Problemset - Codeforces

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Codeforces Round 964 (Div. 4)
09:33:30
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brute force

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Problems

#	Name
1997F	Chips on a Line brute force, combinatorics, dp, greedy, math		x615
1997E	Level Up binary search, brute force, data structures, divide and conquer, implementation		x2112
1997A	Strong Password brute force, implementation, strings		x24535
1996G	Penacony brute force, data structures, graphs, greedy, hashing		x1118
1996D	Fun binary search, brute force, combinatorics, math, number theory		x12964
1995D	Cases bitmasks, brute force, dp, strings	2300	x1811
1995C	Squaring brute force, constructive algorithms, greedy, implementation, math, number theory	1800	x6683
1995B1	Bouquet (Easy Version) binary search, brute force, greedy, sortings, two pointers	1100	x15075
1995A	Diagonals brute force, greedy, implementation, math	800	x21186
1994G	Minecraft bitmasks, brute force, dp, graphs, math	2600	x984
1993F1	Dyn-scripted Robot (Easy Version) brute force, chinese remainder theorem, constructive algorithms, math, number theory		x564
1992F	Valuable Cards brute force, dp, greedy, number theory, two pointers	1900	x4860
1992E	Novice's Mistake brute force, constructive algorithms, implementation, math, strings	1700	x8016
1992A	Only Pluses brute force, constructive algorithms, greedy, math, sortings	800	x36755
1991F	Triangle Formation brute force, greedy, implementation, math, sortings		x1824
1990F	Polygonal Segments brute force, data structures, divide and conquer, dp, greedy, two pointers	2800	x190
1990D	Grid Puzzle bitmasks, brute force, dp, greedy, implementation	1800	x5090
1990C	Mad MAD Sum brute force, greedy, math	1500	x9449
1990A	Submission Bait brute force, games, greedy, sortings	900	x18985
1989D	Smithing Skill brute force, data structures, dp, greedy, math, sortings, two pointers	1900	x5242
1989B	Substring and Subsequence brute force, greedy, strings	1200	x18234
1988E	Range Minimum Sum binary search, brute force, data structures, divide and conquer, implementation	2300	x1137
1988D	The Omnipotent Monster Killer brute force, dfs and similar, dp, trees	2000	x4174
1988A	Split the Multiset brute force, greedy, implementation, math	900	x20407
1987E	Wonderful Tree! brute force, data structures, dfs and similar, dsu, greedy, trees	2000	x2912
1986G2	Permutation Problem (Hard Version) brute force, data structures, hashing, math, number theory	2500	x899
1986G1	Permutation Problem (Simple Version) binary search, brute force, combinatorics, data structures, math, number theory	2200	x1271
1986D	Mathematical Problem brute force, dp, greedy, implementation, math, two pointers	1400	x13842
1986B	Matrix Stabilization brute force, data structures, greedy, sortings	1000	x24768
1986A	X Axis brute force, geometry, math, sortings	800	x37119
1985H1	Maximize the Largest Component (Easy Version) brute force, data structures, dfs and similar, dsu, graphs, implementation	1700	x4898
1985E	Secret Box brute force, combinatorics, math	1200	x18272
1985B	Maximum Multiple Sum brute force, math, number theory	800	x41907
1984F	Reconstruction brute force, dp, math	2500	x841
1984D	''a'' String Problem brute force, hashing, implementation, math, string suffix structures, strings	2000	x2918
1983G	Your Loss bitmasks, brute force, dp, trees	3000	x175
1983C	Have Your Cake and Eat It Too binary search, brute force, greedy, implementation	1400	x11222
1982E	Number of k-good subarrays bitmasks, brute force, combinatorics, divide and conquer, dp, math, meet-in-the-middle	2300	x1397
1982D	Beauty of the mountains brute force, data structures, implementation, math, number theory	1700	x6387
1982B	Collatz Conjecture brute force, implementation, math, number theory	1200	x15534
1981C	Turtle and an Incomplete Sequence bitmasks, brute force, constructive algorithms, greedy, implementation, math	1800	x4731
1981A	Turtle and Piggy Are Playing a Game brute force, greedy, math	800	x21003
1979F	Kostyanych's Theorem brute force, constructive algorithms, graphs, interactive	2900	x258
1979D	Fixing a Binary String bitmasks, brute force, constructive algorithms, dp, greedy, hashing, strings	1800	x5990
1979A	Guess the Maximum brute force, greedy, implementation	800	x27634
1978E	Computing Machine brute force, data structures, dp, greedy, implementation	2000	x3328
1977D	XORificator bitmasks, brute force, greedy, hashing	2300	x1649
