Problemset - Codeforces

→ Pay attention

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

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

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
1593C	Save More Mice binary search, greedy, greedy	1000	x23994
1676D	X-Sum brute force, greedy, implementation	1000	x23990
1646A	Square Counting math	800	x23981
1195C	Basketball Exercise dp	1400	x23960
1613A	Long Comparison implementation, math	900	x23947
1968A	Maximize? brute force, math, number theory		x23939
1800B	Count the Number of Pairs greedy, strings	1000	x23934
1451A	Subtract or Divide greedy, math	800	x23918
448A	Rewards implementation	800	x23911
474D	Flowers dp	1700	x23908
1766A	Extremely Round brute force, implementation	800	x23906
1382B	Sequential Nim dp, games	1100	x23886
1497A	Meximization brute force, data structures, greedy, sortings	800	x23873
1883A	Morning math	800	x23863
1844A	Subtraction Game constructive algorithms, games	800	x23859
1526A	Mean Inequality constructive algorithms, sortings	800	x23857
1467A	Wizard of Orz constructive algorithms, greedy, math	900	x23850
1594A	Consecutive Sum Riddle math	800	x23830
988A	Diverse Team brute force, implementation	800	x23830
507B	Amr and Pins geometry, math	1400	x23824
1345A	Puzzle Pieces math	800	x23807
1627A	Not Shading constructive algorithms, implementation	800	x23794
1514A	Perfectly Imperfect Array math, number theory	800	x23792
1539B	Love Song dp, implementation, strings	800	x23783
1778A	Flip Flop Sum greedy, implementation	800	x23756
1549B	Gregor and the Pawn Game dfs and similar, dp, flows, graph matchings, graphs, greedy, implementation	800	x23756
1369B	AccurateLee greedy, implementation, strings	1200	x23753
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x23738
1855B	Longest Divisors Interval brute force, combinatorics, greedy, math, number theory	900	x23738
1712A	Wonderful Permutation greedy, implementation	800	x23730
1657A	Integer Moves brute force, math	800	x23669
339D	Xenia and Bit Operations data structures, trees	1700	x23661
1420B	Rock and Lever bitmasks, math	1200	x23658
1634A	Reverse and Concatenate greedy, strings	800	x23647
1699A	The Third Three Number Problem constructive algorithms, math	800	x23644
4B	Before an Exam constructive algorithms, greedy	1200	x23635
1881B	Three Threadlets math	900	x23618
1822A	TubeTube Feed brute force, implementation	800	x23617
371C	Hamburgers binary search, brute force	1600	x23602
1419D1	Sage's Birthday (easy version) binary search, constructive algorithms, greedy, sortings	1000	x23591
1916B	Two Divisors constructive algorithms, math, number theory	1000	x23573
37A	Towers sortings	1000	x23564
1365A	Matrix Game games, greedy, implementation	1100	x23553
1621A	Stable Arrangement of Rooks constructive algorithms	800	x23541
1370C	Number Game games, math, number theory	1400	x23535
1552A	Subsequence Permutation sortings, strings	800	x23513
1326B	Maximums implementation, math	900	x23505
1213A	Chips Moving math	900	x23496
272A	Dima and Friends implementation, math	1000	x23495
1955B	Progressive Square constructive algorithms, data structures, implementation, sortings	1000	x23485
1748A	The Ultimate Square math	800	x23479
1684A	Digit Minimization constructive algorithms, games, math, strings	800	x23474
1206A	Choose Two Numbers math, sortings	800	x23470
1395A	Boboniu Likes to Color Balls brute force, math	1000	x23433
1401C	Mere Array constructive algorithms, math, number theory, sortings	1300	x23429
1102A	Integer Sequence Dividing math	800	x23426
1809A	Garland implementation	800	x23413
680B	Bear and Finding Criminals constructive algorithms, implementation	1000	x23406
1895A	Treasure Chest math	800	x23403
1946A	Median of an Array greedy, implementation, sortings	800	x23384
1506C	Double-ended Strings brute force, implementation, strings	1000	x23378
1430C	Numbers on Whiteboard constructive algorithms, data structures, greedy, implementation, math	1000	x23316
1934A	Too Min Too Max greedy, math	800	x23303
1380A	Three Indices brute force, data structures	900	x23290
1238A	Prime Subtraction math, number theory	900	x23262
1354A	Alarm Clock math	900	x23235
1795A	Two Towers brute force, implementation, strings	800	x23234
1923A	Moving Chips greedy, implementation	800	x23203
1907B	YetnotherrokenKeoard data structures, implementation, strings	1000	x23201
1715A	Crossmarket constructive algorithms, greedy, math	800	x23186
1342B	Binary Period constructive algorithms, strings	1100	x23145
1516A	Tit for Tat greedy	800	x23142
1856B	Good Arrays implementation, math	900	x23131
378A	Playing with Dice brute force	800	x23106
1861A	Prime Deletion constructive algorithms, math	800	x23092
1370B	GCD Compression constructive algorithms, math, number theory	1100	x23092
1669F	Eating Candies binary search, data structures, greedy, two pointers	1100	x23067
1005A	Tanya and Stairways implementation	800	x23050
1614A	Divan and a Store brute force, constructive algorithms, greedy	800	x23039
1779B	MKnez's ConstructiveForces Task constructive algorithms, math	900	x23003
1926C	Vlad and a Sum of Sum of Digits dp, implementation	1200	x22998
1629B	GCD Arrays greedy, math, number theory	800	x22966
1828A	Divisible Array constructive algorithms, math	800	x22960
1702D	Not a Cheap String greedy	1000	x22960
1873E	Building an Aquarium binary search, sortings	1100	x22938
1790C	Premutation brute force, implementation, math	1000	x22935
1665A	GCD vs LCM constructive algorithms, math	800	x22933
1857C	Assembly via Minimums greedy, sortings	1200	x22917
1674C	Infinite Replacement combinatorics, implementation, strings	1000	x22912
1779A	Hall of Fame constructive algorithms, greedy, strings	800	x22887
404A	Valera and X implementation	1000	x22885
1363B	Subsequence Hate implementation, strings	1400	x22884
1770A	Koxia and Whiteboards brute force, greedy	1000	x22864
1351A	A+B (Trial Problem) implementation	800	x22859
1420A	Cubes Sorting math, sortings	900	x22834
1557B	Moamen and k-subarrays greedy, sortings	1100	x22817
1606A	AB Balance strings	900	x22812
1744B	Even-Odd Increments implementation, math	800	x22792
1514B	AND 0, Sum Big bitmasks, combinatorics, math	1200	x22773
1598A	Computer Game brute force, dfs and similar, dp, implementation	800	x22758