Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
00:09:34

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Codeforces Round 941 (Div. 2)
00:09:34

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Problems

#	Name
1216F	Wi-Fi data structures, dp, greedy	2100	x2331
1920E	Counting Binary Strings combinatorics, dp, math	2100	x2333
1930D2	Sum over all Substrings (Hard Version) bitmasks, divide and conquer, dp, dsu, greedy, implementation, strings	2100	x2340
1152D	Neko and Aki's Prank dp, greedy, trees	2100	x2341
1202C	You Are Given a WASD-string... brute force, data structures, dp, greedy, implementation, math, strings	2100	x2351
1942D	Learning to Paint binary search, data structures, dfs and similar, dp, greedy, implementation, sortings	2100	x2358
980D	Perfect Groups dp, math, number theory	2100	x2407
1511E	Colorings and Dominoes combinatorics, dp, greedy, math	2100	x2456
1767C	Count Binary Strings data structures, dp	2100	x2493
1223E	Paint the Tree dp, sortings, trees	2100	x2515
1778D	Flexible String Revisit combinatorics, dp, math, probabilities	2100	x2532
1154F	Shovels Shop dp, greedy, sortings	2100	x2537
1185G1	Playlist for Polycarp (easy version) bitmasks, combinatorics, dp	2100	x2553
507E	Breaking Good dfs and similar, dp, graphs, shortest paths	2100	x2589
1771D	Hossam and (sub-)palindromic tree brute force, data structures, dfs and similar, dp, strings, trees	2100	x2591
1863E	Speedrun brute force, dfs and similar, dp, graphs, greedy, math, sortings, two pointers	2100	x2600
768E	Game of Stones bitmasks, dp, games	2100	x2630
1671E	Preorder combinatorics, divide and conquer, dp, dsu, hashing, sortings, trees	2100	x2640
960F	Pathwalks data structures, dp, graphs	2100	x2665
1913D	Array Collapse data structures, divide and conquer, dp, trees	2100	x2679
525E	Anya and Cubes binary search, bitmasks, brute force, dp, math, meet-in-the-middle	2100	x2722
1271D	Portals data structures, dp, greedy, implementation, sortings	2100	x2745
1029E	Tree with Small Distances dp, graphs, greedy	2100	x2767
1884D	Counting Rhyme dp, math, number theory	2100	x2782
771C	Bear and Tree Jumps dfs and similar, dp, trees	2100	x2787
766E	Mahmoud and a xor trip bitmasks, constructive algorithms, data structures, dfs and similar, dp, math, trees	2100	x2803
466D	Increase Sequence combinatorics, dp	2100	x2832
1547G	How Many Paths? dfs and similar, dp, graphs, trees	2100	x2840
1077F2	Pictures with Kittens (hard version) data structures, dp	2100	x2864
1482E	Skyline Photo data structures, divide and conquer, dp	2100	x2930
1472F	New Year's Puzzle brute force, dp, graph matchings, greedy, sortings	2100	x2932
354C	Vasya and Beautiful Arrays brute force, dp, number theory	2100	x2968
1367F1	Flying Sort (Easy Version) dp, greedy, two pointers	2100	x2981
1628D1	Game on Sum (Easy Version) combinatorics, dp, games, math	2100	x3006
936B	Sleepy Game dfs and similar, dp, games, graphs	2100	x3028
1151E	Number of Components combinatorics, data structures, dp, math	2100	x3031
1354E	Graph Coloring dfs and similar, dp, graphs	2100	x3060
1271E	Common Number binary search, combinatorics, dp, math	2100	x3110
985E	Pencils and Boxes binary search, data structures, dp, greedy, two pointers	2100	x3241
1025D	Recovering BST brute force, dp, math, number theory, trees	2100	x3294
1265E	Beautiful Mirrors data structures, dp, math, probabilities	2100	x3317
1606E	Arena combinatorics, dp, math	2100	x3325
1446C	Xor Tree binary search, bitmasks, data structures, divide and conquer, dp, trees	2100	x3385
1667B	Optimal Partition data structures, dp	2100	x3465
372C	Watching Fireworks is Fun data structures, dp, math	2100	x3619
1614D1	Divan and Kostomuksha (easy version) dp, number theory	2100	x3647
734E	Anton and Tree dfs and similar, dp, trees	2100	x3732
1393D	Rarity and New Dress dfs and similar, dp, implementation, shortest paths	2100	x3766
486D	Valid Sets dfs and similar, dp, math, trees	2100	x3851
1479B2	Painting the Array II constructive algorithms, data structures, dp, greedy, implementation	2100	x3894
1366E	Two Arrays binary search, brute force, combinatorics, constructive algorithms, dp, two pointers	2100	x3952
1117D	Magic Gems dp, math, matrices	2100	x4001
1516D	Cut binary search, data structures, dp, graphs, number theory, two pointers	2100	x4083
1560F2	Nearest Beautiful Number (hard version) bitmasks, brute force, constructive algorithms, dfs and similar, dp, greedy	2100	x4186
1409F	Subsequences of Length Two dp, strings	2100	x4265
1472G	Moving to the Capital dfs and similar, dp, graphs, shortest paths	2100	x4393
1420C2	Pokémon Army (hard version) data structures, divide and conquer, dp, greedy, implementation	2100	x4491
1006F	Xor-Paths bitmasks, brute force, dp, meet-in-the-middle	2100	x4627
319C	Kalila and Dimna in the Logging Industry dp, geometry	2100	x4708
837D	Round Subset dp, math	2100	x4781
796D	Police Stations constructive algorithms, dfs and similar, dp, graphs, shortest paths, trees	2100	x5119
455C	Civilization dfs and similar, dp, dsu, ternary search, trees	2100	x5122
1372D	Omkar and Circle brute force, dp, games, greedy	2100	x5285
1499D	The Number of Pairs dp, math, number theory	2100	x5441
1312E	Array Shrinking dp, greedy	2100	x5471
1433F	Zero Remainder Sum dp	2100	x5826
519E	A and B and Lecture Rooms binary search, data structures, dfs and similar, dp, trees	2100	x6161
1486D	Max Median binary search, data structures, dp	2100	x6682
1187E	Tree Painting dfs and similar, dp, trees	2100	x7402

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