1977C	Nikita and LCM brute force, data structures, dp, greedy, math, number theory, sortings	1900	x6116
1975F	Set bitmasks, brute force, combinatorics, dfs and similar, divide and conquer, dp, math	2600	x729
1975D	Paint the Tree brute force, dfs and similar, dp, greedy, shortest paths, trees	1700	x5433
1975C	Chamo and Mocha's Array binary search, brute force, greedy	1200	x13449
1975B	378QAQ and Mocha's Array brute force, greedy, math, sortings	1000	x16597
1975A	Bazoka and Mocha's Array brute force, greedy, implementation, sortings	800	x17812
1974F	Cutting Game binary search, brute force, data structures, implementation, sortings, two pointers	1900	x3268
1973F	Maximum GCD Sum Queries bitmasks, brute force, dp, implementation, number theory	3100	x188
1973D	Cat, Fox and Maximum Array Split brute force, interactive, math	2400	x1769
1973A	Chess For Three brute force, dp, implementation, math	900	x22914
1972A	Contest Proposal brute force, greedy, two pointers	800	x21856
1971F	Circle Perimeter binary search, brute force, dfs and similar, geometry, implementation, math	1600	x9079
1970G2	Min-Fund Prison (Medium) brute force, dfs and similar, dp, graphs, trees	2200	x491
1970D1	Arithmancy (Easy) brute force, constructive algorithms, interactive, strings	2100	x525
1970A2	Balanced Unshuffle (Medium) brute force, constructive algorithms, trees	2400	x393
1968G2	Division + LCP (hard version) binary search, brute force, data structures, dp, hashing, math, string suffix structures, strings	2200	x1764
1968D	Permutation Game brute force, dfs and similar, games, graphs, greedy, math	1300	x14002
1968A	Maximize? brute force, math, number theory	800	x31891
1967F	Next and Prev brute force, data structures, implementation	3200	x57
1967C	Fenwick Tree bitmasks, brute force, combinatorics, data structures, dp, math, trees	2300	x1557
1967B2	Reverse Card (Hard Version) brute force, math, number theory	2200	x3633
1967B1	Reverse Card (Easy Version) brute force, math, number theory	1400	x12307
1957E	Carousel of Combinations brute force, combinatorics, dp, math, number theory	2400	x1168
1957D	A BIT of an Inequality bitmasks, brute force, dp, math	1900	x4190
1956E2	Nene vs. Monsters (Hard Version) brute force, greedy, implementation, math	2700	x786
1956E1	Nene vs. Monsters (Easy Version) brute force, implementation, math	2500	x1376
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x3644
1956A	Nene's Game binary search, brute force, data structures, games, greedy	800	x20838
1955H	The Most Reckless Defense bitmasks, brute force, constructive algorithms, dp, flows, graph matchings, shortest paths	2300	x1175
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x4172
1955E	Long Inversions brute force, greedy, implementation, sortings	1700	x8106
1952J	Help, what does it mean to be "Based" brute force, constructive algorithms, expression parsing, implementation, sortings		x737
1952F	Grid brute force		x1704
1952C	They Have Fooled brute force, schedules		x2825
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x3393
1950F	0, 1, 2, Tree! bitmasks, brute force, greedy, implementation, trees	1700	x8579
1950E	Nearly Shortest Repeating Substring brute force, implementation, number theory, strings	1500	x13562
1950D	Product of Binary Decimals brute force, dp, implementation, number theory	1100	x22190
1949E	Damage per Second brute force, math	2900	x92
1949B	Charming Meals binary search, brute force, greedy, sortings	1500	x2718
1949A	Grove brute force, dfs and similar, dp, geometry, probabilities	3300	x98
1948G	MST with Matching bitmasks, brute force, dsu, graph matchings, trees	3100	x666
1948E	Clique Partition brute force, constructive algorithms, graphs, greedy, implementation	2100	x2843
1948D	Tandem Repeats? brute force, strings, two pointers	1700	x8886
1948C	Arrow Path brute force, constructive algorithms, dfs and similar, dp, graphs, shortest paths	1300	x15913
1948B	Array Fix brute force, dp, greedy, implementation	1100	x22054
1948A	Special Characters brute force, constructive algorithms	800	x27737
1946D	Birthday Gift bitmasks, brute force, constructive algorithms, greedy, implementation	1900	x4436
1945H	GCD is Greater brute force, data structures, math, number theory	2600	x600
1945C	Left and Right Houses brute force	1200	x14246
1943E1	MEX Game 2 (Easy Version) binary search, brute force, greedy	2900	x408
1943D1	Counting Is Fun (Easy Version) brute force, combinatorics, dp, math	2400	x1369
1942F	Farmer John's Favorite Function brute force, data structures, implementation, math	2700	x660

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