Problemset - Codeforces

→ Pay attention

Before contest
Rayan Programming Contest 2024 - Selection (Codeforces Round, Div. 1 + Div. 2)
5 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
1101A	Minimum Integer math	1000	x17507
1100F	Ivan and Burgers data structures, divide and conquer, greedy, math	2500	x2508
1100E	Andrew and Taxi binary search, dfs and similar, graphs	2200	x2391
1100D	Dasha and Chess constructive algorithms, games, interactive	2500	x859
1100C	NN and the Optical Illusion binary search, geometry, math	1200	x10140
1100B	Build a Contest data structures, implementation	1300	x11185
1100A	Roman and Browser implementation	1000	x10181
1099F	Cookies binary search, data structures, dfs and similar, dp, games, trees	2400	x961
1099C	Postcard constructive algorithms, implementation	1200	x9673
1099B	Squares and Segments binary search, constructive algorithms, math	1100	x11174
1099A	Snowball implementation	800	x12939
1098F	Ж-function string suffix structures, strings	3500	x229
1098E	Fedya the Potter binary search, implementation, math, number theory	3400	x224
1098D	Eels data structures	2800	x775
1098C	Construct a tree binary search, constructive algorithms, dfs and similar, graphs, greedy, trees	2400	x1088
1098B	Nice table brute force, constructive algorithms, greedy, math	2100	x1696
1098A	Sum in the tree constructive algorithms, dfs and similar, greedy, trees	1600	x8812
1097H	Mateusz and an Infinite Sequence bitmasks, brute force, dp, strings	3400	x95
1097G	Vladislav and a Great Legend combinatorics, dp, trees	3000	x770
1097F	Alex and a TV Show bitmasks, combinatorics, number theory	2500	x1269
1097E	Egor and an RPG game constructive algorithms, greedy	3400	x485
1097D	Makoto and a Blackboard dp, math, number theory, probabilities	2200	x2875
1097C	Yuhao and a Parenthesis greedy, implementation	1400	x8454
1097B	Petr and a Combination Lock bitmasks, brute force, dp	1200	x29234
1097A	Gennady and a Card Game brute force, implementation	800	x39174
1096G	Lucky Tickets divide and conquer, dp, fft	2400	x1509
1096F	Inversion Expectation dp, math, probabilities	2300	x1813
1096E	The Top Scorer combinatorics, dp, math, probabilities	2500	x1025
1096D	Easy Problem dp	1800	x8186
1096C	Polygon for the Angle brute force, geometry	1600	x6838
1096B	Substring Removal combinatorics, math, strings	1300	x10648
1096A	Find Divisible greedy, implementation, math	800	x18822
1095F	Make It Connected dsu, graphs, greedy	1900	x6256
1095E	Almost Regular Bracket Sequence implementation	1900	x4140
1095D	Circular Dance implementation	1600	x7589
1095C	Powers Of Two bitmasks, greedy	1400	x17024
1095B	Array Stabilization implementation	900	x22222
1095A	Repeating Cipher implementation	800	x31981
1093G	Multidimensional Queries bitmasks, data structures	2300	x1931
1093F	Vasya and Array dp	2400	x1022
1093E	Intersection of Permutations data structures	2400	x1650
1093D	Beautiful Graph dfs and similar, graphs	1700	x9322
1093C	Mishka and the Last Exam greedy	1300	x9363
1093B	Letters Rearranging constructive algorithms, greedy, sortings, strings	900	x16617
1093A	Dice Rolling math	800	x17749
1092F	Tree with Maximum Cost dfs and similar, dp, trees	1900	x8303
1092E	Minimal Diameter Forest constructive algorithms, dfs and similar, greedy, trees	2000	x1760
1092D2	Great Vova Wall (Version 2) data structures, implementation	2200	x3018
1092D1	Great Vova Wall (Version 1) greedy, implementation, math	2200	x4837
1092C	Prefixes and Suffixes strings	1700	x5956
1092B	Teams Forming sortings	800	x26624
1092A	Uniform String implementation	800	x16340
1091H	New Year and the Tricolore Recreation games	3200	x430
1091G	New Year and the Factorisation Collaboration interactive, math, number theory	3200	x209
1091F	New Year and the Mallard Expedition constructive algorithms, greedy	2600	x827
1091E	New Year and the Acquaintance Estimation binary search, data structures, graphs, greedy, implementation, math, sortings	2400	x1013
1091D	New Year and the Permutation Concatenation combinatorics, dp, math	1700	x6812
1091C	New Year and the Sphere Transmission math, number theory	1400	x10065
1091B	New Year and the Treasure Geolocation brute force, constructive algorithms, greedy, implementation	1200	x10693
1091A	New Year and the Christmas Ornament brute force, implementation, math	800	x17648
1090M	The Pleasant Walk implementation	1000	x6364
1090L	Berland University greedy, math	2000	x1290
1090K	Right Expansion Of The Mind math	2000	x1092
1090J	Two Prefixes strings	2600	x450
1090I	Minimal Product	2000	x1071
1090H	Linearization graphs	2900	x99
1090G	Combostone games, implementation	2500	x110
1090F	How to Learn You Score constructive algorithms, interactive	2600	x326
1090E	Horseback Riding flows, graphs	2300	x606
1090D	Similar Arrays constructive algorithms	1800	x2109
1090C	New Year Presents constructive algorithms, data structures	2400	x504
1090B	LaTeX Expert	1900	x1432
1090A	Company Merging greedy	1300	x4257
1089M	Minegraphed constructive algorithms, graphs	2400	x603
1089L	Lazyland	900	x4026
1089K	King Kog's Reception data structures	2400	x1121
1089J	JS Minification greedy, implementation	3200	x133
1089I	Interval-Free Permutations combinatorics	2600	x382
1089H	Harder Satisfiability 2-sat, dfs and similar, graphs	3400	x112
1089G	Guest Student math	1500	x2952
1089F	Fractions math	1900	x1965
1089E	Easy Chess constructive algorithms	1700	x1995
1089D	Distance Sum graphs	3100	x100
1089C	Cactus Search interactive	2500	x422
1089B	Bimatching graphs	3200	x228
1089A	Alice the Fan dp	2200	x1150
1088F	Ehab and a weird weight formula data structures, trees	2800	x519
1088E	Ehab and a component choosing problem dp, greedy, math, trees	2400	x1494
1088D	Ehab and another another xor problem bitmasks, constructive algorithms, implementation, interactive	2000	x2876
1088C	Ehab and a 2-operation task constructive algorithms, greedy, math	1400	x8088
1088B	Ehab and subtraction implementation, sortings	1000	x12667
1088A	Ehab and another construction problem brute force, constructive algorithms	800	x16901
1086F	Forest Fires math	3500	x244
1085G	Beautiful Matrix combinatorics, data structures, dp	2900	x526
1085F	Rock-Paper-Scissors Champion	2500	x618
1085E	Vasya and Templates greedy, implementation, strings	2300	x1066
1085D	Minimum Diameter Tree constructive algorithms, implementation, trees	1700	x5454
1085C	Connect Three implementation, math	1600	x5452
1085B	Div Times Mod math	1100	x9349
1085A	Right-Left Cipher implementation, strings	800	x12200