Problemset - Codeforces

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Codeforces Round 944 (Div. 4)
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Problems

#	Name
1621D	The Winter Hike constructive algorithms, greedy, math	2100	x3963
1322B	Present binary search, bitmasks, constructive algorithms, data structures, math, sortings	2100	x3947
486D	Valid Sets dfs and similar, dp, math, trees	2100	x3853
1363D	Guess The Maximums binary search, implementation, interactive, math	2100	x3828
1626D	Martial Arts Tournament binary search, brute force, greedy, math	2100	x3787
372C	Watching Fireworks is Fun data structures, dp, math	2100	x3634
1332E	Height All the Same combinatorics, constructive algorithms, math, matrices	2100	x3593
546E	Soldier and Traveling flows, graphs, math	2100	x3485
632D	Longest Subsequence brute force, math, number theory	2100	x3382
1606E	Arena combinatorics, dp, math	2100	x3340
1886D	Monocarp and the Set combinatorics, data structures, math	2100	x3324
1265E	Beautiful Mirrors data structures, dp, math, probabilities	2100	x3320
1025D	Recovering BST brute force, dp, math, number theory, trees	2100	x3297
1553E	Permutation Shift brute force, combinatorics, constructive algorithms, dfs and similar, dsu, graphs, math	2100	x3237
1392E	Omkar and Duck bitmasks, constructive algorithms, interactive, math	2100	x3236
1790F	Timofey and Black-White Tree brute force, dfs and similar, divide and conquer, graphs, greedy, math, shortest paths, trees	2100	x3150
1419E	Decryption constructive algorithms, implementation, math, number theory	2100	x3141
1271E	Common Number binary search, combinatorics, dp, math	2100	x3115
1151E	Number of Components combinatorics, data structures, dp, math	2100	x3039
1628D1	Game on Sum (Easy Version) combinatorics, dp, games, math	2100	x3016
1204D2	Kirk and a Binary String (hard version) data structures, greedy, math, strings	2100	x2972
1254B2	Send Boxes to Alice (Hard Version) constructive algorithms, greedy, math, number theory, ternary search, two pointers	2100	x2934
766E	Mahmoud and a xor trip bitmasks, constructive algorithms, data structures, dfs and similar, dp, math, trees	2100	x2821
1884D	Counting Rhyme dp, math, number theory	2100	x2805
1466F	Euclid's nightmare bitmasks, dfs and similar, dsu, graphs, greedy, math, sortings	2100	x2794
1832D1	Red-Blue Operations (Easy Version) binary search, greedy, implementation, math	2100	x2790
1166E	The LCMs Must be Large bitmasks, brute force, constructive algorithms, math, number theory	2100	x2782
1654D	Potion Brewing Class dfs and similar, math, number theory, trees	2100	x2779
525E	Anya and Cubes binary search, bitmasks, brute force, dp, math, meet-in-the-middle	2100	x2749
1748D	ConstructOR bitmasks, chinese remainder theorem, combinatorics, constructive algorithms, math, number theory	2100	x2664
1551D2	Domino (hard version) constructive algorithms, implementation, math	2100	x2657
1863E	Speedrun brute force, dfs and similar, dp, graphs, greedy, math, sortings, two pointers	2100	x2611
1660F2	Promising String (hard version) data structures, implementation, math, strings	2100	x2600
1778D	Flexible String Revisit combinatorics, dp, math, probabilities	2100	x2558
1864E	Guess Game bitmasks, data structures, games, math, probabilities, sortings, strings, trees	2100	x2465
955C	Sad powers binary search, math, number theory	2100	x2462
1511E	Colorings and Dominoes combinatorics, dp, greedy, math	2100	x2460
1202C	You Are Given a WASD-string... brute force, data structures, dp, greedy, implementation, math, strings	2100	x2447
980D	Perfect Groups dp, math, number theory	2100	x2412
1920E	Counting Binary Strings combinatorics, dp, math	2100	x2356
1710B	Rain binary search, brute force, data structures, geometry, greedy, implementation, math	2100	x2353
1593F	Red-Black Number dfs and similar, dp, implementation, math, meet-in-the-middle	2100	x2338
1761D	Carry Bit combinatorics, math	2100	x2329
1924B	Space Harbour data structures, implementation, math, sortings	2100	x2277
