Problemset - Codeforces

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brute force

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Problems

#	Name
1986G1	Permutation Problem (Simple Version) binary search, brute force, combinatorics, data structures, math, number theory	2200	x1502
1986D	Mathematical Problem brute force, dp, greedy, implementation, math, two pointers	1400	x15251
1986B	Matrix Stabilization brute force, data structures, greedy, sortings	1000	x26676
1986A	X Axis brute force, geometry, math, sortings	800	x40654
1985H1	Maximize the Largest Component (Easy Version) brute force, data structures, dfs and similar, dsu, graphs, implementation	1700	x5628
1985E	Secret Box brute force, combinatorics, math	1200	x19980
1985B	Maximum Multiple Sum brute force, math, number theory	800	x46539
1984F	Reconstruction brute force, dp, math	2500	x943
1984D	''a'' String Problem brute force, hashing, implementation, math, string suffix structures, strings	2000	x3300
1983G	Your Loss bitmasks, brute force, dp, trees	3000	x212
1983C	Have Your Cake and Eat It Too binary search, brute force, greedy, implementation	1400	x12608
1982E	Number of k-good subarrays bitmasks, brute force, combinatorics, divide and conquer, dp, math, meet-in-the-middle	2300	x1602
1982D	Beauty of the mountains brute force, data structures, implementation, math, number theory	1700	x7186
1982B	Collatz Conjecture brute force, implementation, math, number theory	1200	x17004
1981C	Turtle and an Incomplete Sequence bitmasks, brute force, constructive algorithms, greedy, implementation, math	1800	x5371
1981A	Turtle and Piggy Are Playing a Game brute force, greedy, math	800	x22334
1979F	Kostyanych's Theorem brute force, constructive algorithms, graphs, interactive	2900	x316
1979D	Fixing a Binary String bitmasks, brute force, constructive algorithms, dp, greedy, hashing, strings	1800	x6666
1979A	Guess the Maximum brute force, greedy, implementation	800	x29094
1978E	Computing Machine brute force, data structures, dp, greedy, implementation	2000	x3842
1977D	XORificator bitmasks, brute force, greedy, hashing	2300	x1873
1977C	Nikita and LCM brute force, data structures, dp, greedy, math, number theory, sortings	1900	x6790
1975F	Set bitmasks, brute force, combinatorics, dfs and similar, divide and conquer, dp, math	2600	x836
1975D	Paint the Tree brute force, dfs and similar, dp, greedy, shortest paths, trees	1700	x6074
1975C	Chamo and Mocha's Array binary search, brute force, greedy	1200	x14637
1975B	378QAQ and Mocha's Array brute force, greedy, math, sortings	1000	x17921
1975A	Bazoka and Mocha's Array brute force, greedy, implementation, sortings	800	x18558
1974F	Cutting Game binary search, brute force, data structures, implementation, sortings, two pointers	1900	x3591
1973F	Maximum GCD Sum Queries bitmasks, brute force, dp, implementation, number theory	3100	x232
1973D	Cat, Fox and Maximum Array Split brute force, interactive, math	2400	x1925
1973A	Chess For Three brute force, dp, implementation, math	900	x24642
1972A	Contest Proposal brute force, greedy, two pointers	800	x23014
1971F	Circle Perimeter binary search, brute force, dfs and similar, geometry, implementation, math	1600	x10068
1970G2	Min-Fund Prison (Medium) brute force, dfs and similar, dp, graphs, trees	2200	x593
1970D1	Arithmancy (Easy) brute force, constructive algorithms, interactive, strings	2100	x650
1970A2	Balanced Unshuffle (Medium) brute force, constructive algorithms, trees	2400	x451
1968G2	Division + LCP (hard version) binary search, brute force, data structures, dp, hashing, math, string suffix structures, strings	2200	x1979
1968D	Permutation Game brute force, dfs and similar, games, graphs, greedy, math	1300	x15009
1968A	Maximize? brute force, math, number theory	800	x34748
1967F	Next and Prev brute force, data structures, implementation	3200	x70
1967C	Fenwick Tree bitmasks, brute force, combinatorics, data structures, dp, math, trees	2300	x1784
1967B2	Reverse Card (Hard Version) brute force, math, number theory	2200	x3958
1967B1	Reverse Card (Easy Version) brute force, math, number theory	1400	x13364
1957E	Carousel of Combinations brute force, combinatorics, dp, math, number theory	2400	x1282
1957D	A BIT of an Inequality bitmasks, brute force, dp, math	1900	x4550
1956E2	Nene vs. Monsters (Hard Version) brute force, greedy, implementation, math	2700	x889
