Problemset - Codeforces

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Codeforces Round 945 (Div. 2)
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Problems

#	Name
1972A	Contest Proposal brute force, greedy, two pointers	800	x16658
1971D	Binary Cut greedy, implementation, sortings, strings	1100	x17074
1969F	Card Pairing dp, greedy, hashing, implementation	3000	x107
1969E	Unique Array binary search, data structures, divide and conquer, dp, greedy	2400	x908
1969D	Shop Game data structures, greedy, math, sortings	1900	x3219
1969B	Shifts and Sorting constructive algorithms, greedy	1000	x13936
1968D	Permutation Game brute force, dfs and similar, games, graphs, greedy, math	1300	x11134
1968B	Prefiquence greedy, two pointers	800	x22364
1967A	Permutation Counting binary search, greedy, implementation, math, sortings	1400	x8874
1966A	Card Exchange constructive algorithms, games, greedy	800	x14269
1965C	Folding Strip constructive algorithms, greedy, strings	2300	x1399
1965B	Missing Subsequence Sum bitmasks, constructive algorithms, greedy, number theory	1800	x4948
1965A	Everything Nim games, greedy, math, sortings	1400	x10010
1957B	A BIT of a Construction bitmasks, constructive algorithms, greedy, implementation	1100	x14903
1957A	Stickogon constructive algorithms, greedy	800	x19869
1956E2	Nene vs. Monsters (Hard Version) brute force, greedy, implementation, math	2700	x658
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x3212
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x10674
1956B	Nene and the Card Game games, greedy	800	x18824
1956A	Nene's Game binary search, brute force, data structures, games, greedy	800	x18974
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x5897
1955E	Long Inversions brute force, greedy, implementation, sortings	1700	x7165
1955C	Inhabitant of the Deep Sea greedy, implementation, math	1300	x17839
1954E	Chain Reaction binary search, data structures, dsu, greedy, implementation, math, number theory	2200	x1794
1954C	Long Multiplication greedy, math, number theory	1200	x15753
1954A	Painting the Ribbon constructive algorithms, greedy, math	900	x20479
1951I	Growing Trees binary search, constructive algorithms, flows, graphs, greedy	3200	x45
1951H	Thanos Snap binary search, dp, games, greedy, trees	3200	x199
1951F	Inversion Composition constructive algorithms, data structures, greedy	2500	x649
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x3022
1951D	Buying Jewels constructive algorithms, greedy, math	2000	x4703
1951C	Ticket Hoarding greedy, math, sortings	1400	x9639
1951B	Battle Cows binary search, data structures, greedy	1200	x12085
1951A	Dual Trigger constructive algorithms, greedy, math	900	x16496
1950F	0, 1, 2, Tree! bitmasks, brute force, greedy, implementation, trees	1700	x7628
1949H	Division Avoidance greedy, math	3100	x74
1949G	Scooter graphs, greedy	2300	x642
1949F	Dating greedy, sortings, trees	2200	x761
1949C	Annual Ants' Gathering dfs and similar, dp, greedy, trees	1900	x1208
1949B	Charming Meals binary search, brute force, greedy, sortings	1500	x1861
1948E	Clique Partition brute force, constructive algorithms, graphs, greedy, implementation	2100	x2635
1948B	Array Fix brute force, dp, greedy, implementation	1100	x20509
1946D	Birthday Gift bitmasks, brute force, constructive algorithms, greedy, implementation	1900	x4036
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x9135
1946B	Maximum Sum dp, greedy, math	1100	x17949
1946A	Median of an Array greedy, implementation, sortings	800	x23571
1945E	Binary Search binary search, constructive algorithms, greedy	1700	x6954
1945D	Seraphim the Owl dp, greedy	1300	x12189
1945A	Setting up Camp greedy, math	800	x24733
1944A	Destroying Bridges graphs, greedy, math	800	x21249
1943E2	MEX Game 2 (Hard Version) binary search, greedy, two pointers	3300	x231
1943E1	MEX Game 2 (Easy Version) binary search, brute force, greedy	2900	x362
1943C	Tree Compass constructive algorithms, dfs and similar, greedy, trees	2300	x1801
1943A	MEX Game 1 games, greedy	1300	x15367
1942D	Learning to Paint binary search, data structures, dfs and similar, dp, greedy, implementation, sortings	2100	x2426
1942C2	Bessie's Birthday Cake (Hard Version) geometry, greedy, math	1700	x5484
1942C1	Bessie's Birthday Cake (Easy Version) geometry, greedy, math	1300	x9526
1941F	Rudolf and Imbalance binary search, greedy, sortings, two pointers	1800	x5211
1941C	Rudolf and the Ugly String dp, greedy, strings	900	x29761
1941B	Rudolf and 121 brute force, dp, greedy, math	1000	x26486
1937B	Binary Path dp, greedy, implementation	1300	x13122
1936D	Bitwise Paradox binary search, bitmasks, data structures, greedy, two pointers	3100	x416
1936C	Pokémon Arena data structures, graphs, greedy, implementation, shortest paths, sortings	2400	x1098
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x6578
1935F	Andrey's Tree binary search, constructive algorithms, data structures, dfs and similar, dsu, greedy, implementation, trees	2800	x393
1935E	Distance Learning Courses in MAC bitmasks, brute force, data structures, greedy, math	2400	x1172
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x7149
1934D2	XOR Break --- Game Version bitmasks, games, greedy, interactive	2400	x1193
1934D1	XOR Break --- Solo Version bitmasks, constructive algorithms, greedy	2100	x3082
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x6051
1934B	Yet Another Coin Problem brute force, dp, greedy, math	1200	x16694
1934A	Too Min Too Max greedy, math	800	x23426
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x17835
1933A	Turtle Puzzle: Rearrange and Negate greedy, math, sortings	800	x35505
1932D	Card Game greedy, implementation	1400	x9925
1932A	Thorns and Coins dp, greedy, implementation	800	x26778
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x13386
1931C	Make Equal Again brute force, greedy, math	1000	x26119
1931B	Make Equal greedy	800	x30049
1930D2	Sum over all Substrings (Hard Version) bitmasks, divide and conquer, dp, dsu, greedy, implementation, strings	2100	x2368
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x3698
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x6418
1930A	Maximise The Score greedy, sortings	800	x17180
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1516
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x13275
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x23805
1929A	Sasha and the Beautiful Array constructive algorithms, greedy, math, sortings	800	x28927
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1552
1928D	Lonely Mountain Dungeons brute force, data structures, greedy, math, ternary search	1900	x3757
1928B	Equalize binary search, greedy, sortings, two pointers	1200	x15314
1927G	Paint Charges data structures, dp, greedy, math	2300	x1493
1927F	Microcycle data structures, dfs and similar, dsu, graphs, greedy, implementation, sortings, trees	1900	x3811
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x18326
1927C	Choose the Different Ones! brute force, greedy, math	1000	x25618
1927B	Following the String constructive algorithms, greedy, strings	900	x30446
1927A	Make it White greedy, strings	800	x39779
1926G	Vlad and Trouble at MIT dfs and similar, dp, flows, graphs, greedy, implementation, trees	1900	x2967
1926D	Vlad and Division bitmasks, greedy	1300	x13640
1925B	A Balanced Problemset? brute force, greedy, math, number theory	1200	x18256
1925A	We Got Everything Covered! constructive algorithms, greedy, strings	800	x27172

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