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2273
985D	Sand Fortress binary search, constructive algorithms, math	2100	x2254
1598E	Staircases brute force, combinatorics, data structures, dfs and similar, dp, implementation, math	2100	x2240
1787E	The Harmonization of XOR bitmasks, constructive algorithms, greedy, math	2100	x2178
431D	Random Task binary search, bitmasks, combinatorics, dp, math	2100	x2104
776E	The Holmes Children math, number theory	2100	x2101
571A	Lengthening Sticks combinatorics, implementation, math	2100	x2009
601B	Lipshitz Sequence data structures, math	2100	x2002
1525E	Assimilation IV combinatorics, dp, math, probabilities, two pointers	2100	x1967
1776G	Another Wine Tasting Event combinatorics, constructive algorithms, math, strings	2100	x1953
1811G1	Vlad and the Nice Paths (easy version) combinatorics, dp, math	2100	x1914
1413E	Solo mid Oracle greedy, math, ternary search	2100	x1910
145C	Lucky Subsequence combinatorics, dp, math	2100	x1883
1027E	Inverse Coloring combinatorics, dp, math	2100	x1860
919E	Congruence Equation chinese remainder theorem, math, number theory	2100	x1825
1510D	Digits dp, math, number theory	2100	x1798
1252K	Addition Robot data structures, math, matrices	2100	x1785
549H	Degenerate Matrix binary search, math	2100	x1785
1183F	Topforces Strikes Back brute force, math, sortings	2100	x1766
1267K	Key Storage combinatorics, math	2100	x1738
551D	GukiZ and Binary Operations combinatorics, implementation, math, matrices, number theory	2100	x1723
590B	Chip 'n Dale Rescue Rangers binary search, geometry, math	2100	x1705
1158C	Permutation recovery constructive algorithms, data structures, dfs and similar, graphs, greedy, math, sortings	2100	x1697
1914G1	Light Bulbs (Easy Version) brute force, combinatorics, dfs and similar, dp, dsu, graphs, math, trees	2100	x1673
992D	Nastya and a Game brute force, implementation, math	2100	x1595
5D	Follow Traffic Rules implementation, math	2100	x1519
837E	Vasya's Function binary search, implementation, math	2100	x1509
1032E	The Unbearable Lightness of Weights dp, math	2100	x1475
439E	Devu and Birthday Celebration combinatorics, dp, math	2100	x1475
1098B	Nice table brute force, constructive algorithms, greedy, math	2100	x1465
452C	Magic Trick combinatorics, math, probabilities	2100	x1395
463E	Caisa and Tree brute force, dfs and similar, math, number theory, trees	2100	x1386
266C	Below the Diagonal constructive algorithms, greedy, math	2100	x1335
818F	Level Generation binary search, math, ternary search	2100	x1288
895D	String Mark combinatorics, math, strings	2100	x1086
1146D	Frog Jumping dfs and similar, math, number theory	2100	x1078
441D	Valera and Swaps constructive algorithms, dsu, graphs, implementation, math, string suffix structures	2100	x1060
1599H	Hidden Fortress interactive, math	2100	x1011
268E	Playlist math, probabilities, sortings	2100	x976
615E	Hexagons binary search, implementation, math	2100	x964
336D	Vasily the Bear and Beautiful Strings combinatorics, math, number theory	2100	x932
1912B	Blueprint for Seating combinatorics, divide and conquer, math	2100	x921
217B	Blackboard Fibonacci brute force, math	2100	x854
225E	Unsolvable math, number theory	2100	x777
1387A	Graph *special problem, binary search, dfs and similar, dp, math, ternary search	2100	x671
491B	New York Hotel greedy, math	2100	x536
802D	Marmots (easy) math	2100	x438
212C	Cowboys combinatorics, dp, math	2100	x376
209B	Pixels constructive algorithms, math	2100	x357
86D	Powerful array data structures, implementation, math, two pointers	2200	x12526
559C	Gerald and Giant Chess combinatorics, dp, math, number theory	2200	x6146
1485D	Multiples and Power Differences constructive algorithms, graphs, math, number theory	2200	x4938
1092D1	Great Vova Wall (Version 1) greedy, implementation, math	2200	x4454
1438D	Powerful Ksenia bitmasks, constructive algorithms, math	2200	x4067
1333F	Kate and imperfection greedy, implementation, math, number theory, sortings, two pointers	2200	x3967
1474D	Cleaning data structures, dp, greedy, math	2200	x3871