Problemset - Codeforces

→ Pay attention

Before contest
CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
4 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
996A	Hit the Lottery dp, greedy	800	x84787
580A	Kefa and First Steps brute force, dp, implementation	900	x84314
189A	Cut Ribbon brute force, dp	1300	x62999
706B	Interesting drink binary search, dp, implementation	1100	x58707
455A	Boredom dp	1500	x54575
363B	Fence brute force, dp	1100	x49429
1472B	Fair Division dp, greedy, math	800	x47723
489B	BerSU Ball dfs and similar, dp, graph matchings, greedy, sortings, two pointers	1200	x46757
1475B	New Year's Number brute force, dp, math	900	x46648
489C	Given Length and Sum of Digits... dp, greedy, implementation	1400	x44655
702A	Maximum Increase dp, greedy, implementation	800	x41708
313B	Ilya and Queries dp, implementation	1100	x41649
327A	Flipping Game brute force, dp, implementation	1200	x40129
368B	Sereja and Suffixes data structures, dp	1100	x39638
433B	Kuriyama Mirai's Stones dp, implementation, sortings	1200	x36563
1343C	Alternating Subsequence dp, greedy, two pointers	1200	x36475
550A	Two Substrings brute force, dp, greedy, implementation, strings	1500	x36419
1538A	Stone Game brute force, dp, greedy	800	x35834
466C	Number of Ways binary search, brute force, data structures, dp, two pointers	1700	x34691
894A	QAQ brute force, dp	800	x33011
1339A	Filling Diamonds brute force, dp, implementation, math	900	x31151
1862A	Gift Carpet dp, greedy, implementation, strings	800	x30961
1472C	Long Jumps dp, graphs	1100	x30140
1519B	The Cake Is a Lie dp, math	800	x30082
1941C	Rudolf and the Ugly String dp, greedy, strings	900	x29981
1182A	Filling Shapes dp, math	1000	x29508
1354B	Ternary String binary search, dp, implementation, two pointers	1200	x29360
476B	Dreamoon and WiFi bitmasks, brute force, combinatorics, dp, math, probabilities	1300	x29150
1526B	I Hate 1111 dp, math, number theory	1400	x28876
698A	Vacations dp	1400	x28595
550C	Divisibility by Eight brute force, dp, math	1500	x27343
1359B	New Theatre Square brute force, dp, greedy, implementation, two pointers	1000	x27110
1932A	Thorns and Coins dp, greedy, implementation	800	x27005
919B	Perfect Number binary search, brute force, dp, implementation, number theory	1100	x26982
1097B	Petr and a Combination Lock bitmasks, brute force, dp	1200	x26769
1941B	Rudolf and 121 brute force, dp, greedy, math	1000	x26689
1462B	Last Year's Substring dp, implementation, strings	800	x26620
545C	Woodcutters dp, greedy	1500	x26326
1472D	Even-Odd Game dp, games, greedy, sortings	1200	x26139
1206B	Make Product Equal One dp, implementation	900	x26137
1469B	Red and Blue dp, greedy	1000	x26135
1791E	Negatives and Positives dp, greedy, sortings	1100	x25790
1345B	Card Constructions binary search, brute force, dp, math	1100	x25522
1593B	Make it Divisible by 25 dfs and similar, dp, greedy, math, math	900	x25337
1272C	Yet Another Broken Keyboard combinatorics, dp, implementation	1200	x25228
1355B	Young Explorers dp, greedy, sortings	1200	x24910
431C	k-Tree dp, implementation, trees	1600	x24628
1360E	Polygon dp, graphs, implementation, shortest paths	1300	x24474
1829D	Gold Rush brute force, dfs and similar, dp, implementation	1000	x24371
1398C	Good Subarrays data structures, dp, math	1600	x24294
1180A	Alex and a Rhombus dp, implementation, math	800	x24277
1195C	Basketball Exercise dp	1400	x24188
