Problemset - Codeforces

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Codeforces Round 957 (Div. 3)
36:56:47
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Problems

#	Name
1989E	Distance to Different combinatorics, dp, math	2300	x1288
1989D	Smithing Skill brute force, data structures, dp, greedy, math, sortings, two pointers	1900	x4322
1987G2	Spinning Round (Hard Version) divide and conquer, dp, trees	3500	x65
1987G1	Spinning Round (Easy Version) divide and conquer, dp, trees	2900	x165
1987F2	Interesting Problem (Hard Version) dp	2600	x701
1987F1	Interesting Problem (Easy Version) dp	2500	x801
1987D	World is Mine dp, games	1800	x5298
1987C	Basil's Garden dp, greedy	1200	x13478
1986D	Mathematical Problem brute force, dp, greedy, implementation, math, two pointers	1400	x12296
1985H2	Maximize the Largest Component (Hard Version) data structures, dfs and similar, dp, dsu, implementation	2200	x1172
1984H	Tower Capturing combinatorics, dp, geometry	3300	x135
1984F	Reconstruction brute force, dp, math	2500	x759
1984E	Shuffle dp, greedy, trees	2400	x1154
1984C2	Magnitude (Hard Version) combinatorics, dp, greedy, math	1700	x6239
1984C1	Magnitude (Easy Version) dp, greedy, math	1300	x13910
1983G	Your Loss bitmasks, brute force, dp, trees		x101
1983C	Have Your Cake and Eat It Too binary search, bitmasks, brute force, constructive algorithms, dp, greedy, implementation		x9073
1982E	Number of k-good subarrays bitmasks, brute force, combinatorics, divide and conquer, dp, math, meet-in-the-middle	2300	x1210
1982C	Boring Day binary search, data structures, dp, greedy, two pointers	1200	x14185
1981F	Turtle and Paths on a Tree data structures, dp, trees	3000	x195
1979D	Fixing a Binary String bitmasks, brute force, constructive algorithms, dp, greedy, hashing, strings	1800	x5623
1978E	Computing Machine brute force, data structures, dp, greedy, implementation	2000	x3007
1977C	Nikita and LCM brute force, data structures, dp, greedy, math, number theory, sortings	1900	x5837
1976F	Remove Bridges data structures, dfs and similar, dp, greedy, sortings, trees	2800	x433
1976C	Job Interview binary search, dp, greedy, implementation, two pointers	1600	x8874
1975I	Mind Bloom dp	3500	x59
1975F	Set bitmasks, brute force, combinatorics, dfs and similar, divide and conquer, dp, math	2600	x689
1975D	Paint the Tree brute force, dfs and similar, dp, greedy, shortest paths, trees	1700	x5108
1974E	Money Buys Happiness dp	1800	x6807
1973F	Maximum GCD Sum Queries bitmasks, brute force, dp, implementation, number theory	3100	x176
1973A	Chess For Three brute force, dp, implementation, math	900	x22121
1971D	Binary Cut dp, greedy, implementation, sortings, strings	1100	x23269
1970G3	Min-Fund Prison (Hard) bitmasks, dfs and similar, dp, graphs, trees	2400	x259
1970G2	Min-Fund Prison (Medium) brute force, dfs and similar, dp, graphs, trees	2200	x457
1970E3	Trails (Hard) dp, matrices	2200	x544
1970E2	Trails (Medium) dp, matrices	2000	x945
1970E1	Trails (Easy) dp	1800	x1571
1970C3	Game on Tree (Hard) dfs and similar, dp, games, trees	1900	x1157
1970C2	Game on Tree (Medium) dfs and similar, dp, games, trees	1700	x1981
1969F	Card Pairing dp, greedy, hashing, implementation	3000	x203
1969E	Unique Array binary search, data structures, divide and conquer, dp, greedy	2400	x1169
1969C	Minimizing the Sum dp, implementation	1700	x7520
1968G2	Division + LCP (hard version) binary search, brute force, data structures, dp, hashing, math, string suffix structures, strings	2200	x1690
1968G1	Division + LCP (easy version) binary search, data structures, dp, hashing, string suffix structures, strings	1900	x3739
1967E2	Again Counting Arrays (Hard Version) combinatorics, dp, math	3500	x83
1967E1	Again Counting Arrays (Easy Version) combinatorics, dp, fft, math	3100	x167
1967C	Fenwick Tree bitmasks, brute force, combinatorics, data structures, dp, math, trees	2300	x1484
