Problemset - Codeforces

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Codeforces Round 940 (Div. 2) and CodeCraft-23
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Problems

#	Name
1956F	Nene and the Passing Game constructive algorithms, data structures, dsu, graphs, sortings	3000	x167
1956E2	Nene vs. Monsters (Hard Version) brute force, greedy, implementation, math	2700	x477
1956E1	Nene vs. Monsters (Easy Version) brute force, implementation, math	2500	x944
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x2407
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x8668
1956B	Nene and the Card Game games, greedy	800	x15976
1956A	Nene's Game binary search, brute force, data structures, games, greedy	800	x16154
1955H	The Most Reckless Defense bitmasks, brute force, constructive algorithms, dp, flows, graph matchings, shortest paths	2300	x834
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x2789
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x5052
1955E	Long Inversions brute force, greedy, implementation, sortings	1700	x6140
1955D	Inaccurate Subsequence Search data structures, two pointers	1400	x11221
1955C	Inhabitant of the Deep Sea greedy, implementation, math	1300	x15496
1955B	Progressive Square constructive algorithms, data structures, implementation, sortings	1000	x21064
1955A	Yogurt Sale math	800	x31984
1954F	Unique Strings combinatorics, dp, math	3100	x149
1954E	Chain Reaction binary search, data structures, dsu, greedy, implementation, math, number theory	2200	x1369
1954D	Colored Balls combinatorics, dp, math, sortings	1800	x4099
1954C	Long Multiplication greedy, math, number theory	1200	x13328
1954B	Make It Ugly implementation, math	1200	x13418
1954A	Painting the Ribbon constructive algorithms, greedy, math	900	x17923
1952J	Help, what does it mean to be "Based" brute force, constructive algorithms, expression parsing, implementation, sortings		x658
1952I	Dark Matter bitmasks, geometry		x300
1952H	Palindrome implementation, strings		x313
1952G	Mathematician Takeover binary search, dfs and similar, math		x873
1952F	Grid brute force		x1588
1952E	Sweep Line combinatorics, games, math		x193
1952D	Are You a Procrastinator? implementation		x3976
1952C	They Have Fooled brute force, schedules		x2632
1952B	Is it stated? strings		x10026
1952A	Are You a Robot, Again? strings		x11074
1951I	Growing Trees binary search, constructive algorithms, flows, graphs, greedy	3200	x30
1951H	Thanos Snap binary search, dp, games, greedy, trees	3200	x161
1951G	Clacking Balls combinatorics, math, probabilities	3100	x190
1951F	Inversion Composition constructive algorithms, data structures, greedy	2500	x589
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x2739
1951D	Buying Jewels constructive algorithms, greedy, math	2000	x4337
1951C	Ticket Hoarding greedy, math, sortings	1400	x8642
1951B	Battle Cows binary search, data structures, greedy	1200	x10957
1951A	Dual Trigger constructive algorithms, greedy, math	900	x15132
1950G	Shuffling Songs bitmasks, dfs and similar, dp, graphs, hashing, implementation, strings	1900	x3106
1950F	0, 1, 2, Tree! bitmasks, brute force, greedy, implementation, trees	1700	x6913
1950E	Nearly Shortest Repeating Substring brute force, implementation, number theory, strings	1500	x10949
1950D	Product of Binary Decimals brute force, dp, implementation, number theory	1100	x18980
1950C	Clock Conversion implementation, math	800	x32955
1950B	Upscaling implementation	800	x31309
1950A	Stair, Peak, or Neither? implementation	800	x40625
1949K	Make Triangle constructive algorithms, math		x215
1949J	Amanda the Amoeba graphs, implementation, trees, two pointers		x294
1949I	Disks dfs and similar, geometry, graph matchings, graphs		x1034
1949H	Division Avoidance greedy, math		x63
1949G	Scooter graphs, greedy		x592
1949F	Dating greedy, sortings, trees		x675
1949E	Damage per Second brute force, math		x73
1949D	Funny or Scary? constructive algorithms		x292
1949C	Annual Ants' Gathering dfs and similar, dp, greedy, trees		x1051
1949B	Charming Meals binary search, brute force, greedy, sortings		x1499
1949A	Grove brute force, dfs and similar, dp, geometry, probabilities		x75
1948G	MST with Matching bitmasks, brute force, dsu, graph matchings, trees	3100	x558
1948F	Rare Coins combinatorics, math, probabilities	2500	x1042
1948E	Clique Partition brute force, constructive algorithms, graphs, greedy, implementation	2100	x2466
1948D	Tandem Repeats? brute force, strings, two pointers	1700	x7854
1948C	Arrow Path brute force, constructive algorithms, dfs and similar, dp, graphs, shortest paths	1300	x13793
1948B	Array Fix brute force, dp, greedy, implementation	1100	x19818
1948A	Special Characters brute force, constructive algorithms	800	x25528
1946F	Nobody is needed 2-sat, data structures, dfs and similar, dp	2500	x713
1946E	Girl Permutation combinatorics, dp, math, number theory	2200	x1959
1946D	Birthday Gift bitmasks, brute force, constructive algorithms, greedy, implementation	1900	x3791
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x8605
1946B	Maximum Sum dp, greedy, math	1100	x17164
1946A	Median of an Array greedy, implementation, sortings	800	x22698
1945H	GCD is Greater brute force, data structures, math, number theory	2600	x449
1945G	Cook and Porridge binary search, constructive algorithms, data structures, implementation	2500	x586
1945F	Kirill and Mushrooms data structures, sortings	1900	x3401
1945E	Binary Search binary search, constructive algorithms, greedy	1700	x6602
1945D	Seraphim the Owl dp, greedy	1300	x11504
1945C	Left and Right Houses brute force	1200	x12186
1945B	Fireworks math, number theory	900	x18767
1945A	Setting up Camp greedy, math	800	x23602
1944B	Equal XOR bitmasks, constructive algorithms	1100	x13728
1944A	Destroying Bridges graphs, greedy, math	800	x20437
1943F	Minimum Hamming Distance dp	3500	x64
1943E2	MEX Game 2 (Hard Version) binary search, greedy, two pointers	3300	x187
1943E1	MEX Game 2 (Easy Version) binary search, brute force, greedy	2900	x315
1943D2	Counting Is Fun (Hard Version) combinatorics, dp	2800	x538
1943D1	Counting Is Fun (Easy Version) brute force, combinatorics, dp, math	2400	x1155
1943C	Tree Compass constructive algorithms, dfs and similar, greedy, trees	2300	x1687
1943B	Non-Palindromic Substring hashing, implementation, math, strings	2000	x3087
1943A	MEX Game 1 games, greedy	1300	x14620
1942H	Farmer John's Favorite Intern data structures, dp, flows, trees	3500	x52
1942G	Bessie and Cards combinatorics, dp, math	2800	x336
1942F	Farmer John's Favorite Function brute force, data structures, implementation, math	2700	x505
1942E	Farm Game combinatorics, games	2300	x1361
1942D	Learning to Paint binary search, data structures, dfs and similar, dp, greedy, implementation, sortings	2100	x2290
1942C2	Bessie's Birthday Cake (Hard Version) geometry, greedy, math	1700	x5229
1942C1	Bessie's Birthday Cake (Easy Version) geometry, greedy, math	1300	x9033
1942B	Bessie and MEX constructive algorithms, math	1100	x11763
1942A	Farmer John's Challenge constructive algorithms, math	800	x15013
1941G	Rudolf and Subway constructive algorithms, dfs and similar, graphs, shortest paths	2000	x2811
1941F	Rudolf and Imbalance binary search, greedy, sortings, two pointers	1800	x5008

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