732B	Cormen --- The Best Friend Of a Man dp, greedy	1000	x24113
474D	Flowers dp	1700	x24041
1382B	Sequential Nim dp, games	1100	x23939
1549B	Gregor and the Pawn Game dfs and similar, dp, flows, graph matchings, graphs, greedy, implementation	800	x23839
1539B	Love Song dp, implementation, strings	800	x23825
1926C	Vlad and a Sum of Sum of Digits dp, implementation	1200	x23476
1883C	Raspberries dp, math	1000	x22974
1598A	Computer Game brute force, dfs and similar, dp, implementation	800	x22818
651A	Joysticks dp, greedy, implementation, math	1100	x22530
1466B	Last minute enhancements dp, greedy	800	x22392
1406B	Maximum Product brute force, dp, greedy, implementation, sortings	1200	x22083
1559B	Mocha and Red and Blue dp, greedy	900	x22023
1709B	Also Try Minecraft data structures, dp, implementation	900	x21919
1470A	Strange Birthday Party binary search, dp, greedy, sortings, two pointers	1300	x21332
1526C1	Potions (Easy Version) brute force, data structures, dp, greedy	1500	x21298
1285B	Just Eat It! dp, greedy, implementation	1300	x21127
414B	Mashmokh and ACM combinatorics, dp, number theory	1400	x20949
1555C	Coin Rows brute force, constructive algorithms, dp, implementation	1300	x20942
1350B	Orac and Models dp, math, number theory	1400	x20687
1948B	Array Fix brute force, dp, greedy, implementation	1100	x20647
1950D	Product of Binary Decimals brute force, dp, implementation, number theory	1100	x20595
1499B	Binary Removals brute force, dp, greedy, implementation	1000	x20303
1861B	Two Binary Strings constructive algorithms, dp, greedy	1000	x20201
1598C	Delete Two Elements data structures, dp, implementation, math, two pointers	1200	x20114
166E	Tetrahedron dp, math, matrices	1500	x20038
1380C	Create The Teams brute force, dp, greedy, implementation, sortings	1400	x19939
1971D	Binary Cut dp, greedy, implementation, sortings, strings	1100	x19638
1917B	Erase First or Second Letter brute force, combinatorics, data structures, dp, strings	1100	x19570
1336A	Linova and Kingdom dfs and similar, dp, greedy, sortings, trees	1600	x19420
1323A	Even Subset Sum Problem brute force, dp, greedy, implementation	800	x19383
1631B	Fun with Even Subarrays dp, greedy	1100	x19379
961B	Lecture Sleep data structures, dp, implementation, two pointers	1200	x19331
1566B	MIN-MEX Cut bitmasks, constructive algorithms, dp, greedy	800	x19127
1451B	Non-Substring Subsequence dp, greedy, implementation, strings	900	x19013
1660C	Get an Even String dp, greedy, strings	1300	x18828
1743C	Save the Magazines constructive algorithms, dp, greedy	1100	x18677
1501B	Napoleon Cake dp, implementation, sortings	900	x18499
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x18484
1538F	Interesting Function binary search, dp, math, number theory	1500	x18417
1389C	Good String brute force, dp, greedy, two pointers	1500	x18412
1385D	a-Good String bitmasks, brute force, divide and conquer, dp, implementation	1500	x18408
1914D	Three Activities brute force, dp, greedy, implementation, sortings	1200	x18402
1037C	Equalize dp, greedy, strings	1300	x18348
1703F	Yet Another Problem About Pairs Satisfying an Inequality binary search, data structures, dp, greedy, sortings	1300	x18340
1618D	Array and Operations dp, greedy, math	1300	x18339
1418C	Mortal Kombat Tower dp, graphs, greedy, shortest paths	1500	x18316
1899C	Yarik and Array dp, greedy, two pointers	1100	x18310
676C	Vasya and String binary search, dp, strings, two pointers	1500	x18197

←