Problemset - Codeforces

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Codeforces Round 988 (Div. 3)
09:03:25
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Problems

#	Name
1988B	Make Majority greedy, implementation	900	x22749
1988A	Split the Multiset brute force, greedy, implementation, math	900	x23222
1987H	Fumo Temple interactive	3500	x102
1987G2	Spinning Round (Hard Version) divide and conquer, dp, trees	3500	x173
1987G1	Spinning Round (Easy Version) divide and conquer, dp, trees	2900	x275
1987F2	Interesting Problem (Hard Version) dp	2600	x1019
1987F1	Interesting Problem (Easy Version) dp	2500	x1120
1987E	Wonderful Tree! brute force, data structures, dfs and similar, dsu, greedy, trees	2000	x3397
1987D	World is Mine dp, games	1800	x7168
1987C	Basil's Garden dp, greedy	1200	x17362
1987B	K-Sort greedy	1000	x20460
1987A	Upload More RAM greedy, math	800	x25347
1986G2	Permutation Problem (Hard Version) brute force, data structures, hashing, math, number theory	2500	x1087
1986G1	Permutation Problem (Simple Version) binary search, brute force, combinatorics, data structures, math, number theory	2200	x1496
1986F	Non-academic Problem dfs and similar, graphs, trees	1900	x4567
1986E	Beautiful Array greedy, math, number theory, sortings	1700	x8830
1986D	Mathematical Problem brute force, dp, greedy, implementation, math, two pointers	1400	x15214
1986C	Update Queries data structures, greedy, sortings	1100	x22841
1986B	Matrix Stabilization brute force, data structures, greedy, sortings	1000	x26604
1986A	X Axis brute force, geometry, math, sortings	800	x40483
1985H2	Maximize the Largest Component (Hard Version) data structures, dfs and similar, dp, dsu, implementation	2200	x1534
1985H1	Maximize the Largest Component (Easy Version) brute force, data structures, dfs and similar, dsu, graphs, implementation	1700	x5608
1985G	D-Function combinatorics, math, number theory	1600	x9406
1985F	Final Boss binary search, data structures	1500	x15343
1985E	Secret Box brute force, combinatorics, math	1200	x19930
1985D	Manhattan Circle implementation, math	900	x34586
1985C	Good Prefixes greedy	1000	x32381
1985B	Maximum Multiple Sum brute force, math, number theory	800	x46343
1985A	Creating Words implementation, strings	800	x53867
1984H	Tower Capturing combinatorics, dp, geometry	3300	x169
1984G	Magic Trick II constructive algorithms, implementation, sortings	3200	x260
1984F	Reconstruction brute force, dp, math	2500	x941
1984E	Shuffle dp, greedy, trees	2400	x1402
1984D	''a'' String Problem brute force, hashing, implementation, math, string suffix structures, strings	2000	x3288
1984C2	Magnitude (Hard Version) combinatorics, dp, greedy, math	1700	x7415
1984C1	Magnitude (Easy Version) dp, greedy, math	1300	x16652
1984B	Large Addition implementation, math	1100	x18301
1984A	Strange Splitting constructive algorithms	800	x21155
1983G	Your Loss bitmasks, brute force, dp, trees	3000	x212
1983F	array-value binary search, bitmasks, data structures, greedy, two pointers	2500	x1202
1983E	I Love Balls combinatorics, math, probabilities	2300	x2011
1983D	Swap Dilemma constructive algorithms, data structures, divide and conquer, greedy, math, sortings	1700	x8211
1983C	Have Your Cake and Eat It Too binary search, brute force, greedy, implementation	1400	x12564
1983B	Corner Twist constructive algorithms, greedy, implementation, math	1200	x16114
1983A	Array Divisibility constructive algorithms, math	800	x25655
1982F	Sorting Problem Again binary search, data structures, sortings	2600	x956
1982E	Number of k-good subarrays bitmasks, brute force, combinatorics, divide and conquer, dp, math, meet-in-the-middle	2300	x1599
1982D	Beauty of the mountains brute force, data structures, implementation, math, number theory	1700	x7157
1982C	Boring Day binary search, data structures, dp, greedy, two pointers	1200	x17563
1982B	Collatz Conjecture brute force, implementation, math, number theory	1200	x16970
1982A	Soccer greedy, implementation, math, sortings	800	x25132
1981F	Turtle and Paths on a Tree data structures, dp, trees	3000	x274