1958H	Composite Spells *special problem, dp	2600	x68
1958A	1-3-5 *special problem, dp	1100	x1381
1957E	Carousel of Combinations brute force, combinatorics, dp, math, number theory	2400	x1118
1957D	A BIT of an Inequality bitmasks, brute force, dp, math	1900	x4074
1957C	How Does the Rook Move? combinatorics, dp, math	1600	x8666
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x3550
1955H	The Most Reckless Defense bitmasks, brute force, constructive algorithms, dp, flows, graph matchings, shortest paths	2300	x1140
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x3992
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x6467
1954F	Unique Strings combinatorics, dp, math	3100	x234
1954D	Colored Balls combinatorics, dp, math, sortings	1800	x5491
1951H	Thanos Snap binary search, dp, games, greedy, trees	3200	x233
1950G	Shuffling Songs bitmasks, dfs and similar, dp, graphs, hashing, implementation, strings	1900	x3907
1950D	Product of Binary Decimals brute force, dp, implementation, number theory	1100	x21720
1949C	Annual Ants' Gathering dfs and similar, dp, greedy, trees	1900	x1432
1949A	Grove brute force, dfs and similar, dp, geometry, probabilities	3300	x96
1948C	Arrow Path brute force, constructive algorithms, dfs and similar, dp, graphs, shortest paths	1300	x15515
1948B	Array Fix brute force, dp, greedy, implementation	1100	x21635
1946F	Nobody is needed 2-sat, data structures, dfs and similar, dp	2500	x834
1946E	Girl Permutation combinatorics, dp, math, number theory	2200	x2249
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x9849
1946B	Maximum Sum dp, greedy, math	1100	x19158
1945D	Seraphim the Owl dp, greedy	1300	x13261
1943F	Minimum Hamming Distance dp	3500	x92
1943D2	Counting Is Fun (Hard Version) combinatorics, dp	2800	x653
1943D1	Counting Is Fun (Easy Version) brute force, combinatorics, dp, math	2400	x1340
1942H	Farmer John's Favorite Intern data structures, dp, flows, trees	3500	x77
1942G	Bessie and Cards combinatorics, dp, math	2800	x411
1942D	Learning to Paint binary search, data structures, dfs and similar, dp, greedy, implementation, sortings	2100	x2605
1941E	Rudolf and k Bridges binary search, data structures, dp, two pointers	1600	x8785
1941D	Rudolf and the Ball Game dfs and similar, dp, implementation	1200	x17453
1941C	Rudolf and the Ugly String dp, greedy, strings	900	x31433
1941B	Rudolf and 121 brute force, dp, greedy, math	1000	x27951
1939D	Big Persimmon *special problem, dp, games		x84
1939A	Draw Polygon Lines *special problem, constructive algorithms, dp, geometry, interactive		x20
1937B	Binary Path dp, greedy, implementation	1300	x13962
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x7562
1934B	Yet Another Coin Problem brute force, dp, greedy, math	1200	x17668
1933F	Turtle Mission: Robot and the Earthquake dfs and similar, dp, graphs, shortest paths	2100	x2321
1932F	Feed Cats data structures, dp, sortings	1900	x3698
1932A	Thorns and Coins dp, greedy, implementation	800	x28038
1930G	Prefix Max Set Counting data structures, dp, trees	3100	x318
1930E	2..3...4.... Wonderful! Wonderful! combinatorics, dp, math	2400	x1047
1930D2	Sum over all Substrings (Hard Version) bitmasks, divide and conquer, dp, dsu, greedy, implementation, strings	2100	x2475
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x3866
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1578
1929D	Sasha and a Walk in the City combinatorics, dp, math, trees	1900	x4391
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1608
1927G	Paint Charges data structures, dp, greedy, math	2300	x1558
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x19560
1926G	Vlad and Trouble at MIT dfs and similar, dp, flows, graphs, greedy, implementation, trees	1900	x3254
1926F	Vlad and Avoiding X bitmasks, brute force, dfs and similar, dp, implementation	2200	x1584
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x10957

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