Problemset - Codeforces

→ Pay attention

Before contest
Good Bye 2024: 2025 is NEAR
2 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
587B	Duff in Beach dp	2100	x1427
587A	Duff and Weight Lifting greedy	1500	x7675
586B	Laurenty and Shop implementation	1300	x5157
586A	Alena's Schedule implementation	900	x10201
585F	Digits of Number Pi dp, implementation, strings	3200	x690
585E	Present for Vitalik the Philatelist combinatorics, math, number theory	2900	x1122
585D	Lizard Era: Beginning meet-in-the-middle	2300	x1662
585C	Alice, Bob, Oranges and Apples number theory	2400	x990
585B	Phillip and Trains dfs and similar, graphs, shortest paths	1700	x3590
585A	Gennady the Dentist brute force, implementation	1800	x4344
584E	Anton and Ira constructive algorithms, greedy, math	2300	x1436
584D	Dima and Lisa brute force, math, number theory	1800	x9535
584C	Marina and Vasya constructive algorithms, greedy, strings	1700	x6271
584B	Kolya and Tanya combinatorics	1500	x12125
584A	Olesya and Rodion math	1000	x46107
583B	Robot's Task greedy, implementation	1200	x8741
583A	Asphalting Roads implementation	1000	x11480
582E	Boolean Function bitmasks, dp, expression parsing	3000	x504
582D	Number of Binominal Coefficients dp, math, number theory	3300	x663
582C	Superior Periodic Subarrays number theory	2400	x750
582B	Once Again... constructive algorithms, dp, matrices	1900	x3458
582A	GCD Table constructive algorithms, greedy, number theory	1700	x7840
581F	Zublicanes and Mumocrates dp, trees, two pointers	2400	x888
581E	Kojiro and Furrari dp, greedy	2800	x191
581D	Three Logos bitmasks, brute force, constructive algorithms, geometry, implementation, math	1700	x3836
581C	Developing Skills implementation, math, sortings	1400	x7349
581B	Luxurious Houses implementation, math	1100	x13120
581A	Vasya the Hipster implementation, math	800	x72823
580E	Kefa and Watch data structures, hashing, strings	2500	x2112
580D	Kefa and Dishes bitmasks, dp	1800	x10031
580C	Kefa and Park dfs and similar, graphs, trees	1500	x44411
580B	Kefa and Company binary search, sortings, two pointers	1500	x27076
580A	Kefa and First Steps brute force, dp, implementation	900	x90194
579B	Finding Team Member brute force, implementation, sortings	1300	x5302
579A	Raising Bacteria bitmasks	1000	x63241
578F	Mirror Box matrices, trees	3200	x554
578E	Walking! constructive algorithms, greedy	2700	x646
578D	LCS Again dp, greedy	2700	x878
578C	Weakness and Poorness ternary search	2000	x4557
578B	"Or" Game brute force, greedy	1700	x5249
578A	A Problem about Polyline geometry, math	1700	x4786
577B	Modulo Sum combinatorics, data structures, dp, two pointers	1900	x12472
577A	Multiplication Table implementation, number theory	1000	x40488
576E	Painting Edges binary search, data structures	3300	x1276
576D	Flights for Regular Customers dp, matrices	2700	x1433
576C	Points on Plane constructive algorithms, divide and conquer, geometry, greedy, sortings	2100	x3520
576B	Invariance of Tree constructive algorithms, dfs and similar, greedy, trees	2100	x1821
576A	Vasya and Petya's Game math, number theory	1500	x14130
575I	Robots protection data structures	2800	x480
575H	Bots combinatorics, dp, math, number theory	1800	x1719
575G	Run for beer dfs and similar, shortest paths	2200	x907
575F	Bulbo dp, greedy	2100	x1043
575E	Spectator Riots geometry	2800	x288
575D	Tablecity constructive algorithms, implementation	1700	x1879
575C	Party bitmasks, brute force, graph matchings	2700	x223
575B	Bribes dfs and similar, graphs, trees	2200	x1102
575A	Fibonotci data structures, math, matrices	2700	x811
574B	Bear and Three Musketeers brute force, dfs and similar, graphs, hashing	1500	x7852
574A	Bear and Elections greedy, implementation	1200	x9108
573E	Bear and Bowling data structures, greedy	3200	x1775
573D	Bear and Cavalry data structures, divide and conquer, dp	3000	x576
573C	Bear and Drawing constructive algorithms, dfs and similar, trees	2300	x973
573B	Bear and Blocks binary search, data structures, dp, math	1600	x5982
573A	Bear and Poker implementation, math, number theory	1300	x16784
572B	Order Book data structures, greedy, implementation, sortings	1300	x7087
572A	Arrays sortings	900	x16729
571E	Geometric Progressions math	3200	x272
571D	Campus binary search, data structures, dsu, trees	3100	x688
571C	CNF 2 constructive algorithms, dfs and similar, graphs, greedy	2500	x674
571B	Minimization dp, greedy, sortings	2000	x2665
571A	Lengthening Sticks combinatorics, implementation, math	2100	x2332
570E	Pig and Palindromes combinatorics, dp	2300	x1919
570D	Tree Requests binary search, bitmasks, constructive algorithms, dfs and similar, graphs, trees	2200	x7399
570C	Replacement constructive algorithms, data structures, implementation	1600	x9236
570B	Simple Game constructive algorithms, games, greedy, implementation, math	1300	x16245
570A	Elections implementation	1100	x13936
569B	Inventory greedy, math	1200	x7138
569A	Music implementation, math	1500	x4827
568E	Longest Increasing Subsequence data structures, dp	3000	x601
568D	Sign Posts brute force, geometry, math	2800	x308
568C	New Language 2-sat, greedy	2600	x869
568B	Symmetric and Transitive combinatorics, dp, math	1900	x2254
568A	Primes or Palindromes? brute force, implementation, math, number theory	1600	x5133
567F	Mausoleum dp	2400	x591
567E	President and Roads dfs and similar, graphs, hashing, shortest paths	2200	x1816
567D	One-Dimensional Battle Ships binary search, data structures, greedy, sortings	1700	x4846
567C	Geometric Progression binary search, data structures, dp	1700	x9649
567B	Berland National Library implementation	1300	x8474
567A	Lineland Mail greedy, implementation	900	x32723
566G	Max and Min geometry	2500	x337
566F	Clique in the Divisibility Graph dp, math, number theory	1500	x3708
566E	Restoring Map bitmasks, constructive algorithms, trees	3200	x638
566D	Restructuring Company data structures, dsu	1900	x3347
566C	Logistical Questions dfs and similar, divide and conquer, trees	3000	x772
566B	Replicating Processes constructive algorithms, greedy	2600	x274
566A	Matching Names dfs and similar, strings, trees	2300	x923
560B	Gerald is into Art constructive algorithms, implementation	1200	x7963
560A	Currency System in Geraldion implementation, sortings	1000	x17284
559E	Gerald and Path dp, sortings	3000	x956
559D	Randomizer combinatorics, geometry, probabilities	2800	x441