1956E1	Nene vs. Monsters (Easy Version) brute force, implementation, math	2500	x1470
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x3954
1956A	Nene's Game binary search, brute force, data structures, games, greedy	800	x21781
1955H	The Most Reckless Defense bitmasks, brute force, constructive algorithms, dp, flows, graph matchings, shortest paths	2300	x1267
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x4583
1955E	Long Inversions brute force, greedy, implementation, sortings	1700	x8700
1952J	Help, what does it mean to be "Based" brute force, constructive algorithms, expression parsing, implementation, sortings		x775
1952F	Grid brute force		x1752
1952C	They Have Fooled brute force, schedules		x2912
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x3668
1950F	0, 1, 2, Tree! bitmasks, brute force, greedy, implementation, trees	1700	x9242
1950E	Nearly Shortest Repeating Substring brute force, implementation, number theory, strings	1500	x14563
1950D	Product of Binary Decimals brute force, dp, implementation, number theory	1100	x23337
1949E	Damage per Second brute force, math	2900	x105
1949B	Charming Meals binary search, brute force, greedy, sortings	1500	x3361
1949A	Grove brute force, dfs and similar, dp, geometry, probabilities	3300	x115
1948G	MST with Matching bitmasks, brute force, dsu, graph matchings, trees	3100	x701
1948E	Clique Partition brute force, constructive algorithms, graphs, greedy, implementation	2100	x3020
1948D	Tandem Repeats? brute force, strings, two pointers	1700	x9529
1948C	Arrow Path brute force, constructive algorithms, dfs and similar, dp, graphs, shortest paths	1300	x17040
1948B	Array Fix brute force, dp, greedy, implementation	1100	x23091
1948A	Special Characters brute force, constructive algorithms	800	x28684
1946D	Birthday Gift bitmasks, brute force, constructive algorithms, greedy, implementation	1900	x4773
1945H	GCD is Greater brute force, data structures, math, number theory	2600	x679
1945C	Left and Right Houses brute force	1200	x15047
1943E1	MEX Game 2 (Easy Version) binary search, brute force, greedy	2900	x443
1943D1	Counting Is Fun (Easy Version) brute force, combinatorics, dp, math	2400	x1516
1942F	Farmer John's Favorite Function brute force, data structures, implementation, math	2700	x702
1941B	Rudolf and 121 brute force, dp, greedy, math	1000	x30076
1941A	Rudolf and the Ticket brute force, math	800	x42726
1935E	Distance Learning Courses in MAC bitmasks, brute force, data structures, greedy, math	2400	x1383
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x8270
1934E	Weird LCM Operations brute force, constructive algorithms, number theory	3000	x241
1934B	Yet Another Coin Problem brute force, dp, greedy, math	1200	x19121
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks, brute force, combinatorics, constructive algorithms, dfs and similar, math	2300	x987
1933C	Turtle Fingers: Count the Values of k brute force, implementation, math, number theory	1100	x22780
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x15938
1931C	Make Equal Again brute force, greedy, math	1000	x29422
1931A	Recovering a Small String brute force, strings	800	x36473
1930F	Maximize the Difference bitmasks, brute force, dfs and similar	2700	x726
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x4167
1930B	Permutation Printing brute force, constructive algorithms, math	1000	x15457
1929F	Sasha and the Wedding Binary Search Tree brute force, combinatorics, data structures, dfs and similar, math, trees	2300	x1821
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1722
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x15103
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1744
1928D	Lonely Mountain Dungeons brute force, data structures, greedy, math, ternary search	1900	x4333
1928C	Physical Education Lesson brute force, math, number theory	1600	x8689
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x21895
1927C	Choose the Different Ones! brute force, greedy, math	1000	x28228
1926F	Vlad and Avoiding X bitmasks, brute force, dfs and similar, dp, implementation	2200	x1732
1925B	A Balanced Problemset? brute force, greedy, math, number theory	1200	x20284
1923F	Shrink-Reverse binary search, brute force, greedy, hashing, implementation, string suffix structures, strings	2800	x378
1922D	Berserk Monsters brute force, data structures, dsu, implementation, math	1900	x5763