Problemset - Codeforces

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Codeforces Round 945 (Div. 2)
4 days

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Difficulty: —

math

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Problems

#	Name
1349F2	Slime and Sequences (Hard Version) dp, fft, math	3500	x107
269E	String Theory geometry, math, strings	3100	x107
1912F	Fugitive Frenzy math, probabilities	3100	x105
1718E	Impressionism constructive algorithms, graphs, implementation, math	3500	x104
1184D2	Parallel Universes (Hard) math, matrices	3100	x102
1381E	Origami geometry, math, sortings	3300	x100
1773J	Jumbled Trees constructive algorithms, math	2900	x99
1540E	Tasty Dishes math, matrices	3500	x99
1266H	Red-Blue Graph dp, graphs, math, matrices, meet-in-the-middle	3400	x99
109E	Lucky Interval brute force, math	2700	x98
1704G	Mio and Lucky Array constructive algorithms, fft, math, strings	3500	x97
1936E	Yet Yet Another Permutation Problem divide and conquer, fft, math	3400	x96
128E	Birthday geometry, math	2900	x96
1045F	Shady Lady geometry, math	3400	x92
756F	Long number expression parsing, math, number theory	3400	x89
1896H2	Cyclic Hamming (Hard Version) brute force, dp, fft, math, number theory	3500	x87
1677F	Tokitsukaze and Gems dp, math	3500	x86
28E	DravDe saves the world geometry, math	2800	x85
901E	Cyclic Cipher fft, math	3300	x84
1949E	Damage per Second brute force, math	2900	x82
765G	Math, math everywhere brute force, dp, math, meet-in-the-middle, number theory	3200	x81
457E	Flow Optimality constructive algorithms, flows, math	3000	x81
1726H	Mainak and the Bleeding Polygon binary search, geometry, implementation, math	3500	x80
1896H1	Cyclic Hamming (Easy Version) brute force, divide and conquer, dp, fft, math, number theory	3400	x78
1761F2	Anti-median (Hard Version) combinatorics, dp, math	3500	x77
1687F	Koishi's Unconscious Permutation fft, math	3500	x77
1704H2	Game of AI (hard version) combinatorics, fft, math	3500	x76
1375I	Cubic Lattice geometry, math, matrices, number theory	3500	x76
1909I	Short Permutation Problem combinatorics, dp, fft, math	1900	x75
1949H	Division Avoidance greedy, math	3100	x74
1776N	Count Permutations math	3500	x71
1654H	Three Minimums combinatorics, constructive algorithms, divide and conquer, dp, fft, math	3500	x70
737F	Dirty plates constructive algorithms, math	3300	x69
1310F	Bad Cryptography math, number theory	3400	x67
865F	Egg Roulette bitmasks, brute force, divide and conquer, math, meet-in-the-middle	3300	x67
1211G	King's Path *special problem, math, trees	2500	x66
1297G	M-numbers *special problem, dp, math		x65
1776K	Uniform Chemistry dp, math	3200	x64
1666H	Heroes of Might math	3500	x60
100J	Interval Coloring *special problem, greedy, math	2400	x60
1280F	Intergalactic Sliding Puzzle combinatorics, constructive algorithms, math	3400	x58
1912I	Innovative Washing Machine geometry, math, two pointers	3300	x54
1967E2	Again Counting Arrays (Hard Version) combinatorics, dp, math	3500	x51
1403C	Chess Rush *special problem, combinatorics, dp, implementation, math	3200	x42
1425C	Captain of Knights math	3100	x39
1578G	Game of Chance math, probabilities	3500	x33
1488J	Flower Shop *special problem, data structures, fft, math	3100	x31

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