Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 957 (Div. 3)
3 days
Register now »

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
280A	Rectangle Puzzle geometry	2000	x1452
279E	Beautiful Decomposition dp, games, greedy, number theory	1900	x1419
279D	The Minimum Number of Variables bitmasks, dp	2200	x716
279C	Ladder dp, implementation, two pointers	1700	x8129
279B	Books binary search, brute force, implementation, two pointers	1400	x49756
279A	Point on Spiral brute force, geometry, implementation	1400	x5543
278B	New Problem brute force, strings	1500	x3427
277E	Binary Tree on Plane flows, trees	2400	x1248
277D	Google Code Jam dp, probabilities	2800	x331
277C	Game games, implementation	2400	x448
277B	Set of Points constructive algorithms, geometry	2300	x787
277A	Learning Languages dfs and similar, dsu	1400	x18358
276E	Little Girl and Problem on Trees data structures, graphs, trees	2100	x1569
276D	Little Girl and Maximum XOR bitmasks, dp, greedy, implementation, math	1700	x13350
276C	Little Girl and Maximum Sum data structures, greedy, implementation, sortings	1500	x24976
275B	Convex Shape constructive algorithms, implementation	1700	x2795
274E	Mirror Room data structures, implementation	3000	x306
274D	Lovely Matrix dfs and similar, graphs, greedy, sortings	2200	x1015
274C	The Last Hole! brute force, geometry	2600	x348
274B	Zero Tree dfs and similar, dp, greedy, trees	1800	x4932
274A	k-Multiple Free Set binary search, greedy, sortings	1500	x9932
273E	Dima and Game dp, games	2600	x363
273D	Dima and Figure dp	2400	x388
272E	Dima and Horses combinatorics, constructive algorithms, graphs	2200	x1178
272D	Dima and Two Sequences combinatorics, math, sortings	1600	x2598
272C	Dima and Staircase data structures, implementation	1500	x6712
272B	Dima and Sequence implementation, math	1400	x3950
271E	Three Horses constructive algorithms, math, number theory	2200	x480
271D	Good Substrings data structures, strings	1800	x10701
271C	Secret constructive algorithms, implementation	1500	x2920
270B	Multithreading data structures, greedy, implementation	1400	x4094
269E	String Theory geometry, math, strings	3100	x108
269D	Maximum Waterfall data structures, dp, graphs, sortings	2600	x433
269C	Flawed Flow constructive algorithms, flows, graphs, greedy	2100	x1626
269B	Greenhouse Effect dp	1700	x6204
269A	Magical Boxes greedy, math	1600	x3493
268E	Playlist math, probabilities, sortings	2100	x981
268D	Wall Bars dp	2300	x502
268C	Beautiful Sets of Points constructive algorithms, implementation	1500	x13446
267C	Berland Traffic math, matrices	2700	x160
267B	Dominoes dfs and similar, graphs	2000	x618
266E	More Queries to Array... data structures, math	2500	x770
266D	BerDonalds graphs, math, shortest paths	2400	x758
266C	Below the Diagonal constructive algorithms, greedy, math	2100	x1339
264E	Roadside Trees data structures, dp	3000	x423
264D	Colorful Stones dp, two pointers	2500	x411
264C	Choosing Balls dp	2000	x2800
264B	Good Sequences dp, number theory	1500	x9855
263E	Rhombus brute force, data structures, dp	2500	x397
263D	Cycle in Graph dfs and similar, graphs	1800	x3373
263C	Circle of Numbers brute force, dfs and similar, implementation	2000	x1062
261E	Maxim and Calculator brute force, dp, two pointers	2800	x406
261D	Maxim and Increasing Subsequence dp	2600	x555
261C	Maxim and Matrix constructive algorithms, dp, math	2000	x765
261B	Maxim and Restaurant dp, math, probabilities	1900	x1374
261A	Maxim and Discounts greedy, sortings	1400	x5119
260E	Dividing Kingdom binary search, brute force, data structures	2500	x453
260D	Black and White Tree constructive algorithms, dsu, graphs, greedy, trees	2100	x1376
260C	Balls and Boxes constructive algorithms, greedy, implementation	1700	x2939
260B	Ancient Prophesy brute force, implementation, strings	1600	x3778
260A	Adding Digits implementation, math	1400	x14323
258E	Little Elephant and Tree data structures, dfs and similar, trees	2400	x1043
258D	Little Elephant and Broken Sorting dp, math, probabilities	2600	x1223
258C	Little Elephant and LCM binary search, combinatorics, dp, math	2000	x1768
258B	Little Elephant and Elections brute force, combinatorics, dp	1900	x1427
257E	Greedy Elevator data structures, implementation	2200	x278
257D	Sum greedy, math	1900	x1559
257C	View Angle brute force, geometry, math	1800	x4239
256E	Lucky Arrays data structures	2400	x656
256D	Liars and Serge dp	2700	x256
255E	Furlo and Rublo and Game games, implementation, math	2200	x836
255D	Mr. Bender and Square binary search, implementation, math	1800	x1936
255C	Almost Arithmetical Progression brute force, dp	1500	x4660
254E	Dormitory dp, implementation	2100	x660
254D	Rats brute force, dfs and similar, graphs, implementation, shortest paths	2300	x506
254C	Anagram greedy, strings	1800	x1478
254B	Jury Size brute force, implementation	1500	x2136
253E	Printer binary search, data structures, implementation, sortings	2200	x523
253D	Table with Letters - 2 brute force, two pointers	2000	x822
253C	Text Editor data structures, dfs and similar, graphs, greedy, shortest paths	1600	x2551
253B	Physics Practical binary search, dp, sortings, two pointers	1400	x10452
252B	Unsorting Array brute force, sortings	1800	x1699
251E	Tree and Table dfs and similar, dp, implementation, trees	3000	x169
251D	Two Sets bitmasks, math	2700	x459
251C	Number Transformation dp, greedy, number theory	2000	x1013
251B	Playing with Permutations implementation, math	1800	x1257
250E	Mad Joe brute force	2000	x442
250D	Building Bridge geometry, ternary search, two pointers	1900	x882
250C	Movie Critics greedy	1600	x1896
250B	Restoring IPv6 implementation, strings	1500	x1960
249E	Endless Matrix math	2600	x290
249D	Donkey and Stars data structures, dp, geometry, math, sortings	2700	x399
248E	Piglet's Birthday dp, math, probabilities	2600	x570
248D	Sweets for Everyone! binary search, greedy, implementation	2300	x487
248C	Robo-Footballer binary search, geometry	2000	x802
248B	Chilly Willy math, number theory	1400	x5228
246E	Blood Cousins Return binary search, data structures, dfs and similar, dp, sortings	2400	x3041
246D	Colorful Graph brute force, dfs and similar, graphs	1600	x9286
246C	Beauty Pageant brute force, constructive algorithms, greedy	1600	x2612
245H	Queries for Number of Palindromes dp, hashing, strings	1800	x6233