474D	Cleaning data structures, dp, greedy, math	2200	x3870
13C	Sequence dp, sortings	2200	x4113
11D	A Simple Task bitmasks, dp, graphs	2200	x4438
833B	The Bakery binary search, data structures, divide and conquer, dp, two pointers	2200	x4487
1407D	Discrete Centrifugal Jumps data structures, dp, graphs	2200	x4622
1400E	Clear the Multiset data structures, divide and conquer, dp, greedy	2200	x5010
628D	Magic Numbers dp	2200	x5368
559C	Gerald and Giant Chess combinatorics, dp, math, number theory	2200	x6139
165E	Compatible Numbers bitmasks, brute force, dfs and similar, dp	2200	x6184
1431G	Number Deletion Game *special problem, dp, games, greedy	2100	x137
1910E	Maximum Sum Subarrays *special problem, dp	2100	x167
38F	Smart Boy dp, games, strings	2100	x375
212C	Cowboys combinatorics, dp, math	2100	x376
386D	Game with Points dp, graphs, implementation, shortest paths	2100	x411
254E	Dormitory dp, implementation	2100	x484
342D	Xenia and Dominoes bitmasks, dfs and similar, dp	2100	x487
690D3	The Wall (hard) dp	2100	x489
309B	Context Advertising dp, two pointers	2100	x498
54D	Writing a Song brute force, dp, strings	2100	x506
215E	Periodical Numbers combinatorics, dp, number theory	2100	x538
48E	Ivan the Fool VS Gorynych the Dragon dp, games, graphs	2100	x560
39C	Moon Craters dp, sortings	2100	x568
802K	Send the Fool Further! (medium) dp, trees	2100	x578
50D	Bombing binary search, dp, probabilities	2100	x596
132D	Constants in the language of Shakespeare constructive algorithms, dp, greedy	2100	x603
1906J	Count BFS Graph combinatorics, dp	2100	x629
1387A	Graph *special problem, binary search, dfs and similar, dp, math, ternary search	2100	x670
542F	Quest dp, greedy	2100	x734
852E	Casinos and travel dp	2100	x808
859D	Third Month Insanity dp, probabilities, trees	2100	x848
954F	Runner's Problem dp, matrices, sortings	2100	x975
77C	Beavermuncher-0xFF dfs and similar, dp, dsu, greedy, trees	2100	x977
575F	Bulbo dp, greedy	2100	x983
238C	World Eater Brothers dfs and similar, dp, greedy, trees	2100	x1018
900E	Maximum Questions data structures, dp, strings	2100	x1028
1044C	Optimal Polygon Perimeter dp, geometry	2100	x1203
1163D	Mysterious Code dp, strings	2100	x1217
283C	Coin Troubles dp	2100	x1230
1575L	Longest Array Deconstruction data structures, divide and conquer, dp, sortings	2100	x1262
111C	Petya and Spiders bitmasks, dp, dsu	2100	x1268
1666J	Job Lookup constructive algorithms, dp, shortest paths, trees	2100	x1292
1387B1	Village (Minimum) *special problem, dp, greedy, trees	2100	x1316
587B	Duff in Beach dp	2100	x1376
282D	Yet Another Number Game dp, games	2100	x1377
552E	Vanya and Brackets brute force, dp, expression parsing, greedy, implementation, strings	2100	x1409
821E	Okabe and El Psy Kongroo dp, matrices	2100	x1411
313D	Ilya and Roads dp	2100	x1417
1032E	The Unbearable Lightness of Weights dp, math	2100	x1473
439E	Devu and Birthday Celebration combinatorics, dp, math	2100	x1474
1866G	Grouped Carriages binary search, data structures, dp, flows, greedy	2100	x1502
56D	Changing a String dp	2100	x1520
231E	Cactus data structures, dfs and similar, dp, graphs, trees	2100	x1536
793D	Presents in Bankopolis dp, graphs, shortest paths	2100	x1576
489F	Special Matrices combinatorics, dp	2100	x1595
464C	Substitutes in Number dp	2100	x1651
295C	Greg and Friends combinatorics, dp, graphs, shortest paths	2100	x1654
1914G1	Light Bulbs (Easy Version) brute force, combinatorics, dfs and similar, dp, dsu, graphs, math, trees	2100	x1664
1176F	Destroy it! dp, implementation, sortings	2100	x1740
1066F	Yet another 2D Walking dp	2100	x1759
1900E	Transitive Graph dfs and similar, dp, dsu, graphs, implementation	2100	x1794
1510D	Digits dp, math, number theory	2100	x1798
1027E	Inverse Coloring combinatorics, dp, math	2100	x1859
1120C	Compress String dp, strings	2100	x1870
145C	Lucky Subsequence combinatorics, dp, math	2100	x1882
1811G1	Vlad and the Nice Paths (easy version) combinatorics, dp, math	2100	x1906
1525E	Assimilation IV combinatorics, dp, math, probabilities, two pointers	2100	x1963
799D	Field expansion brute force, dp, meet-in-the-middle	2100	x1969