Problemset - Codeforces

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Codeforces Round 995 (Div. 3)
07:45:19
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Problems

#	Name
1980A	Problem Generator math	800	x41523
1979F	Kostyanych's Theorem brute force, constructive algorithms, graphs, interactive	2900	x330
1979E	Manhattan Triangle binary search, constructive algorithms, data structures, geometry, implementation, two pointers	2400	x1491
1979D	Fixing a Binary String bitmasks, brute force, constructive algorithms, dp, greedy, hashing, strings	1800	x6743
1979C	Earning on Bets binary search, combinatorics, constructive algorithms, number theory	1200	x19111
1979B	XOR Sequences bitmasks, greedy	1000	x23048
1979A	Guess the Maximum brute force, greedy, implementation	800	x29356
1978F	Large Graph data structures, dfs and similar, dsu, graphs, number theory, two pointers	2400	x1365
1978E	Computing Machine brute force, data structures, dp, greedy, implementation	2000	x3896
1978D	Elections data structures, greedy, implementation, math	1600	x11528
1978C	Manhattan Permutations constructive algorithms, data structures, greedy, implementation, math	1300	x15230
1978B	New Bakery binary search, greedy, math, ternary search	800	x22704
1978A	Alice and Books constructive algorithms, greedy, sortings	800	x26049
1977E	Tensor constructive algorithms, graphs, interactive	2600	x702
1977D	XORificator bitmasks, brute force, greedy, hashing	2300	x1903
1977C	Nikita and LCM brute force, data structures, dp, greedy, math, number theory, sortings	1900	x6861
1977B	Binary Colouring bitmasks, constructive algorithms, greedy, math	1100	x17907
1977A	Little Nikita math	800	x33905
1976F	Remove Bridges data structures, dfs and similar, dp, greedy, sortings, trees	2800	x603
1976E	Splittable Permutations combinatorics, data structures, dfs and similar, greedy, math, trees	2500	x1068
1976D	Invertible Bracket Sequences binary search, combinatorics, data structures, divide and conquer, implementation, two pointers	2000	x4705
1976C	Job Interview binary search, dp, greedy, implementation, two pointers	1600	x10560
1976B	Increase/Decrease/Copy greedy, implementation	1100	x22542
1976A	Verify Password implementation, sortings, strings	800	x29122
1975I	Mind Bloom dp	3500	x104
1975H	378QAQ and Core greedy, strings	3500	x121
1975G	Zimpha Fan Club fft, greedy, math, strings	3000	x243
1975F	Set bitmasks, brute force, combinatorics, dfs and similar, divide and conquer, dp, math	2600	x849
1975E	Chain Queries binary search, data structures, dfs and similar, implementation, trees	2100	x2369
1975D	Paint the Tree brute force, dfs and similar, dp, greedy, shortest paths, trees	1700	x6163
1975C	Chamo and Mocha's Array binary search, brute force, greedy	1200	x14839
1975B	378QAQ and Mocha's Array brute force, greedy, math, sortings	1000	x18201
1975A	Bazoka and Mocha's Array brute force, greedy, implementation, sortings	800	x19005
1974G	Money Buys Less Happiness Now data structures, greedy, sortings	2000	x4459
1974F	Cutting Game binary search, brute force, data structures, implementation, sortings, two pointers	1900	x3645
1974E	Money Buys Happiness dp	1800	x8221
1974D	Ingenuity-2 constructive algorithms, greedy, implementation	1400	x15093
1974C	Beautiful Triple Pairs combinatorics, data structures	1400	x16026
1974B	Symmetric Encoding implementation, sortings, strings	800	x30867
1974A	Phone Desktop greedy, math	800	x33718
1973F	Maximum GCD Sum Queries bitmasks, brute force, dp, implementation, number theory	3100	x241
1973E	Cat, Fox and Swaps graphs, math, sortings	2500	x824
1973D	Cat, Fox and Maximum Array Split brute force, interactive, math	2400	x1954
1973C	Cat, Fox and Double Maximum constructive algorithms, greedy, implementation, math, sortings	1700	x8510
1973B	Cat, Fox and the Lonely Array binary search, bitmasks, data structures, greedy, math, two pointers	1300	x14324
1973A	Chess For Three brute force, dp, implementation, math	900	x24998
