Problemset - Codeforces

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Educational Codeforces Round 165 (Rated for Div. 2)
22:06:24
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Problems

#	Name
1966A	Card Exchange greedy		x11492
1965C	Folding Strip greedy		x959
1965B	Missing Subsequence Sum constructive algorithms, greedy, number theory		x3468
1965A	Everything Nim games, greedy, math		x7254
1957B	A BIT of a Construction bitmasks, constructive algorithms, greedy, implementation		x13732
1957A	Stickogon constructive algorithms, greedy		x18305
1956E2	Nene vs. Monsters (Hard Version) brute force, greedy, implementation, math	2700	x596
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x2918
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x9896
1956B	Nene and the Card Game games, greedy	800	x17817
1956A	Nene's Game binary search, brute force, data structures, games, greedy	800	x17945
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x5494
1955E	Long Inversions brute force, greedy, implementation, sortings	1700	x6683
1955C	Inhabitant of the Deep Sea greedy, implementation, math	1300	x16665
1954E	Chain Reaction binary search, data structures, dsu, greedy, implementation, math, number theory	2200	x1596
1954C	Long Multiplication greedy, math, number theory	1200	x14611
1954A	Painting the Ribbon constructive algorithms, greedy, math	900	x19282
1951I	Growing Trees binary search, constructive algorithms, flows, graphs, greedy	3200	x39
1951H	Thanos Snap binary search, dp, games, greedy, trees	3200	x182
1951F	Inversion Composition constructive algorithms, data structures, greedy	2500	x624
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x2885
1951D	Buying Jewels constructive algorithms, greedy, math	2000	x4533
1951C	Ticket Hoarding greedy, math, sortings	1400	x9140
1951B	Battle Cows binary search, data structures, greedy	1200	x11483
1951A	Dual Trigger constructive algorithms, greedy, math	900	x15787
1950F	0, 1, 2, Tree! bitmasks, brute force, greedy, implementation, trees	1700	x7219
1949H	Division Avoidance greedy, math		x68
1949G	Scooter graphs, greedy		x613
1949F	Dating greedy, sortings, trees		x701
1949C	Annual Ants' Gathering dfs and similar, dp, greedy, trees		x1085
1949B	Charming Meals binary search, brute force, greedy, sortings		x1548
1948E	Clique Partition brute force, constructive algorithms, graphs, greedy, implementation	2100	x2544
1948B	Array Fix brute force, dp, greedy, implementation	1100	x20125
1946D	Birthday Gift bitmasks, brute force, constructive algorithms, greedy, implementation	1900	x3906
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x8851
1946B	Maximum Sum dp, greedy, math	1100	x17530
1946A	Median of an Array greedy, implementation, sortings	800	x23135
1945E	Binary Search binary search, constructive algorithms, greedy	1700	x6756
1945D	Seraphim the Owl dp, greedy	1300	x11775
1945A	Setting up Camp greedy, math	800	x24109
1944A	Destroying Bridges graphs, greedy, math	800	x20792
1943E2	MEX Game 2 (Hard Version) binary search, greedy, two pointers	3300	x211
1943E1	MEX Game 2 (Easy Version) binary search, brute force, greedy	2900	x335
1943C	Tree Compass constructive algorithms, dfs and similar, greedy, trees	2300	x1735
1943A	MEX Game 1 games, greedy	1300	x14906
1942D	Learning to Paint binary search, data structures, dfs and similar, dp, greedy, implementation, sortings	2100	x2363
1942C2	Bessie's Birthday Cake (Hard Version) geometry, greedy, math	1700	x5382
1942C1	Bessie's Birthday Cake (Easy Version) geometry, greedy, math	1300	x9306
1941F	Rudolf and Imbalance binary search, greedy, sortings, two pointers	1800	x5092
1941C	Rudolf and the Ugly String dp, greedy, strings	900	x29262
1941B	Rudolf and 121 brute force, dp, greedy, math	1000	x26027
1937B	Binary Path dp, greedy, implementation	1300	x12903
1936D	Bitwise Paradox binary search, bitmasks, data structures, greedy, two pointers	3100	x404
1936C	Pokémon Arena data structures, graphs, greedy, implementation, shortest paths, sortings	2400	x1060
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x6475
1935F	Andrey's Tree binary search, constructive algorithms, data structures, dfs and similar, dsu, greedy, implementation, trees	2800	x384
1935E	Distance Learning Courses in MAC bitmasks, brute force, data structures, greedy, math	2400	x1149
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x7041
1934D2	XOR Break --- Game Version bitmasks, games, greedy, interactive	2400	x1169
1934D1	XOR Break --- Solo Version bitmasks, constructive algorithms, greedy	2100	x3021
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x5964
1934B	Yet Another Coin Problem brute force, dp, greedy, math	1200	x16411
1934A	Too Min Too Max greedy, math	800	x23136
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x17516
1933A	Turtle Puzzle: Rearrange and Negate greedy, math, sortings	800	x35089
1932D	Card Game greedy, implementation	1400	x9750
1932A	Thorns and Coins dp, greedy, implementation	800	x26349
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x13152
1931C	Make Equal Again brute force, greedy, math	1000	x25807
1931B	Make Equal greedy	800	x29782
1930D2	Sum over all Substrings (Hard Version) bitmasks, divide and conquer, dp, dsu, greedy, implementation, strings	2100	x2341
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x3648
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x6333
1930A	Maximise The Score greedy, sortings	800	x16998
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1480
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x13097
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x23635
1929A	Sasha and the Beautiful Array constructive algorithms, greedy, math, sortings	800	x28690
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1511
1928D	Lonely Mountain Dungeons brute force, data structures, greedy, math, ternary search	1900	x3701
1928B	Equalize binary search, greedy, sortings, two pointers	1200	x15097
1927G	Paint Charges data structures, dp, greedy, math	2300	x1478
1927F	Microcycle data structures, dfs and similar, dsu, graphs, greedy, implementation, sortings, trees	1900	x3698
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x18075
1927C	Choose the Different Ones! brute force, greedy, math	1000	x25343
1927B	Following the String constructive algorithms, greedy, strings	900	x30107
1927A	Make it White greedy, strings	800	x39400
1926G	Vlad and Trouble at MIT dfs and similar, dp, flows, graphs, greedy, implementation, trees	1900	x2895
1926D	Vlad and Division bitmasks, greedy	1300	x13335
1925B	A Balanced Problemset? brute force, greedy, math, number theory	1200	x18087
1925A	We Got Everything Covered! constructive algorithms, greedy, strings	800	x27034
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x12212
1923F	Shrink-Reverse binary search, brute force, greedy, hashing, implementation, string suffix structures, strings	2800	x321
1923D	Slimes binary search, constructive algorithms, data structures, greedy, two pointers	1800	x5800
1923C	Find B constructive algorithms, greedy	1400	x12949
1923B	Monsters Attack! dp, greedy, implementation	1100	x16016
1923A	Moving Chips greedy, implementation	800	x23072
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x6977
1922C	Closest Cities greedy, implementation, math	1300	x16736
1921E	Eat the Chip brute force, games, greedy, math	1600	x8837

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