1981E	Turtle and Intersected Segments data structures, dsu, graphs, greedy	2600	x906
1981D	Turtle and Multiplication constructive algorithms, dfs and similar, graphs, number theory	2400	x1667
1981C	Turtle and an Incomplete Sequence bitmasks, brute force, constructive algorithms, greedy, implementation, math	1800	x5345
1981B	Turtle and an Infinite Sequence bitmasks, math	1300	x13742
1981A	Turtle and Piggy Are Playing a Game brute force, greedy, math	800	x22299
1980G	Yasya and the Mysterious Tree bitmasks, data structures, dfs and similar, graphs, greedy, strings, trees	2300	x1252
1980F2	Field Division (hard version) math, sortings	2400	x999
1980F1	Field Division (easy version) data structures, math, sortings	1900	x3744
1980E	Permutation of Rows and Columns constructive algorithms, data structures, greedy, hashing, implementation, math, matrices, sortings	1600	x10521
1980D	GCD-sequence greedy, implementation, math, number theory	1400	x14318
1980C	Sofia and the Lost Operations constructive algorithms, greedy	1300	x18623
1980B	Choosing Cubes sortings, sortings	800	x34705
1980A	Problem Generator math	800	x40668
1979F	Kostyanych's Theorem brute force, constructive algorithms, graphs, interactive	2900	x315
1979E	Manhattan Triangle binary search, constructive algorithms, data structures, geometry, implementation, two pointers	2400	x1451
1979D	Fixing a Binary String bitmasks, brute force, constructive algorithms, dp, greedy, hashing, strings	1800	x6644
1979C	Earning on Bets binary search, combinatorics, constructive algorithms, number theory	1200	x18796
1979B	XOR Sequences bitmasks, greedy	1000	x22610
1979A	Guess the Maximum brute force, greedy, implementation	800	x29049
1978F	Large Graph data structures, dfs and similar, dsu, graphs, number theory, two pointers	2400	x1343
1978E	Computing Machine brute force, data structures, dp, greedy, implementation	2000	x3829
1978D	Elections data structures, greedy, implementation, math	1600	x11329
1978C	Manhattan Permutations constructive algorithms, data structures, greedy, implementation, math	1300	x14979
1978B	New Bakery binary search, greedy, math, ternary search	800	x22374
1978A	Alice and Books constructive algorithms, greedy, sortings	800	x25707
1977E	Tensor constructive algorithms, graphs, interactive	2600	x684
1977D	XORificator bitmasks, brute force, greedy, hashing	2300	x1856
1977C	Nikita and LCM brute force, data structures, dp, greedy, math, number theory, sortings	1900	x6764
1977B	Binary Colouring bitmasks, constructive algorithms, greedy, math	1100	x17653
1977A	Little Nikita math	800	x33059
1976F	Remove Bridges data structures, dfs and similar, dp, greedy, sortings, trees	2800	x589
1976E	Splittable Permutations combinatorics, data structures, dfs and similar, greedy, math, trees	2500	x1043
1976D	Invertible Bracket Sequences binary search, combinatorics, data structures, divide and conquer, implementation, two pointers	2000	x4625
1976C	Job Interview binary search, dp, greedy, implementation, two pointers	1600	x10409
1976B	Increase/Decrease/Copy greedy, implementation	1100	x22277
1976A	Verify Password implementation, sortings, strings	800	x28611
1975I	Mind Bloom dp	3500	x100
1975H	378QAQ and Core greedy, strings	3500	x116
1975G	Zimpha Fan Club fft, greedy, math, strings	3000	x225
1975F	Set bitmasks, brute force, combinatorics, dfs and similar, divide and conquer, dp, math	2600	x829
1975E	Chain Queries binary search, data structures, dfs and similar, implementation, trees	2100	x2326
1975D	Paint the Tree brute force, dfs and similar, dp, greedy, shortest paths, trees	1700	x6036
1975C	Chamo and Mocha's Array binary search, brute force, greedy	1200	x14589
1975B	378QAQ and Mocha's Array brute force, greedy, math, sortings	1000	x17871
1975A	Bazoka and Mocha's Array brute force, greedy, implementation, sortings	800	x18509
1974G	Money Buys Less Happiness Now data structures, greedy, sortings	2000	x4368
1974F	Cutting Game binary search, brute force, data structures, implementation, sortings, two pointers	1900	x3579
1974E	Money Buys Happiness dp	1800	x8054