Problemset - Codeforces

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Codeforces Round 976 (Div. 2) and Divide By Zero 9.0
06:12:22
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Problems

#	Name
1778C	Flexible String bitmasks, brute force, strings	1600	x8197
1777F	Comfortably Numb bitmasks, data structures, divide and conquer, strings, trees	2400	x936
1777E	Edge Reverse binary search, dfs and similar, graphs, trees	2200	x1822
1777D	Score of a Tree bitmasks, combinatorics, dfs and similar, dp, math, probabilities, trees	1900	x3472
1777C	Quiz Master binary search, math, number theory, sortings, two pointers	1700	x8495
1776N	Count Permutations math	3500	x82
1776M	Parmigiana With Seafood binary search, dp, greedy, trees	3000	x372
1776L	Controllers binary search, math	1500	x6003
1776K	Uniform Chemistry dp, math	3200	x68
1776J	Italian Data Centers graphs, shortest paths	2500	x652
1776I	Spinach Pizza games, geometry, greedy, interactive	2500	x676
1776G	Another Wine Tasting Event combinatorics, constructive algorithms, math, strings	2100	x2044
1776F	Train Splitting constructive algorithms, graphs, greedy	1700	x3443
1776E	Crossing the Railways data structures, dp	3500	x70
1776D	Teamwork constructive algorithms, greedy, math	2800	x363
1776C	Library game games, greedy, interactive, sortings	2500	x798
1776B	Vittorio Plays with LEGO Bricks dp, geometry	2200	x1323
1775F	Laboratory on Pluto constructive algorithms, dp, greedy, math	2500	x763
1775E	The Human Equation greedy, implementation	2100	x3198
1775D	Friendly Spiders dfs and similar, graphs, math, number theory, shortest paths	1800	x6254
1775C	Interesting Sequence bitmasks, math	1600	x10419
1774H	Maximum Permutation constructive algorithms	3500	x134
1774G	Segment Covering brute force, combinatorics, constructive algorithms, data structures, dp, trees	3200	x438
1774F2	Magician and Pigs (Hard Version) binary search, brute force, data structures, implementation	2700	x678
1774F1	Magician and Pigs (Easy Version) brute force, data structures, implementation	2400	x1077
1774E	Two Chess Pieces dfs and similar, dp, greedy, trees	1900	x3469
1774D	Same Count One brute force, constructive algorithms, greedy, implementation, two pointers	1600	x7847
1774B	Coloring constructive algorithms, greedy, math	1500	x12234
1773L	Lisa's Sequences dp	3500	x43
1773K	King's Puzzle constructive algorithms	1900	x1410
1773J	Jumbled Trees constructive algorithms, math	2900	x106
1773I	Interactive Factorial Guessing brute force, games, implementation, interactive	2500	x476
1773H	Hot and Cold binary search, interactive	2600	x357
1773G	Game of Questions bitmasks, combinatorics, dp, fft, math, probabilities	2800	x362
1773E	Easy Assembly greedy, sortings	1400	x4863
1773D	Dominoes combinatorics, flows, graph matchings, greedy	2600	x463
1773C	Cactus Meets Torus	3500	x30
1773B	BinCoin binary search, divide and conquer, hashing, implementation, probabilities, trees	2200	x765
1773A	Amazing Trick constructive algorithms, graph matchings, math, probabilities	1900	x1533
1772G	Gaining Rating binary search, greedy, implementation, math, sortings, two pointers	2200	x1347
1772F	Copy of a Copy of a Copy constructive algorithms, dfs and similar, graphs, implementation, sortings	2000	x2360
1772E	Permutation Game games	1700	x6755
1772D	Absolute Sorting constructive algorithms, math	1400	x15868
1771F	Hossam and Range Minimum Query binary search, bitmasks, data structures, hashing, probabilities, strings, trees	2500	x1132
1771E	Hossam and a Letter brute force, dp, implementation, two pointers	2500	x697
1771D	Hossam and (sub-)palindromic tree brute force, data structures, dfs and similar, dp, strings, trees	2100	x2756
1771C	Hossam and Trainees greedy, math, number theory	1600	x9670
