Problemset - Codeforces

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Codeforces Round 987 (Div. 2)
05:50:22
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Problems

#	Name
1773K	King's Puzzle constructive algorithms	1900	x1438
1773J	Jumbled Trees constructive algorithms, math	2900	x109
1773I	Interactive Factorial Guessing brute force, games, implementation, interactive	2500	x490
1773H	Hot and Cold binary search, interactive	2600	x369
1773G	Game of Questions bitmasks, combinatorics, dp, fft, math, probabilities	2800	x389
1773E	Easy Assembly greedy, sortings	1400	x4949
1773D	Dominoes combinatorics, flows, graph matchings, greedy	2600	x479
1773C	Cactus Meets Torus	3500	x30
1773B	BinCoin binary search, divide and conquer, hashing, implementation, probabilities, trees	2200	x787
1773A	Amazing Trick constructive algorithms, graph matchings, math, probabilities	1900	x1565
1772G	Gaining Rating binary search, greedy, implementation, math, sortings, two pointers	2200	x1372
1772F	Copy of a Copy of a Copy constructive algorithms, dfs and similar, graphs, implementation, sortings	2000	x2407
1772E	Permutation Game games	1700	x6838
1772D	Absolute Sorting constructive algorithms, math	1400	x16105
1771F	Hossam and Range Minimum Query binary search, bitmasks, data structures, hashing, probabilities, strings, trees	2500	x1173
1771E	Hossam and a Letter brute force, dp, implementation, two pointers	2500	x709
1771D	Hossam and (sub-)palindromic tree brute force, data structures, dfs and similar, dp, strings, trees	2100	x2793
1771C	Hossam and Trainees greedy, math, number theory	1600	x9806
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x14682
1770H	Koxia, Mahiru and Winter Festival constructive algorithms	3500	x106
1770G	Koxia and Bracket divide and conquer, fft, math	3400	x159
1770F	Koxia and Sequence bitmasks, combinatorics, dp, math, number theory	3100	x676
1770E	Koxia and Tree combinatorics, dfs and similar, dp, dsu, math, probabilities, trees	2400	x1378
1770D	Koxia and Game constructive algorithms, data structures, dfs and similar, dsu, flows, games, graph matchings, graphs, implementation	2000	x3887
1770C	Koxia and Number Theory brute force, chinese remainder theorem, math, number theory	1700	x8654
1769D3	Игра в Девятку III *special problem, brute force	2300	x119
1769D2	Игра в Девятку II *special problem, brute force	2200	x197
1769D1	Игра в Девятку I *special problem, brute force, dp	1800	x384
1769B2	Копирование файлов II *special problem, binary search, brute force, math	1400	x883
1768F	Wonderful Jump dp, greedy	2900	x859
1768E	Partial Sorting combinatorics, math, number theory	2300	x1904
1768D	Lucky Permutation constructive algorithms, dfs and similar, graphs, greedy	1800	x7249
1767F	Two Subtrees data structures, trees	3100	x277
1767E	Algebra Flash bitmasks, brute force, dp, graphs, math, meet-in-the-middle, trees	2500	x940
1767D	Playoff combinatorics, constructive algorithms, dp, greedy, math	1500	x10004
1767C	Count Binary Strings data structures, dp	2100	x2678
1766F	MCF flows	2800	x270
1766E	Decomposition binary search, brute force, data structures, divide and conquer, dp, two pointers	2300	x1225
1766D	Lucky Chains math, number theory	1600	x9006
1765N	Number Reduction greedy	1500	x4906
1765L	Project Manager brute force, data structures, implementation	2400	x588
1765K	Torus Path greedy, math	1500	x5900
1765J	Hero to Zero graph matchings, math	2900	x211
1765I	Infinite Chess implementation, shortest paths	2800	x193
1765H	Hospital Queue binary search, graphs, greedy, implementation	2200	x1306
1765G	Guess the String constructive algorithms, interactive, probabilities	2600	x397
1765F	Chemistry Lab dp, geometry, probabilities	2200	x609
1765D	Watch the Videos binary search, constructive algorithms, two pointers	1700	x4229
1765C	Card Guessing combinatorics, dp, probabilities	2600	x396