1972B	Coin Games games	900	x22179
1972A	Contest Proposal brute force, greedy, two pointers	800	x23306
1971H	±1 2-sat, dfs and similar, graphs	2100	x1906
1971G	XOUR data structures, dsu, sortings	1700	x9481
1971F	Circle Perimeter binary search, brute force, dfs and similar, geometry, implementation, math	1600	x10301
1971E	Find the Car binary search, math, sortings	1500	x14709
1971D	Binary Cut dp, greedy, implementation, sortings, strings	1100	x26430
1971C	Clock and Strings implementation	900	x34079
1971B	Different String implementation, strings	800	x37815
1971A	My First Sorting Problem implementation, sortings	800	x47110
1970G3	Min-Fund Prison (Hard) bitmasks, dfs and similar, dp, graphs, trees	2400	x371
1970G2	Min-Fund Prison (Medium) brute force, dfs and similar, dp, graphs, trees	2200	x619
1970G1	Min-Fund Prison (Easy) dfs and similar, trees	1900	x1400
1970F3	Playing Quidditch (Hard) implementation	2300	x371
1970F2	Playing Quidditch (Medium) implementation	2300	x354
1970F1	Playing Quidditch (Easy) implementation	2300	x434
1970E3	Trails (Hard) dp, matrices	2200	x789
1970E2	Trails (Medium) dp, matrices	2000	x1360
1970E1	Trails (Easy) dp	1800	x2340
1970D3	Arithmancy (Hard) interactive	3100	x112
1970D2	Arithmancy (Medium) constructive algorithms, interactive, probabilities, strings	2600	x217
1970D1	Arithmancy (Easy) brute force, constructive algorithms, interactive, strings	2100	x679
1970C3	Game on Tree (Hard) dfs and similar, dp, games, trees	1900	x1653
1970C2	Game on Tree (Medium) dfs and similar, dp, games, trees	1700	x2911
1970C1	Game on Tree (Easy) games	1400	x3624
1970B3	Exact Neighbours (Hard) constructive algorithms	2300	x501
1970B2	Exact Neighbours (Medium) constructive algorithms	2100	x849
1970B1	Exact Neighbours (Easy) constructive algorithms	1900	x1195
1970A3	Balanced Unshuffle (Hard) constructive algorithms, trees	2400	x507
1970A2	Balanced Unshuffle (Medium) brute force, constructive algorithms, trees	2400	x470
1970A1	Balanced Shuffle (Easy) implementation, sortings	1000	x5183
1969F	Card Pairing dp, greedy, hashing, implementation	3000	x283
1969E	Unique Array binary search, data structures, divide and conquer, dp, greedy	2400	x1445
1969D	Shop Game data structures, greedy, math, sortings	1900	x4725
1969C	Minimizing the Sum dp, implementation	1700	x9014
1969B	Shifts and Sorting constructive algorithms, greedy	1000	x19423
1969A	Two Friends constructive algorithms, implementation, math	800	x20245
1968G2	Division + LCP (hard version) binary search, brute force, data structures, dp, hashing, math, string suffix structures, strings	2200	x2006
1968G1	Division + LCP (easy version) binary search, data structures, dp, hashing, string suffix structures, strings	1900	x4367
1968F	Equal XOR Segments binary search, data structures	1800	x5630
1968E	Cells Arrangement constructive algorithms	1600	x10630
1968D	Permutation Game brute force, dfs and similar, games, graphs, greedy, math	1300	x15167
1968C	Assembly via Remainders constructive algorithms, number theory	1000	x25484
1968B	Prefiquence greedy, two pointers	800	x28274
1968A	Maximize? brute force, math, number theory	800	x35130
1967F	Next and Prev brute force, data structures, implementation	3200	x71
1967E2	Again Counting Arrays (Hard Version) combinatorics, dp, math	3500	x107
1967E1	Again Counting Arrays (Easy Version) combinatorics, dp, fft, math	3100	x219
1967D	Long Way to be Non-decreasing binary search, dfs and similar, graphs, implementation, shortest paths, two pointers	2800	x684
1967C	Fenwick Tree bitmasks, brute force, combinatorics, data structures, dp, math, trees	2300	x1801
1967B2	Reverse Card (Hard Version) brute force, math, number theory	2200	x3998
1967B1	Reverse Card (Easy Version) brute force, math, number theory	1400	x13545
1967A	Permutation Counting binary search, greedy, implementation, math, sortings	1400	x12724
1966B	Rectangle Filling constructive algorithms, implementation	1100	x15215