Problemset - Codeforces

→ Pay attention

Contest is running
2023 Post World Finals Online ICPC Challenge powered by Huawei
13 days
Register now »

Contest is running
Kotlin Heroes: Practice 10
6 days
Register now »

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
894A	QAQ brute force, dp	800	x32905
893F	Subtree Minimum Query data structures, trees	2300	x1665
893E	Counting Arrays combinatorics, dp, math, number theory	2000	x3260
893D	Credit Card data structures, dp, greedy, implementation	1900	x2917
893C	Rumor dfs and similar, graphs, greedy	1300	x21641
893B	Beautiful Divisors brute force, implementation	1000	x10949
893A	Chess For Three implementation	900	x10017
892B	Wrath greedy, implementation, two pointers	1200	x8659
892A	Greed greedy, implementation	900	x13201
891E	Lust combinatorics, math, matrices	3000	x853
891D	Sloth dfs and similar, dp, graph matchings, trees	3100	x169
891C	Envy data structures, dsu, graphs	2300	x2220
891B	Gluttony constructive algorithms, greedy	2000	x2903
891A	Pride brute force, dp, greedy, math, number theory	1500	x9604
889E	Mod Mod Mod binary search, dp, math	3000	x515
888G	Xor-MST bitmasks, constructive algorithms, data structures	2300	x3885
888F	Connecting Vertices dp, graphs	2500	x748
888E	Maximum Subsequence bitmasks, divide and conquer, meet-in-the-middle	1800	x6626
888D	Almost Identity Permutations combinatorics, dp, math	1600	x7614
888C	K-Dominant Character binary search, implementation, two pointers	1400	x8076
888B	Buggy Robot greedy	1000	x9526
888A	Local Extrema brute force, implementation	800	x10663
887F	Row of Models greedy, sortings	2500	x160
887E	Little Brother binary search, geometry, sortings	2800	x162
887D	Ratings and Reality Shows data structures, two pointers	2400	x471
887C	Solution for Cube brute force, implementation	1500	x2833
887B	Cubes for Masha brute force, implementation	1300	x5529
887A	Div. 64 implementation	1000	x11008
886F	Symmetric Projections geometry	2900	x262
886E	Maximum Element combinatorics, dp, math	2400	x976
886D	Restoration of string constructive algorithms, graphs, implementation	2000	x1720
886C	Petya and Catacombs dsu, greedy, implementation, trees	1300	x5429
886B	Vlad and Cafes	1000	x7779
886A	ACM ICPC brute force	1000	x10081
884F	Anti-Palindromize flows, graphs, greedy	2500	x935
884E	Binary Matrix dsu	2500	x668
884D	Boxes And Balls data structures, greedy	2300	x1871
884C	Bertown Subway dfs and similar, greedy, math	1500	x4614
884B	Japanese Crosswords Strike Back implementation	1100	x6798
884A	Book Reading implementation	800	x10337
883M	Quadcopter Competition greedy, math	1100	x3492
883L	Berland.Taxi data structures	2500	x227
883K	Road Widening constructive algorithms, greedy, implementation	1800	x1072
883J	Renovation constructive algorithms, greedy, sortings	2400	x556
883I	Photo Processing binary search, dp	1900	x1893
883H	Palindromic Cut brute force, implementation, strings	1800	x1564
883G	Orientation of Edges dfs and similar, graphs	1900	x1383
883F	Lost in Transliteration implementation	1300	x2233
883E	Field of Wonders implementation, strings	1500	x1876
883D	Packmen Strike Back binary search, dp, math	2500	x349
883C	Downloading B++ binary search, implementation	2300	x614
883B	Berland Army constructive algorithms, graphs, greedy	2600	x322
883A	Automatic Door implementation	2200	x573
879B	Table Tennis data structures, implementation	1200	x11864
879A	Borya's Diagnosis implementation	900	x8949
878E	Numbers on the blackboard combinatorics, dp	3300	x472
878D	Magic Breeding bitmasks	2900	x640
878C	Tournament data structures, graphs	2700	x886
878B	Teams Formation data structures, implementation	2300	x1030
878A	Short Program bitmasks, constructive algorithms	1600	x5267
877F	Ann and Books data structures, flows, hashing	2300	x1614
877E	Danil and a Part-time Job bitmasks, data structures, trees	2000	x4244
877D	Olya and Energy Drinks data structures, dfs and similar, graphs, shortest paths	2100	x3947
877C	Slava and tanks constructive algorithms	1600	x5568
877B	Nikita and string brute force, dp	1500	x9970
877A	Alex and broken contest implementation, strings	1100	x10697
876B	Divisiblity of Differences implementation, math, number theory	1300	x8681
876A	Trip For Meal math	900	x9238
875F	Royal Questions dsu, graphs, greedy	2500	x1248
875E	Delivery Club binary search, data structures, dp	2600	x851
875D	High Cry binary search, bitmasks, combinatorics, data structures, divide and conquer	2200	x1980
875C	National Property 2-sat, dfs and similar, graphs, implementation	2100	x1921
875B	Sorting the Coins dsu, implementation, sortings, two pointers	1500	x5146
875A	Classroom Watch brute force, math	1200	x9490
873F	Forbidden Indices dsu, string suffix structures, strings	2400	x1290
873E	Awards For Contestants brute force, data structures, dp	2300	x489
873D	Merge Sort constructive algorithms, divide and conquer	1800	x2997
873C	Strange Game On Matrix greedy, two pointers	1600	x3214
873B	Balanced Substring dp, implementation	1500	x7408
873A	Chores implementation	800	x7990
871E	Restore the Tree graphs, greedy, trees	2900	x146
870F	Paths data structures, number theory	2700	x593
870E	Points, Lines and Ready-made Titles dfs and similar, dsu, graphs, trees	2300	x975
870D	Something with XOR Queries brute force, interactive, probabilities	2000	x1193
870C	Maximum splitting dp, greedy, math, number theory	1300	x8954
870B	Maximum of Maximums of Minimums greedy	1200	x9116
870A	Search for Pretty Integers brute force, implementation	900	x9947
869E	The Untended Antiquity data structures, hashing	2400	x1469
869D	The Overdosing Ubiquity brute force, dfs and similar, graphs	2800	x235
869C	The Intriguing Obsession combinatorics, dp, math	1800	x4359
869B	The Eternal Immortality math	1100	x12910
869A	The Artful Expedient brute force, implementation	1100	x9361
868G	El Toll Caves math	3300	x119
868F	Yet Another Minimization Problem divide and conquer, dp	2500	x3416
868E	Policeman and a Tree dp, graphs, trees	2700	x451
868D	Huge Strings bitmasks, brute force, dp, implementation, strings	2200	x890
868C	Qualification Rounds bitmasks, brute force, constructive algorithms, dp	1500	x4522
868B	Race Against Time implementation	1400	x3630
868A	Bark to Unlock brute force, implementation, strings	900	x8520
867A	Between the Offices implementation	800	x18759