Problemset - Codeforces

Please read the new rule regarding the restriction on the use of AI tools. ×

→ Pay attention

Before contest
Codeforces Round 974 (Div. 3)
06:58:18
Register now »

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
623A	Graph and String constructive algorithms, graphs	1800	x4465
622F	The Sum of the k-th Powers math	2600	x3808
622E	Ants in Leaves dfs and similar, greedy, sortings, trees	2200	x2061
622D	Optimal Number Permutation constructive algorithms	1900	x2975
622C	Not Equal on a Segment data structures, implementation	1700	x6533
621E	Wet Shark and Blocks dp, matrices	2000	x2803
621D	Rat Kwesh and Cheese brute force, constructive algorithms, math	2400	x981
621C	Wet Shark and Flowers combinatorics, math, number theory, probabilities	1700	x5445
620F	Xors on Segments data structures, strings, trees	2800	x733
620E	New Year Tree bitmasks, data structures, trees	2100	x5556
620D	Professor GukiZ and Two Arrays binary search, two pointers	2200	x1698
618G	Combining Slimes dp, math, matrices, probabilities	3300	x235
618F	Double Knapsack constructive algorithms, two pointers	3000	x1381
618E	Robot Arm data structures, geometry	2500	x643
618D	Hamiltonian Spanning Tree dfs and similar, dp, graph matchings, greedy, trees	2200	x1712
618C	Constellation geometry, implementation	1600	x4229
617E	XOR and Favorite Number data structures	2200	x8329
617D	Polyline constructive algorithms, implementation	1700	x4195
617C	Watering Flowers implementation	1600	x4857
616F	Expensive Strings data structures, sortings, string suffix structures, strings	2700	x584
616E	Sum of Remainders implementation, math, number theory	2200	x2872
616D	Longest k-Good Segment binary search, data structures, two pointers	1600	x9319
616C	The Labyrinth dfs and similar	1600	x5582
615E	Hexagons binary search, implementation, math	2100	x974
615D	Multipliers math, number theory	2000	x3874
615C	Running Track dp, greedy, strings, trees	2000	x2302
615B	Longtail Hedgehog dp, graphs	1600	x5086
613E	Puzzle Lover dp, hashing, strings	3200	x461
613D	Kingdom and its Cities dfs and similar, divide and conquer, dp, graphs, sortings, trees	2800	x2919
613C	Necklace constructive algorithms, math	2500	x1000
613B	Skills binary search, brute force, dp, greedy, sortings, two pointers	1900	x2208
613A	Peter and Snow Blower binary search, geometry, ternary search	1900	x3213
612F	Simba on the Circle dp	2600	x385
612E	Square Root of Permutation combinatorics, constructive algorithms, dfs and similar, graphs, math	2200	x1678
612D	The Union of k-Segments greedy, sortings	1800	x3815
611H	New Year and Forgotten Tree constructive algorithms, flows, graphs	3200	x581
611G	New Year and Cake geometry, two pointers	2900	x433
611F	New Year and Cleaning binary search, implementation	2500	x476
611E	New Year and Three Musketeers data structures, greedy, sortings	2400	x865
611D	New Year and Ancient Prophecy dp, hashing, strings	2000	x2584
610E	Alphabet Permutations data structures, strings	2500	x873
610D	Vika and Segments constructive algorithms, data structures, geometry, two pointers	2300	x1483
610C	Harmony Analysis constructive algorithms	1800	x2837
609F	Frogs and mosquitoes data structures, greedy	2500	x1239
609E	Minimum spanning tree for each edge data structures, dfs and similar, dsu, graphs, trees	2100	x7702
609D	Gadgets for dollars and pounds binary search, greedy, two pointers	2000	x2704
607E	Cross Sum binary search, geometry	3300	x251
607D	Power Tree data structures, trees	2600	x568
607C	Marbles hashing, strings	2500	x786
607B	Zuma dp	1900	x11981
607A	Chain Reaction binary search, dp	1600	x9521
606B	Testing Robots implementation	1600	x2744
605E	Intergalaxy Trips probabilities, shortest paths	2700	x1378
605D	Board Game data structures, dfs and similar	2500	x799
605C	Freelancer's Dreams geometry	2400	x1112
605B	Lazy Student constructive algorithms, data structures, graphs	1700	x3439
605A	Sorting Railway Cars constructive algorithms, greedy	1600	x7109
603E	Pastoral Oddities data structures, divide and conquer, dsu, math, trees	3000	x1231
603D	Ruminations on Ruminants geometry, math	2900	x340
603C	Lieges of Legendre games, math	2200	x1860
603B	Moodular Arithmetic combinatorics, dfs and similar, dsu, math, number theory	1800	x2569
603A	Alternative Thinking dp, greedy, math	1600	x7628
601E	A Museum Robbery data structures, dp	2800	x868
601D	Acyclic Organic Compounds data structures, dfs and similar, dsu, hashing, strings, trees	2400	x1139
601C	Kleofáš and the n-thlon dp, math, probabilities	2300	x1310
601B	Lipshitz Sequence data structures, math	2100	x2313
601A	The Two Routes graphs, shortest paths	1600	x11866
600F	Edge coloring of bipartite graph graphs	2800	x778
600E	Lomsat gelral data structures, dfs and similar, dsu, trees	2300	x13767
600D	Area of Two Circles' Intersection geometry	2000	x2261
600C	Make Palindrome constructive algorithms, greedy, strings	1800	x6086
600A	Extract Numbers implementation, strings	1600	x5199
599E	Sandy and Nuts bitmasks, dp, trees	2600	x638
599D	Spongebob and Squares brute force, math	1900	x2556
599C	Day at the Beach sortings	1600	x4621
598F	Cut Length geometry	2900	x370
598E	Chocolate Bar brute force, dp	2000	x4925
598D	Igor In the Museum dfs and similar, graphs, shortest paths	1700	x10944
598C	Nearest vectors geometry, sortings	2300	x4355
597C	Subsequences data structures, dp	1900	x4896
597B	Restaurant dp, greedy, sortings	1600	x4806
597A	Divisibility math	1600	x4489
596E	Wilbur and Strings dfs and similar, dp, graphs, strings	2500	x392
596D	Wilbur and Trees dp, math, probabilities, sortings	2300	x682
596C	Wilbur and Points combinatorics, greedy, sortings	1700	x2249
595B	Pasha and Phone binary search, math	1600	x2910
594E	Cutting the Line string suffix structures, strings	3100	x160
594D	REQ data structures, number theory	2500	x1603
594C	Edo and Magnets brute force, greedy, implementation, two pointers	2300	x685
594B	Max and Bike binary search, geometry	2500	x497
594A	Warrior and Archer games	2300	x1726
593E	Strange Calculation and Cats dp, matrices	2400	x618
593D	Happy Tree Party data structures, dfs and similar, graphs, math, trees	2400	x1238
593C	Beautiful Function constructive algorithms, math	2200	x281
593B	Anton and Lines geometry, sortings	1600	x4020
592E	BCPC binary search, geometry, two pointers	2700	x213
592D	Super M dfs and similar, dp, graphs, trees	2200	x2618
592C	The Big Race math	1800	x3058
590E	Birthday graph matchings, strings	3200	x777
590D	Top Secret Task dp	2300	x1208