Problemset - Codeforces

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brute force

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Problems

#	Name
1994G	Minecraft bitmasks, brute force, dp, math		x514
1992F	Valuable Cards brute force, dp, greedy, number theory, two pointers	1900	x4318
1992E	Novice's Mistake brute force, constructive algorithms, implementation, math, strings	1700	x7249
1992A	Only Pluses brute force, constructive algorithms, greedy, math, sortings	800	x33263
1990C	Mad MAD Sum brute force, greedy, math		x6012
1990A	Submission Bait brute force, games, greedy, sortings		x14507
1989D	Smithing Skill brute force, data structures, dp, greedy, math, sortings, two pointers	1900	x4830
1989B	Substring and Subsequence brute force, greedy, strings	1200	x17118
1988E	Range Minimum Sum binary search, brute force, data structures, divide and conquer, implementation	2300	x938
1988D	The Omnipotent Monster Killer brute force, dfs and similar, dp, trees	2000	x3600
1988A	Split the Multiset brute force, greedy, implementation, math	900	x18754
1987E	Wonderful Tree! brute force, data structures, dfs and similar, dsu, greedy, trees	2000	x2698
1986G2	Permutation Problem (Hard Version) brute force, data structures, hashing, math, number theory	2500	x839
1986G1	Permutation Problem (Simple Version) binary search, brute force, combinatorics, data structures, math, number theory	2200	x1192
1986D	Mathematical Problem brute force, dp, greedy, implementation, math, two pointers	1400	x13191
1986B	Matrix Stabilization brute force, data structures, greedy, sortings	1000	x23901
1986A	X Axis brute force, geometry, math, sortings	800	x35752
1985H1	Maximize the Largest Component (Easy Version) brute force, data structures, dfs and similar, dsu, graphs, implementation	1700	x4621
1985E	Secret Box brute force, combinatorics, math	1200	x17518
1985B	Maximum Multiple Sum brute force, math, number theory	800	x40023
1984F	Reconstruction brute force, dp, math	2500	x798
1984D	''a'' String Problem brute force, hashing, implementation, math, string suffix structures, strings	2000	x2828
1983G	Your Loss bitmasks, brute force, dp, trees	3000	x161
1983C	Have Your Cake and Eat It Too binary search, brute force, greedy, implementation	1400	x10638
1982E	Number of k-good subarrays bitmasks, brute force, combinatorics, divide and conquer, dp, math, meet-in-the-middle	2300	x1331
1982D	Beauty of the mountains brute force, data structures, implementation, math, number theory	1700	x6085
1982B	Collatz Conjecture brute force, implementation, math, number theory	1200	x14977
1981C	Turtle and an Incomplete Sequence bitmasks, brute force, constructive algorithms, greedy, implementation, math	1800	x4546
1981A	Turtle and Piggy Are Playing a Game brute force, greedy, math	800	x20564
1979F	Kostyanych's Theorem brute force, constructive algorithms, graphs, interactive	2900	x248
1979D	Fixing a Binary String bitmasks, brute force, constructive algorithms, dp, greedy, hashing, strings	1800	x5819
1979A	Guess the Maximum brute force, greedy, implementation	800	x27114
1978E	Computing Machine brute force, data structures, dp, greedy, implementation	2000	x3200
1977D	XORificator bitmasks, brute force, greedy, hashing	2300	x1603
1977C	Nikita and LCM brute force, data structures, dp, greedy, math, number theory, sortings	1900	x5972
1975F	Set bitmasks, brute force, combinatorics, dfs and similar, divide and conquer, dp, math	2600	x717
1975D	Paint the Tree brute force, dfs and similar, dp, greedy, shortest paths, trees	1700	x5279
1975C	Chamo and Mocha's Array binary search, brute force, greedy	1200	x13131
1975B	378QAQ and Mocha's Array brute force, greedy, math, sortings	1000	x16203
1975A	Bazoka and Mocha's Array brute force, greedy, implementation, sortings	800	x17558
1974F	Cutting Game binary search, brute force, data structures, implementation, sortings, two pointers	1900	x3192
1973F	Maximum GCD Sum Queries bitmasks, brute force, dp, implementation, number theory	3100	x181
1973D	Cat, Fox and Maximum Array Split brute force, interactive, math	2400	x1727
1973A	Chess For Three brute force, dp, implementation, math	900	x22508
1972A	Contest Proposal brute force, greedy, two pointers	800	x21531
1971F	Circle Perimeter binary search, brute force, dfs and similar, geometry, implementation, math	1600	x8849
1970G2	Min-Fund Prison (Medium) brute force, dfs and similar, dp, graphs, trees	2200	x471
