Problemset - Codeforces

Please read the new rule regarding the restriction on the use of AI tools. ×

→ Pay attention

Before contest
Codeforces Round 977 (Div. 2)
2 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
884B	Japanese Crosswords Strike Back implementation	1100	x6871
883M	Quadcopter Competition greedy, math	1100	x3586
883F	Lost in Transliteration implementation	1300	x2268
879B	Table Tennis data structures, implementation	1200	x12367
877A	Alex and broken contest implementation, strings	1100	x10869
876B	Divisiblity of Differences implementation, math, number theory	1300	x9139
875A	Classroom Watch brute force, math	1200	x9579
870C	Maximum splitting dp, greedy, math, number theory	1300	x9094
870B	Maximum of Maximums of Minimums greedy	1200	x9484
869B	The Eternal Immortality math	1100	x13589
869A	The Artful Expedient brute force, implementation	1100	x9458
862B	Mahmoud and Ehab and the bipartiteness dfs and similar, graphs, trees	1300	x17544
858A	k-rounding brute force, math, number theory	1100	x8010
854B	Maxim Buys an Apartment constructive algorithms, math	1200	x8192
845A	Chess Tourney implementation, sortings	1100	x7757
844B	Rectangles combinatorics, math	1300	x7379
842B	Gleb And Pizza geometry	1100	x10325
842A	Kirill And The Game brute force, two pointers	1200	x10179
841B	Godsend games, math	1100	x12264
840A	Leha and Function combinatorics, greedy, math, number theory, sortings	1300	x6997
835B	The number on the board greedy	1100	x11033
834B	The Festive Evening data structures, implementation	1100	x8771
828B	Black Square implementation	1300	x5691
828A	Restaurant Tables implementation	1200	x7914
825A	Binary Protocol implementation	1100	x7689
821B	Okabe and Banana Trees brute force, math	1300	x5758
820B	Mister B and Angle in Polygon constructive algorithms, geometry, math	1300	x5204
817A	Treasure Hunt implementation, math, number theory	1200	x6233
814B	An express train to reveries constructive algorithms	1300	x5626
813A	The Contest implementation	1100	x5087
812A	Sagheer and Crossroads implementation	1200	x6211
811B	Vladik and Complicated Book implementation, sortings	1200	x6482
810B	Summer sell-off greedy, sortings	1300	x11421
808B	Average Sleep Time data structures, implementation, math	1300	x7595
807B	T-Shirt Hunt brute force, implementation	1300	x3547
803B	Distances to Zero constructive algorithms	1200	x6560
802M	April Fools' Problem (easy) greedy, sortings	1200	x3118
801A	Vicious Keyboard brute force	1100	x7310
799A	Carrot Cakes brute force, implementation	1100	x18806
798B	Mike and strings brute force, dp, strings	1300	x8386
797A	k-Factorization implementation, math, number theory	1100	x15297
796B	Find The Bone implementation	1300	x9065
794B	Cutting Carrot geometry, math	1200	x6523
792B	Counting-out Rhyme implementation	1300	x6006
792A	New Bus Route implementation, sortings	1100	x8946
789A	Anastasia and pebbles implementation, math	1100	x9317
787B	Not Afraid greedy, implementation, math	1300	x5604
787A	The Monster brute force, math, number theory	1200	x11349
785B	Anton and Classes greedy, sortings	1100	x10227
779C	Dishonest Sellers constructive algorithms, greedy, sortings	1200	x11816
779B	Weird Rounding brute force, greedy	1100	x10318
777B	Game of Credit Cards data structures, dp, greedy, sortings	1300	x9448
776B	Sherlock and his girlfriend constructive algorithms, number theory	1200	x20775
774C	Maximum Number *special problem, constructive algorithms, greedy, implementation	1200	x4086
770B	Maximize Sum of Digits *special problem, implementation, math	1300	x2816
769B	News About Credit *special problem, greedy, two pointers	1200	x3287
767A	Snacktower data structures, implementation	1100	x20173
765C	Table Tennis Game 2 math	1200	x6953
765B	Code obfuscation greedy, implementation, strings	1100	x7117
761B	Dasha and friends brute force, implementation, math	1300	x6849
758B	Blown Garland brute force, implementation, number theory	1100	x10199
755C	PolandBall and Forest dfs and similar, dsu, graphs, interactive, trees	1300	x12365
755B	PolandBall and Game binary search, data structures, games, greedy, sortings, strings	1100	x11219
754B	Ilya and tic-tac-toe game brute force, implementation	1100	x7244
754A	Lesha and array splitting constructive algorithms, greedy, implementation	1200	x8687
750B	New Year and North Pole geometry, implementation	1300	x9474
749B	Parallelogram is Back brute force, constructive algorithms, geometry	1200	x8491
747C	Servers implementation	1300	x4639
743B	Chloe and the sequence binary search, bitmasks, constructive algorithms, implementation	1200	x14695
743A	Vladik and flights constructive algorithms, greedy, implementation	1200	x11050
740B	Alyona and flowers constructive algorithms	1200	x8281
740A	Alyona and copybooks brute force, implementation	1300	x8904
735B	Urbanization greedy, number theory, sortings	1100	x8385
733B	Parade math	1100	x10675
732C	Sanatorium binary search, constructive algorithms, greedy, implementation, math	1200	x9714
731B	Coupons and Discounts constructive algorithms, greedy	1100	x7961
730H	Delete Them constructive algorithms, implementation	1300	x2993
729B	Spotlights dp, implementation	1200	x7934
725B	Food on the Plane implementation, math	1200	x5134
723B	Text Document Analysis expression parsing, implementation, strings	1100	x10181
722B	Verse Pattern implementation, strings	1200	x6466
722A	Broken Clock brute force, implementation	1300	x6634
721B	Passwords implementation, math, sortings, strings	1100	x12082
719A	Vitya in the Countryside implementation	1100	x15539
717C	Potions Homework implementation, sortings	1200	x3939
716B	Complete the Word greedy, two pointers	1300	x12175
714B	Filya and Homework implementation, sortings	1200	x14474
714A	Meeting of Old Friends implementation, math	1100	x10777
712B	Memory and Trident implementation, strings	1100	x9752
708A	Letters Cyclic Shift constructive algorithms, greedy, implementation, strings	1200	x8990
707B	Bakery graphs	1300	x12924
706B	Interesting drink binary search, dp, implementation	1100	x62776
705B	Spider Man games, math	1100	x9122
701B	Cells Not Under Attack data structures, math	1200	x11727
690F1	Tree of Life (easy)	1300	x2158
690D1	The Wall (easy)	1200	x2613
690C1	Brain Network (easy)	1300	x2755
690A1	Collective Mindsets (easy)	1100	x2819
686B	Little Robber Girl's Zoo constructive algorithms, implementation, sortings	1100	x7783
683A	The Check of the Point *special problem, geometry	1200	x787