Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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Problems

#	Name
1787C	Remove the Bracket dp, greedy, math	1600	x6668
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	x6832
1243B2	Character Swap (Hard Version) strings	1600	x6843
1609D	Social Network dsu, graphs, greedy, implementation, trees	1600	x6894
1660E	Matrix and Shifts brute force, constructive algorithms, greedy, implementation	1600	x6939
1059C	Sequence Transformation constructive algorithms, math	1600	x6968
1163B2	Cat Party (Hard Edition) data structures, implementation	1600	x6974
682C	Alyona and the Tree dfs and similar, dp, graphs, trees	1600	x6982
1811D	Umka and a Long Flight constructive algorithms, implementation, math	1600	x6990
817C	Really Big Numbers binary search, brute force, dp, math	1600	x7002
1781C	Equal Frequencies brute force, constructive algorithms, greedy, implementation, sortings, strings	1600	x7003
605A	Sorting Railway Cars constructive algorithms, greedy	1600	x7034
939D	Love Rescue dfs and similar, dsu, graphs, greedy, strings	1600	x7079
1029C	Maximal Intersection greedy, math, sortings	1600	x7090
1238C	Standard Free2play dp, greedy, math	1600	x7094
1148B	Born This Way binary search, brute force, two pointers	1600	x7143
1806C	Sequence Master brute force, constructive algorithms, math	1600	x7159
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	x7185
1671D	Insert a Progression brute force, constructive algorithms, greedy	1600	x7231
681C	Heap Operations constructive algorithms, data structures, greedy	1600	x7239
1133F1	Spanning Tree with Maximum Degree graphs	1600	x7282
659E	New Reform data structures, dfs and similar, dsu, graphs, greedy	1600	x7291
1928C	Physical Education Lesson brute force, math, number theory	1600	x7329
1095D	Circular Dance implementation	1600	x7329
735C	Tennis Championship combinatorics, constructive algorithms, greedy, math	1600	x7330
1774D	Same Count One brute force, constructive algorithms, greedy, implementation, two pointers	1600	x7382
1082B	Vova and Trophies greedy	1600	x7402
1840E	Character Blocking data structures, hashing, implementation	1600	x7471
1875D	Jellyfish and Mex dp	1600	x7473
1003D	Coins and Queries greedy	1600	x7492
1878D	Reverse Madness data structures, greedy	1600	x7513
603A	Alternative Thinking dp, greedy, math	1600	x7530
888D	Almost Identity Permutations combinatorics, dp, math	1600	x7583
416C	Booking System binary search, dp, greedy, implementation	1600	x7617
1778C	Flexible String bitmasks, brute force, strings	1600	x7619
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	x7683
1284C	New Year and Permutation combinatorics, math	1600	x7687
1223C	Save the Nature binary search, greedy	1600	x7714
1165E	Two Arrays and Sum of Functions greedy, math, sortings	1600	x7714
913C	Party Lemonade bitmasks, dp, greedy	1600	x7733
1452D	Radio Towers combinatorics, dp, math	1600	x7741
1025B	Weakened Common Divisor brute force, greedy, number theory	1600	x7748
1015D	Walking Between Houses constructive algorithms, greedy	1600	x7877
1941E	Rudolf and k Bridges binary search, data structures, dp, two pointers	1600	x7929
1665C	Tree Infection binary search, greedy, sortings, trees	1600	x8019
1615C	Menorah brute force, graphs, greedy, math	1600	x8027
1281B	Azamon Web Services greedy	1600	x8027
1801A	The Very Beautiful Blanket bitmasks, constructive algorithms	1600	x8071
1660D	Maximum Product Strikes Back brute force, implementation, math, two pointers	1600	x8080
1677A	Tokitsukaze and Strange Inequality brute force, data structures, dp	1600	x8092
1188A1	Add on a Tree trees	1600	x8142
1151D	Stas and the Queue at the Buffet greedy, math, sortings	1600	x8167
231C	To Add or Not to Add binary search, sortings, two pointers	1600	x8272
429B	Working out dp	1600	x8278
1077D	Cutting Out binary search, sortings	1600	x8286
1109A	Sasha and a Bit of Relax dp, implementation	1600	x8287
1290A	Mind Control brute force, data structures, implementation	1600	x8298
1766D	Lucky Chains math, number theory	1600	x8305
1098A	Sum in the tree constructive algorithms, dfs and similar, greedy, trees	1600	x8351
1795D	Triangle Coloring combinatorics, math	1600	x8399
1203D1	Remove the Substring (easy version) greedy, implementation	1600	x8408
346A	Alice and Bob games, math, number theory	1600	x8440
343A	Rational Resistance math, number theory	1600	x8498
1714D	Color with Occurrences brute force, data structures, dp, greedy, strings	1600	x8550
1523C	Compression and Expansion brute force, data structures, greedy, implementation, trees	1600	x8571
1698D	Fixed Point Guessing binary search, constructive algorithms, interactive	1600	x8631
1225C	p-binary bitmasks, brute force, math	1600	x8635
1907E	Good Triples brute force, combinatorics, number theory	1600	x8664
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	x8694
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x8719
1658D1	388535 (Easy Version) bitmasks, math	1600	x8732
1198A	MP3 sortings, two pointers	1600	x8734
722C	Destroying Array data structures, dsu	1600	x8777
1921E	Eat the Chip brute force, games, greedy, math	1600	x8789
1612D	X-Magic Pair math, number theory	1600	x8804
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	x8913
678C	Joty and Chocolate implementation, math, number theory	1600	x8920
704A	Thor brute force, data structures, implementation	1600	x8924
1036D	Vasya and Arrays greedy, two pointers	1600	x8944
1771C	Hossam and Trainees greedy, math, number theory	1600	x8946
788A	Functions again dp, two pointers	1600	x8946
570C	Replacement constructive algorithms, data structures, implementation	1600	x8964
1798D	Shocking Arrangement constructive algorithms, greedy, math	1600	x8969
1607E	Robot on the Board 1 implementation	1600	x9014
660C	Hard Process binary search, dp, two pointers	1600	x9018
1482C	Basic Diplomacy brute force, constructive algorithms, greedy, implementation	1600	x9074
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	x9151
246D	Colorful Graph brute force, dfs and similar, graphs	1600	x9171