1970D1	Arithmancy (Easy) brute force, constructive algorithms, interactive, strings	2100	x510
1970A2	Balanced Unshuffle (Medium) brute force, constructive algorithms, trees	2400	x388
1968G2	Division + LCP (hard version) binary search, brute force, data structures, dp, hashing, math, string suffix structures, strings	2200	x1724
1968D	Permutation Game brute force, dfs and similar, games, graphs, greedy, math	1300	x13721
1968A	Maximize? brute force, math, number theory	800	x31366
1967F	Next and Prev brute force, data structures, implementation	3200	x52
1967C	Fenwick Tree bitmasks, brute force, combinatorics, data structures, dp, math, trees	2300	x1514
1967B2	Reverse Card (Hard Version) brute force, math, number theory	2200	x3582
1967B1	Reverse Card (Easy Version) brute force, math, number theory	1400	x12051
1957E	Carousel of Combinations brute force, combinatorics, dp, math, number theory	2400	x1137
1957D	A BIT of an Inequality bitmasks, brute force, dp, math	1900	x4131
1956E2	Nene vs. Monsters (Hard Version) brute force, greedy, implementation, math	2700	x770
1956E1	Nene vs. Monsters (Easy Version) brute force, implementation, math	2500	x1358
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x3592
1956A	Nene's Game binary search, brute force, data structures, games, greedy	800	x20628
1955H	The Most Reckless Defense bitmasks, brute force, constructive algorithms, dp, flows, graph matchings, shortest paths	2300	x1159
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x4077
1955E	Long Inversions brute force, greedy, implementation, sortings	1700	x7969
1952J	Help, what does it mean to be "Based" brute force, constructive algorithms, expression parsing, implementation, sortings		x734
1952F	Grid brute force		x1698
1952C	They Have Fooled brute force, schedules		x2817
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x3346
1950F	0, 1, 2, Tree! bitmasks, brute force, greedy, implementation, trees	1700	x8439
1950E	Nearly Shortest Repeating Substring brute force, implementation, number theory, strings	1500	x13332
1950D	Product of Binary Decimals brute force, dp, implementation, number theory	1100	x21927
1949E	Damage per Second brute force, math	2900	x92
1949B	Charming Meals binary search, brute force, greedy, sortings	1500	x2605
1949A	Grove brute force, dfs and similar, dp, geometry, probabilities	3300	x98
1948G	MST with Matching bitmasks, brute force, dsu, graph matchings, trees	3100	x661
1948E	Clique Partition brute force, constructive algorithms, graphs, greedy, implementation	2100	x2817
1948D	Tandem Repeats? brute force, strings, two pointers	1700	x8777
1948C	Arrow Path brute force, constructive algorithms, dfs and similar, dp, graphs, shortest paths	1300	x15682
1948B	Array Fix brute force, dp, greedy, implementation	1100	x21798
1948A	Special Characters brute force, constructive algorithms	800	x27542
1946D	Birthday Gift bitmasks, brute force, constructive algorithms, greedy, implementation	1900	x4380
1945H	GCD is Greater brute force, data structures, math, number theory	2600	x572
1945C	Left and Right Houses brute force	1200	x14023
1943E1	MEX Game 2 (Easy Version) binary search, brute force, greedy	2900	x406
1943D1	Counting Is Fun (Easy Version) brute force, combinatorics, dp, math	2400	x1352
1942F	Farmer John's Favorite Function brute force, data structures, implementation, math	2700	x651
1941B	Rudolf and 121 brute force, dp, greedy, math	1000	x28193
1941A	Rudolf and the Ticket brute force, math	800	x40785
1935E	Distance Learning Courses in MAC bitmasks, brute force, data structures, greedy, math	2400	x1268
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x7637
1934E	Weird LCM Operations brute force, constructive algorithms, number theory	3000	x205
1934B	Yet Another Coin Problem brute force, dp, greedy, math	1200	x17834
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks, brute force, combinatorics, constructive algorithms, dfs and similar, math	2300	x919
1933C	Turtle Fingers: Count the Values of k brute force, implementation, math, number theory	1100	x21694
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x14814
1931C	Make Equal Again brute force, greedy, math	1000	x27674
1931A	Recovering a Small String brute force, strings	800	x34868
1930F	Maximize the Difference bitmasks, brute force, dfs and similar	2700	x666
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x3897

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