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x14325
1770H	Koxia, Mahiru and Winter Festival constructive algorithms	3500	x104
1770G	Koxia and Bracket divide and conquer, fft, math	3400	x158
1770F	Koxia and Sequence bitmasks, combinatorics, dp, math, number theory	3100	x666
1770E	Koxia and Tree combinatorics, dfs and similar, dp, dsu, math, probabilities, trees	2400	x1353
1770D	Koxia and Game constructive algorithms, data structures, dfs and similar, dsu, flows, games, graph matchings, graphs, implementation	2000	x3840
1770C	Koxia and Number Theory brute force, chinese remainder theorem, math, number theory	1700	x8523
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	x382
1769B2	Копирование файлов II *special problem, binary search, brute force, math	1400	x874
1768F	Wonderful Jump dp, greedy	2900	x840
1768E	Partial Sorting combinatorics, math, number theory	2300	x1875
1768D	Lucky Permutation constructive algorithms, dfs and similar, graphs, greedy	1800	x7143
1767F	Two Subtrees data structures, trees	3100	x274
1767E	Algebra Flash bitmasks, brute force, dp, graphs, math, meet-in-the-middle, trees	2500	x927
1767D	Playoff combinatorics, constructive algorithms, dp, greedy, math	1500	x9872
1767C	Count Binary Strings data structures, dp	2100	x2644
1766F	MCF flows	2800	x268
1766E	Decomposition binary search, brute force, data structures, divide and conquer, dp, two pointers	2300	x1191
1766D	Lucky Chains math, number theory	1600	x8878
1765N	Number Reduction greedy	1500	x4753
1765L	Project Manager brute force, data structures, implementation	2400	x583
1765K	Torus Path greedy, math	1500	x5784
1765J	Hero to Zero graph matchings, math	2900	x197
1765I	Infinite Chess implementation, shortest paths	2800	x188
1765H	Hospital Queue binary search, graphs, greedy, implementation	2200	x1256
1765G	Guess the String constructive algorithms, interactive, probabilities	2600	x387
1765F	Chemistry Lab dp, geometry, probabilities	2200	x599
1765D	Watch the Videos binary search, constructive algorithms, two pointers	1700	x4148
1765C	Card Guessing combinatorics, dp, probabilities	2600	x385
1765A	Access Levels bitmasks, dsu, flows, graph matchings	2400	x696
1764H	Doremy's Paint 2 data structures	3400	x191
1764G3	Doremy's Perfect DS Class (Hard Version) binary search, interactive	3300	x457
1764G2	Doremy's Perfect DS Class (Medium Version) binary search, interactive	3000	x527
1764G1	Doremy's Perfect DS Class (Easy Version) binary search, interactive	2900	x584
1764F	Doremy's Experimental Tree brute force, constructive algorithms, dfs and similar, dsu, sortings, trees	2500	x959
1764E	Doremy's Number Line dp, greedy, sortings	2400	x1225
1764D	Doremy's Pegging Game combinatorics, dp, math	2000	x2761
1764C	Doremy's City Construction graphs, greedy	1400	x9392
1763F	Edge Queries data structures, dfs and similar, dp, dsu, graphs, trees	3000	x476
1763E	Node Pairs dp, graphs, math, number theory	2200	x1794
1763D	Valid Bitonic Permutations combinatorics, dp, implementation, math, number theory	2200	x2051
1763C	Another Array Problem brute force, constructive algorithms, greedy	2000	x6547
1762G	Unequal Adjacent Elements constructive algorithms, sortings	3100	x102
1762F	Good Pairs binary search, data structures, dp	2600	x623
1762E	Tree Sum combinatorics, math, trees	2600	x644
1762D	GCD Queries constructive algorithms, interactive, number theory	2100	x3503
1762C	Binary Strings are Fun combinatorics, math	1400	x9156
1761G	Centroid Guess interactive, probabilities, trees	3500	x110
1761F2	Anti-median (Hard Version) combinatorics, dp, math	3500	x81
1761F1	Anti-median (Easy Version) dp, math	3100	x205
1761E	Make It Connected binary search, brute force, constructive algorithms, dsu, graphs, greedy, matrices, trees, two pointers	2400	x1834