Problemset - Codeforces

Please subscribe to the official Codeforces channel in Telegram via the link https://t.me/codeforces_official. ×

→ Pay attention

Before contest
Codeforces Round 961 (Div. 2)
09:18:21
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
402D	Upgrading Array dp, greedy, math, number theory	1800	x2538
402C	Searching for Graph brute force, constructive algorithms, graphs	1500	x5763
402B	Trees in a Row brute force, implementation	1400	x3760
402A	Nuts greedy, math	1100	x4539
401E	Olympic Games math	2500	x168
401D	Roman and Numbers bitmasks, brute force, combinatorics, dp, number theory	2000	x4073
401C	Team constructive algorithms, greedy, implementation	1400	x19673
401B	Sereja and Contests greedy, implementation, math	1200	x4416
401A	Vanya and Cards implementation, math	800	x16006
400E	Inna and Binary Logic binary search, bitmasks, data structures	2100	x938
400D	Dima and Bacteria dsu, graphs, shortest paths	2000	x2838
400C	Inna and Huge Candy Matrix implementation, math	1500	x2878
400B	Inna and New Matrix of Candies brute force, implementation, schedules	1200	x7510
400A	Inna and Choose Options implementation	1000	x6429
399B	Red and Blue Balls		x1824
399A	Pages implementation		x4084
398E	Sorting Permutations		x90
398D	Instant Messanger data structures		x859
398C	Tree and Array constructive algorithms		x210
398B	Painting The Wall dp, probabilities		x1010
398A	Cards constructive algorithms, implementation		x917
397B	On Corruption and Numbers constructive algorithms, implementation, math		x742
397A	On Segment's Own Points implementation		x2601
396E	On Iteration of One Well-Known Function math		x148
396D	On Sum of Number of Inversions in Permutations combinatorics, math		x414
396C	On Changing Tree data structures, graphs, trees		x1558
396B	On Sum of Fractions math, number theory		x1061
396A	On Number of Decompositions into Multipliers combinatorics, math, number theory		x1492
394E	Lightbulb for Minister geometry		x116
394D	Physical Education and Buns brute force, implementation, math		x264
394C	Dominoes constructive algorithms, greedy		x514
394B	Very Beautiful Number math		x570
394A	Counting Sticks brute force, implementation		x2642
393B	Three matrices		x1959
393A	Nineteen		x6564
392E	Deleting Substrings		x176
392D	Three Arrays data structures		x213
392C	Yet Another Number Sequence combinatorics, math, matrices		x586
392B	Tower of Hanoi dp		x912
392A	Blocked Points math		x968
391F3	Stock Trading		x107
391F2	Stock Trading greedy		x107
391F1	Stock Trading dp		x172
391E2	Three Trees		x153
391E1	Three Trees		x116
391D2	Supercollider data structures		x192
391D1	Supercollider brute force		x207
391C3	The Tournament		x166
391C2	The Tournament greedy		x133
391C1	The Tournament brute force		x184
391B	Word Folding brute force		x384
391A	Genetic Engineering implementation, two pointers		x1710
390E	Inna and Large Sweet Matrix		x258
390D	Inna and Sweet Matrix constructive algorithms		x510
390C	Inna and Candy Boxes data structures		x626
390B	Inna, Dima and Song implementation		x1173
390A	Inna and Alarm Clock implementation		x3484
389B	Fox and Cross greedy, implementation	1100	x6848
389A	Fox and Number Game greedy, math	1000	x13953
388E	Fox and Meteor Shower geometry	3100	x120
388D	Fox and Perfect Sets math	2700	x441
388C	Fox and Card Game games, greedy, sortings	2000	x3267
388B	Fox and Minimal path bitmasks, constructive algorithms, graphs, implementation, math	1900	x2458
388A	Fox and Box Accumulation greedy, sortings	1400	x11422
387E	George and Cards binary search, data structures	2200	x870
387D	George and Interesting Graph graph matchings	2200	x972
387C	George and Number greedy, implementation	1700	x2174
387B	George and Round brute force, greedy, two pointers	1200	x12018
387A	George and Sleep implementation	900	x9607
386D	Game with Points dp, graphs, implementation, shortest paths	2100	x419
386C	Diverse Substrings dp, strings, two pointers	2000	x761
386B	Fly, freebies, fly! binary search, brute force, implementation	1400	x2131
386A	Second-Price Auction implementation	800	x6079
385E	Bear in the Field math, matrices	2300	x575
385D	Bear and Floodlight bitmasks, dp, geometry	2200	x802
385C	Bear and Prime Numbers binary search, brute force, data structures, dp, implementation, math, number theory	1700	x9509
385B	Bear and Strings brute force, greedy, implementation, math, strings	1200	x9724
385A	Bear and Raspberry brute force, greedy, implementation	1000	x16330
384B	Multitasking greedy, implementation, sortings, two pointers	1500	x3507
384A	Coder implementation	800	x16014
383E	Vowels combinatorics, divide and conquer, dp	2700	x2920
383D	Antimatter dp	2300	x2946
383C	Propagating tree data structures, dfs and similar, trees	2000	x6261
383B	Volcanoes binary search, implementation, sortings, two pointers	2500	x660
383A	Milking cows data structures, greedy	1600	x5226
382E	Ksenia and Combinatorics combinatorics, dp	2600	x370
382D	Ksenia and Pawns dfs and similar, graphs, implementation, trees	2200	x658
382C	Arithmetic Progression implementation, sortings	1700	x8219
382B	Number Busters binary search, math	2000	x1396
382A	Ksenia and Pan Scales greedy, implementation	1100	x12068
381B	Sereja and Stairs greedy, implementation, sortings	1100	x6656
381A	Sereja and Dima greedy, implementation, two pointers	800	x62942
380E	Sereja and Dividing data structures	2600	x296
380D	Sereja and Cinema combinatorics, math	2500	x459
380C	Sereja and Brackets data structures, schedules	2000	x14354
380B	Sereja and Tree graphs, implementation	2400	x531
380A	Sereja and Prefixes binary search, brute force	1600	x2664
379G	New Year Cactus dp	3100	x141
379F	New Year Tree data structures, divide and conquer, trees	2400	x2197
379E	New Year Tree Decorations geometry, schedules, sortings	2500	x338