Problemset - Codeforces

→ Pay attention

Before contest
2023 Post World Finals Online ICPC Challenge powered by Huawei
04:57:24
Register now »

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
441A	Valera and Antique Items implementation	1000	x18189
440D	Berland Federalization dp, trees	2200	x625
440C	One-Based Arithmetic brute force, dfs and similar, divide and conquer	1800	x889
440B	Balancer greedy, implementation	1600	x1915
440A	Forgotten Episode implementation	800	x7079
439E	Devu and Birthday Celebration combinatorics, dp, math	2100	x1474
439D	Devu and his Brother binary search, sortings, ternary search, two pointers	1700	x5792
439C	Devu and Partitioning of the Array brute force, constructive algorithms, implementation, number theory	1700	x3797
439B	Devu, the Dumb Guy implementation, sortings	1200	x14037
439A	Devu, the Singer and Churu, the Joker greedy, implementation	900	x24849
438E	The Child and Binary Tree combinatorics, divide and conquer, fft, number theory	3100	x1790
438D	The Child and Sequence data structures, math	2300	x7846
437E	The Child and Polygon dp, geometry	2500	x690
437D	The Child and Zoo dsu, sortings	1900	x3134
437C	The Child and Toy graphs, greedy, sortings	1400	x13506
437B	The Child and Set bitmasks, greedy, implementation, sortings	1500	x9154
437A	The Child and Homework implementation	1300	x8877
436F	Banners brute force, data structures, dp	3000	x358
436E	Cardboard Box data structures, greedy	2600	x1251
436D	Pudding Monsters dp	2800	x316
436C	Dungeons and Candies dsu, graphs, greedy, trees	1800	x2578
436B	Om Nom and Spiders implementation, math	1400	x3042
436A	Feed with Candy greedy	1500	x3392
435E	Special Graph	2500	x221
435D	Special Grid brute force, dp, greedy	2000	x746
435C	Cardiogram implementation	1600	x2522
435B	Pasha Maximizes greedy	1400	x6746
435A	Queue on Bus Stop implementation	1000	x9971
434E	Furukawa Nagisa's Tree binary search, divide and conquer, sortings, trees	3000	x252
434D	Nanami's Power Plant flows	2900	x398
433E	Tachibana Kanade's Tofu dp	2500	x471
433D	Nanami's Digital Board dsu, implementation	2000	x1036
433C	Ryouko's Memory Note implementation, math, sortings	1800	x2396
433B	Kuriyama Mirai's Stones dp, implementation, sortings	1200	x36309
433A	Kitahara Haruki's Gift brute force, implementation	1100	x15730
432E	Square Tiling constructive algorithms, greedy	2300	x662
432D	Prefixes and Suffixes dp, string suffix structures, strings, two pointers	2000	x8229
432C	Prime Swaps greedy, sortings	1800	x2436
432B	Football Kit brute force, greedy, implementation	1200	x11470
432A	Choosing Teams greedy, implementation, sortings	800	x56621
431E	Chemistry Experiment binary search, data structures, ternary search	2200	x900
431D	Random Task binary search, bitmasks, combinatorics, dp, math	2100	x2104
431C	k-Tree dp, implementation, trees	1600	x24523
431B	Shower Line brute force, implementation	1200	x10467
431A	Black Square implementation	800	x51438
430B	Balls Game brute force, two pointers	1400	x3628
430A	Points and Segments (easy) constructive algorithms, sortings	1600	x2217
429E	Points and Segments graphs	3000	x832
429D	Tricky Function data structures, divide and conquer, geometry	2200	x2577
429C	Guess the Tree bitmasks, constructive algorithms, dp, greedy, trees	2300	x900
429B	Working out dp	1600	x8284
429A	Xor-tree dfs and similar, trees	1300	x9988
427E	Police Patrol greedy, implementation, math, ternary search	2000	x1395
427D	Match & Catch dp, string suffix structures, strings	2200	x2088
427C	Checkposts dfs and similar, graphs, two pointers	1700	x12938
427B	Prison Transfer data structures, implementation	1100	x13695
427A	Police Recruits implementation	800	x72445
426B	Sereja and Mirroring implementation	1300	x3766
426A	Sereja and Mugs implementation	800	x8988
425E	Sereja and Sets dp	2500	x545
425D	Sereja and Squares binary search, data structures, hashing	2300	x1387
425C	Sereja and Two Sequences data structures, dp	2300	x881
425B	Sereja and Table bitmasks, greedy	2200	x1282
425A	Sereja and Swaps brute force, sortings	1500	x3809
424E	Colored Jenga dfs and similar, dp, probabilities	2500	x122
424D	Biathlon Track binary search, brute force, constructive algorithms, data structures, dp	2300	x557
424C	Magic Formulas math	1600	x5188
424B	Megacity binary search, greedy, implementation, sortings	1200	x7330
424A	Squats implementation	900	x8187
421D	Bug in Code binary search, data structures, sortings	1900	x493
421A	Pasha and Hamsters constructive algorithms, implementation	800	x5771
420E	Playing the ball geometry	2600	x213
420D	Cup Trick data structures	2200	x766
420C	Bug in Code data structures, graphs, implementation, two pointers	1900	x1194
420B	Online Meeting implementation	1800	x1009
420A	Start Up implementation	1000	x5883
418E	Tricky Password data structures	3100	x294
418D	Big Problems for Organizers data structures, graphs, trees	2800	x466
417E	Square Table constructive algorithms, math, probabilities	2400	x779
417D	Cunning Gena bitmasks, dp, greedy, sortings	1900	x2372
417C	Football constructive algorithms, graphs, implementation	1400	x4606
417B	Crash implementation	1400	x1748
417A	Elimination dp, implementation, math	1500	x2874
416E	President's Path dp, graphs, shortest paths	2500	x1387
416D	Population Size greedy, implementation, math	2400	x902
416C	Booking System binary search, dp, greedy, implementation	1600	x7632
416B	Art Union brute force, dp, implementation	1300	x8518
416A	Guess a number! greedy, implementation, two pointers	1400	x8650
415B	Mashmokh and Tokens binary search, greedy, implementation, math	1500	x6122
415A	Mashmokh and Lights implementation	900	x8780
414E	Mashmokh's Designed Problem data structures	3200	x191
414D	Mashmokh and Water Tanks binary search, data structures, greedy, trees, two pointers	2300	x673
414C	Mashmokh and Reverse Operation combinatorics, divide and conquer	2100	x2173
414B	Mashmokh and ACM combinatorics, dp, number theory	1400	x20824
414A	Mashmokh and Numbers constructive algorithms, number theory	1500	x9636
413E	Maze 2D data structures, divide and conquer	2200	x664
413D	2048 bitmasks, dp	2000	x749
413C	Jeopardy! greedy, math	1400	x2304
413B	Spyke Chatting implementation	1300	x1671
413A	Data Recovery implementation	1200	x2536