Problemset - Codeforces

→ Pay attention

Before contest
Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2)
3 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
1260B	Obtain Two Zeroes binary search, math	1300	x15883
1257C	Dominated Subarray greedy, implementation, sortings, strings, two pointers	1200	x16076
1255B	Fridge Lockers graphs, implementation	1100	x12022
1249C1	Good Numbers (easy version) brute force, greedy, implementation	1300	x15647
1249B2	Books Exchange (hard version) dfs and similar, dsu, math	1300	x16944
1245B	Restricted RPS constructive algorithms, dp, greedy	1200	x13889
1238B	Kill `Em All greedy, sortings	1300	x13692
1237B	Balanced Tunnel data structures, sortings, two pointers	1300	x16361
1236C	Labs constructive algorithms, greedy, implementation	1300	x10181
1234B2	Social Network (hard version) data structures, implementation	1300	x16995
1231C	Increasing Matrix greedy	1100	x3881
1227B	Box constructive algorithms	1200	x9706
1227A	Math Problem math	1100	x9841
1225B2	TV Subscriptions (Hard Version) implementation, two pointers	1300	x10762
1221C	Perfect Team binary search, math	1200	x21341
1221B	Knights constructive algorithms, greedy	1100	x11988
1220C	Substring Game in the Lesson games, greedy, strings	1300	x10294
1220B	Multiplication Table math, number theory	1300	x11670
1217A	Creating a Character binary search, math	1300	x15061
1216D	Swords math	1300	x11187
1214C	Bad Sequence data structures, greedy	1200	x13340
1214B	Badges brute force, math	1100	x10885
1213C	Book Reading math	1200	x18557
1213B	Bad Prices data structures, implementation	1100	x26949
1209B	Koala and Lights implementation, math, number theory	1300	x8182
1207B	Square Filling constructive algorithms, greedy, implementation	1200	x13306
1205A	Almost Equal constructive algorithms, greedy, math	1200	x14198
1203C	Common Divisors implementation, math	1300	x20907
1203B	Equal Rectangles greedy, math	1200	x16052
1202A	You Are Given Two Binary Strings... bitmasks, greedy	1100	x9419
1200B	Block Adventure dp, greedy	1200	x14024
1196B	Odd Sum Segments constructive algorithms, math	1200	x16708
1194C	From S To T implementation, strings	1300	x13281
1194B	Yet Another Crosses Problem implementation	1300	x10344
1191B	Tokitsukaze and Mahjong brute force, implementation	1200	x9620
1189B	Number Circle greedy, math, sortings	1100	x14344
1187B	Letters Shop binary search, implementation, strings	1300	x12304
1185C1	Exam in BerSU (easy version) greedy, sortings	1200	x11445
1185B	Email from Polycarp implementation, strings	1200	x13446
1184A1	Heidi Learns Hashing (Easy) brute force, math, number theory	1200	x5999
1182B	Plus from Picture dfs and similar, implementation, strings	1300	x11182
1178C	Tiles combinatorics, greedy, math	1300	x12051
1178B	WOW Factor dp, strings	1300	x15616
1176C	Lose it! dp, greedy, implementation	1300	x14273
1176B	Merge it! math	1100	x17225
1174C	Ehab and a Special Coloring Problem constructive algorithms, number theory	1300	x12044
1174B	Ehab Is an Odd Person sortings	1200	x15591
1173B	Nauuo and Chess constructive algorithms, greedy	1100	x9097
1166B	All the Vowels Please constructive algorithms, math, number theory	1100	x11511
1165C	Good String greedy	1300	x13043
1165A	Remainder implementation, math	1100	x13851
1159B	Expansion coefficient of the array implementation, math	1300	x7099
1157C1	Increasing Subsequence (easy version) greedy	1300	x12709
1157B	Long Number greedy	1300	x14795
1157A	Reachable Numbers implementation	1100	x15753
1155C	Alarm Clocks Everywhere math, number theory	1300	x9254
1155B	Game with Telephone Numbers games, greedy, implementation	1200	x11939
1154B	Make Them Equal math	1200	x16733
1153B	Serval and Toy Bricks constructive algorithms, greedy	1200	x9094
1152B	Neko Performs Cat Furrier Transform bitmasks, constructive algorithms, dfs and similar, math	1300	x8958
1149A	Prefix Sum Primes constructive algorithms, greedy, math, number theory	1200	x15405
1146B	Hate "A" implementation, strings	1100	x8638
1143B	Nirvana brute force, math, number theory	1200	x10586
1140D	Minimum Triangulation dp, greedy, math	1200	x12684
1140B	Good String implementation, strings	1200	x11366
1133C	Balanced Team sortings, two pointers	1200	x23508
1133B	Preparation for International Women's Day math, number theory	1200	x12986
1132A	Regular Bracket Sequence greedy, implementation	1100	x9645
1131C	Birthday binary search, greedy, sortings	1200	x14905
1130B	Two Cakes greedy	1200	x7939
1121B	Mike and Children brute force, implementation	1200	x9111
1121A	Technogoblet of Fire implementation, sortings	1100	x7203
1119B	Alyona and a Narrow Fridge binary search, flows, greedy, sortings	1300	x11240
1119A	Ilya and a Colorful Walk greedy, implementation	1100	x10866
1118B	Tanya and Candies implementation	1200	x12262
1117A	Best Subsegment implementation, math	1100	x11049
1115G1	AND oracle *special problem	1100	x389
1113B	Sasha and Magnetic Machines greedy, number theory	1300	x7750
1108C	Nice Garland brute force, greedy, math	1300	x12016
1108B	Divisors of Two Integers brute force, greedy, math, number theory	1100	x23342
1107C	Brutality greedy, sortings, two pointers	1300	x10024
1105B	Zuhair and Strings brute force, implementation, strings	1100	x9929
1105A	Salem and Sticks brute force, implementation	1100	x10998
1104B	Game with string data structures, implementation, math	1200	x15036
1102C	Doors Breaking and Repairing games	1200	x13154
1101B	Accordion greedy, implementation	1300	x10640
1100C	NN and the Optical Illusion binary search, geometry, math	1200	x10144
1100B	Build a Contest data structures, implementation	1300	x11187
1099C	Postcard constructive algorithms, implementation	1200	x9675
1099B	Squares and Segments binary search, constructive algorithms, math	1100	x11174
1097B	Petr and a Combination Lock bitmasks, brute force, dp	1200	x29265
1096B	Substring Removal combinatorics, math, strings	1300	x10654
1093C	Mishka and the Last Exam greedy	1300	x9363
1091B	New Year and the Treasure Geolocation brute force, constructive algorithms, greedy, implementation	1200	x10695
1090A	Company Merging greedy	1300	x4258
1085B	Div Times Mod math	1100	x9349
1084B	Kvass and the Fair Nut greedy, implementation	1200	x7836
1082A	Vasya and Book implementation, math	1200	x8626
1077C	Good Array	1300	x17746
1076C	Meme Problem binary search, math	1300	x12522