Problemset - Codeforces

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Before contest
Codeforces Round 941 (Div. 1)
4 days

Before contest
Codeforces Round 941 (Div. 2)
4 days

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Difficulty: —

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Problems

#	Name
1787C	Remove the Bracket dp, greedy, math	1600	x6664
731C	Socks dfs and similar, dsu, graphs, greedy	1600	x6762
723D	Lakes in Berland dfs and similar, dsu, graphs, greedy, implementation	1600	x6800
922C	Cave Painting brute force, number theory	1600	x6831
1243B2	Character Swap (Hard Version) strings	1600	x6843
1609D	Social Network dsu, graphs, greedy, implementation, trees	1600	x6893
1660E	Matrix and Shifts brute force, constructive algorithms, greedy, implementation	1600	x6939
1163B2	Cat Party (Hard Edition) data structures, implementation	1600	x6961
1059C	Sequence Transformation constructive algorithms, math	1600	x6968
682C	Alyona and the Tree dfs and similar, dp, graphs, trees	1600	x6982
1811D	Umka and a Long Flight constructive algorithms, implementation, math	1600	x6988
817C	Really Big Numbers binary search, brute force, dp, math	1600	x6998
1781C	Equal Frequencies brute force, constructive algorithms, greedy, implementation, sortings, strings	1600	x6999
605A	Sorting Railway Cars constructive algorithms, greedy	1600	x7028
939D	Love Rescue dfs and similar, dsu, graphs, greedy, strings	1600	x7079
1029C	Maximal Intersection greedy, math, sortings	1600	x7089
1238C	Standard Free2play dp, greedy, math	1600	x7093
1148B	Born This Way binary search, brute force, two pointers	1600	x7142
1806C	Sequence Master brute force, constructive algorithms, math	1600	x7157
785C	Anton and Fairy Tale binary search, math	1600	x7166
923B	Producing Snow binary search, data structures	1600	x7168
1797C	Li Hua and Chess constructive algorithms, greedy, interactive	1600	x7183
1671D	Insert a Progression brute force, constructive algorithms, greedy	1600	x7227
681C	Heap Operations constructive algorithms, data structures, greedy	1600	x7239
1133F1	Spanning Tree with Maximum Degree graphs	1600	x7249
659E	New Reform data structures, dfs and similar, dsu, graphs, greedy	1600	x7291
1928C	Physical Education Lesson brute force, math, number theory	1600	x7314
1095D	Circular Dance implementation	1600	x7328
735C	Tennis Championship combinatorics, constructive algorithms, greedy, math	1600	x7330
1774D	Same Count One brute force, constructive algorithms, greedy, implementation, two pointers	1600	x7380
1082B	Vova and Trophies greedy	1600	x7402
1875D	Jellyfish and Mex dp	1600	x7467
1840E	Character Blocking data structures, hashing, implementation	1600	x7470
1003D	Coins and Queries greedy	1600	x7488
1878D	Reverse Madness data structures, greedy	1600	x7502
603A	Alternative Thinking dp, greedy, math	1600	x7527
888D	Almost Identity Permutations combinatorics, dp, math	1600	x7581
416C	Booking System binary search, dp, greedy, implementation	1600	x7615
1778C	Flexible String bitmasks, brute force, strings	1600	x7617
835C	Star sky dp, implementation	1600	x7624
1065C	Make It Equal greedy	1600	x7629
1566D2	Seating Arrangements (hard version) data structures, greedy, implementation, sortings, two pointers	1600	x7682
1165E	Two Arrays and Sum of Functions greedy, math, sortings	1600	x7685
1284C	New Year and Permutation combinatorics, math	1600	x7687
1223C	Save the Nature binary search, greedy	1600	x7709
913C	Party Lemonade bitmasks, dp, greedy	1600	x7733
1452D	Radio Towers combinatorics, dp, math	1600	x7740
1025B	Weakened Common Divisor brute force, greedy, number theory	1600	x7748