1765A	Access Levels bitmasks, dsu, flows, graph matchings	2400	x700
1764H	Doremy's Paint 2 data structures	3400	x193
1764G3	Doremy's Perfect DS Class (Hard Version) binary search, interactive	3300	x472
1764G2	Doremy's Perfect DS Class (Medium Version) binary search, interactive	3000	x536
1764G1	Doremy's Perfect DS Class (Easy Version) binary search, interactive	2900	x593
1764F	Doremy's Experimental Tree brute force, constructive algorithms, dfs and similar, dsu, sortings, trees	2500	x976
1764E	Doremy's Number Line dp, greedy, sortings	2400	x1249
1764D	Doremy's Pegging Game combinatorics, dp, math	2000	x2792
1764C	Doremy's City Construction graphs, greedy	1400	x9470
1763F	Edge Queries data structures, dfs and similar, dp, dsu, graphs, trees	3000	x480
1763E	Node Pairs dp, graphs, math, number theory	2200	x1823
1763D	Valid Bitonic Permutations combinatorics, dp, implementation, math, number theory	2200	x2077
1763C	Another Array Problem brute force, constructive algorithms, greedy	2000	x6685
1762G	Unequal Adjacent Elements constructive algorithms, sortings	3100	x102
1762F	Good Pairs binary search, data structures, dp	2600	x666
1762E	Tree Sum combinatorics, math, trees	2600	x680
1762D	GCD Queries constructive algorithms, interactive, number theory	2100	x3684
1762C	Binary Strings are Fun combinatorics, math	1400	x9244
1761G	Centroid Guess interactive, probabilities, trees	3500	x113
1761F2	Anti-median (Hard Version) combinatorics, dp, math	3500	x83
1761F1	Anti-median (Easy Version) dp, math	3100	x210
1761E	Make It Connected binary search, brute force, constructive algorithms, dsu, graphs, greedy, matrices, trees, two pointers	2400	x1863
1761D	Carry Bit combinatorics, math	2100	x2480
1761C	Set Construction constructive algorithms, dfs and similar, graphs, greedy	1400	x9649
1760G	SlavicG's Favorite Problem bitmasks, dfs and similar, graphs	1700	x7440
1760F	Quests binary search, greedy, sortings	1500	x12395
1759G	Restore the Permutation binary search, constructive algorithms, data structures, greedy, math	1900	x4526
1759F	All Possible Digits binary search, data structures, greedy, math, number theory	1800	x3961
1759E	The Humanoid brute force, dp, sortings	1500	x10942
1759D	Make It Round brute force, number theory	1400	x13852
1758F	Decent Division constructive algorithms, data structures	3000	x173
1758E	Tick, Tock combinatorics, dfs and similar, dsu, graphs	2500	x856
1758D	Range = √Sum binary search, brute force, constructive algorithms, math, two pointers	1800	x7388
1758C	Almost All Multiples greedy, number theory	1400	x13752
1753F	Minecraft Series brute force, two pointers	3500	x212
1753E	N Machines binary search, brute force, greedy	3300	x333
1753D	The Beach constructive algorithms, dfs and similar, graphs, shortest paths	2400	x1780
1753C	Wish I Knew How to Sort dp, math, probabilities	2000	x4556
1753B	Factorial Divisibility math, number theory	1600	x12972
1753A2	Make Nonzero Sum (hard version) constructive algorithms, dp, greedy	1500	x10468
1750H	BinaryStringForces constructive algorithms, data structures, dp	3500	x84
1750G	Doping combinatorics, dp, math	3300	x249
1750F	Majority combinatorics, dp, math, strings	2700	x921
1750E	Bracket Cost binary search, data structures, divide and conquer, dp, greedy, strings	2400	x1436
1750D	Count GCD combinatorics, math, number theory	1800	x5980
1750C	Complementary XOR constructive algorithms, implementation	1400	x9598
1749F	Distance to the Path data structures, dfs and similar, trees	2800	x524
1749E	Cactus Wall constructive algorithms, dfs and similar, graphs, shortest paths	2400	x1740
1749D	Counting Arrays combinatorics, dp, math, number theory	1900	x5621
1749C	Number Game binary search, data structures, games, greedy, implementation	1400	x14076
1748F	Circular Xor Reversal bitmasks, constructive algorithms	3000	x338