1015D	Walking Between Houses constructive algorithms, greedy	1600	x7876
1941E	Rudolf and k Bridges binary search, data structures, dp, two pointers	1600	x7920
1665C	Tree Infection binary search, greedy, sortings, trees	1600	x8018
1615C	Menorah brute force, graphs, greedy, math	1600	x8025
1281B	Azamon Web Services greedy	1600	x8027
1801A	The Very Beautiful Blanket bitmasks, constructive algorithms	1600	x8070
1660D	Maximum Product Strikes Back brute force, implementation, math, two pointers	1600	x8077
1677A	Tokitsukaze and Strange Inequality brute force, data structures, dp	1600	x8091
1188A1	Add on a Tree trees	1600	x8142
1151D	Stas and the Queue at the Buffet greedy, math, sortings	1600	x8147
1109A	Sasha and a Bit of Relax dp, implementation	1600	x8255
231C	To Add or Not to Add binary search, sortings, two pointers	1600	x8266
429B	Working out dp	1600	x8278
1077D	Cutting Out binary search, sortings	1600	x8282
1290A	Mind Control brute force, data structures, implementation	1600	x8298
1766D	Lucky Chains math, number theory	1600	x8301
1098A	Sum in the tree constructive algorithms, dfs and similar, greedy, trees	1600	x8351
1795D	Triangle Coloring combinatorics, math	1600	x8393
1203D1	Remove the Substring (easy version) greedy, implementation	1600	x8407
346A	Alice and Bob games, math, number theory	1600	x8439
343A	Rational Resistance math, number theory	1600	x8498
1714D	Color with Occurrences brute force, data structures, dp, greedy, strings	1600	x8541
1523C	Compression and Expansion brute force, data structures, greedy, implementation, trees	1600	x8571
1698D	Fixed Point Guessing binary search, constructive algorithms, interactive	1600	x8628
1225C	p-binary bitmasks, brute force, math	1600	x8635
1907E	Good Triples brute force, combinatorics, number theory	1600	x8655
500B	New Year Permutation dfs and similar, dsu, graphs, greedy, math, sortings	1600	x8681
616D	Longest k-Good Segment binary search, data structures, two pointers	1600	x8686
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x8692
1658D1	388535 (Easy Version) bitmasks, math	1600	x8732
1198A	MP3 sortings, two pointers	1600	x8733
722C	Destroying Array data structures, dsu	1600	x8776
1921E	Eat the Chip brute force, games, greedy, math	1600	x8788
1612D	X-Magic Pair math, number theory	1600	x8803
780C	Andryusha and Colored Balloons dfs and similar, graphs, greedy, trees	1600	x8835
1530D	Secret Santa constructive algorithms, flows, graphs, greedy, math	1600	x8874
1461D	Divide and Summarize binary search, brute force, data structures, divide and conquer, implementation, sortings	1600	x8882
780B	The Meeting Place Cannot Be Changed binary search	1600	x8912
678C	Joty and Chocolate implementation, math, number theory	1600	x8920
704A	Thor brute force, data structures, implementation	1600	x8924
1771C	Hossam and Trainees greedy, math, number theory	1600	x8942
1036D	Vasya and Arrays greedy, two pointers	1600	x8942
788A	Functions again dp, two pointers	1600	x8946
1798D	Shocking Arrangement constructive algorithms, greedy, math	1600	x8964
570C	Replacement constructive algorithms, data structures, implementation	1600	x8964
1607E	Robot on the Board 1 implementation	1600	x9012
660C	Hard Process binary search, dp, two pointers	1600	x9016
1482C	Basic Diplomacy brute force, constructive algorithms, greedy, implementation	1600	x9073
518A	Vitaly and Strings constructive algorithms, strings	1600	x9103
1498C	Planar Reflections brute force, data structures, dp	1600	x9149
1198B	Welfare State binary search, brute force, data structures, sortings	1600	x9150
246D	Colorful Graph brute force, dfs and similar, graphs	1600	x9170