Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
03:40:07
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Before contest
Codeforces Round 941 (Div. 2)
03:40:06
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Problems

#	Name
1089D	Distance Sum graphs	3100	x98
109E	Lucky Interval brute force, math	2700	x98
1852F	Panda Meetups data structures, dp, flows	3500	x97
1773J	Jumbled Trees constructive algorithms, math	2900	x97
1762G	Unequal Adjacent Elements constructive algorithms, sortings	3100	x97
1081H	Palindromic Magic data structures, hashing, strings	3500	x97
720C	Homework constructive algorithms	3100	x97
530F	Jumping frogs *special problem	2100	x97
1704G	Mio and Lucky Array constructive algorithms, fft, math, strings	3500	x96
470F	Pairwise Sums *special problem	2300	x96
128E	Birthday geometry, math	2900	x96
1761G	Centroid Guess interactive, probabilities, trees	3500	x95
1510H	Hard Optimization dp	3200	x95
683H	Exchange of Books *special problem	1900	x95
1641F	Covering Circle geometry	3500	x94
925F	Parametric Circulation binary search, flows	3100	x94
89E	Fire and Ice greedy	2900	x94
1936E	Yet Yet Another Permutation Problem divide and conquer, fft, math	3400	x93
1656I	Neighbour Ordering constructive algorithms, graphs	3500	x93
730K	Roads Orientation Problem graphs	3200	x93
207D7	The Beaver's Problem - 3	1600	x93
119E	Alternative Reality geometry	2400	x93
1097H	Mateusz and an Infinite Sequence bitmasks, brute force, dp, strings	3400	x92
1045F	Shady Lady geometry, math	3400	x92
1667F	Yin Yang implementation	3500	x91
1275F	Шардирование постов *special problem, binary search, interactive		x91
187E	Heaven Tour data structures, greedy	2900	x91
1302D	Dijkstra		x90
1071E	Rain Protection binary search, geometry	3500	x90
955E	Icicles	2900	x90
690B3	Recover Polygon (hard) data structures	2600	x90
470G	Hamming Distance *special problem	2300	x90
756F	Long number expression parsing, math, number theory	3400	x89
1770H	Koxia, Mahiru and Winter Festival constructive algorithms	3500	x88
1746G	Olympiad Training binary search, data structures, dp, flows, geometry, implementation, sortings	3500	x88
1322F	Assigning Fares dp, trees	3500	x88
1090H	Linearization graphs	2900	x88
641G	Little Artem and Graph	2300	x88
398E	Sorting Permutations		x88
162J	Brackets *special problem	1800	x88
154E	Martian Colony geometry	3000	x88
1218G	Alpha planetary system constructive algorithms, graphs, shortest paths	3000	x87
1190F	Tokitsukaze and Powers number theory, probabilities	3400	x87
730F	Ber Patio	3100	x87
1906D	Spaceship Exploration binary search, geometry	2800	x86
1781H2	Window Signals (hard version)	3500	x86
1609H	Pushing Robots	3500	x86
1533G	Biome Map *special problem, constructive algorithms, dfs and similar, graphs		x86
1428H	Rotary Laser Lock binary search, interactive	3500	x86
1078E	Negative Time Summation constructive algorithms	3400	x86
1896H2	Cyclic Hamming (Hard Version) brute force, dp, fft, math, number theory	3500	x85
1677F	Tokitsukaze and Gems dp, math	3500	x85
28E	DravDe saves the world geometry, math	2800	x85
1889E	Doremy's Swapping Trees dfs and similar, graphs, trees	3500	x84
1628F	Spaceship Crisis Management binary search, data structures, geometry, sortings	3500	x84
958D2	Hyperspace Jump (hard)	2700	x84
901E	Cyclic Cipher fft, math	3300	x84
65E	Harry Potter and Moving Staircases dfs and similar, implementation	2900	x84
64I	Sort the Table *special problem, sortings	2400	x84
648E	Собери число graphs, shortest paths	2300	x83
1864I	Future Dominators graphs, greedy	3500	x82
126E	Pills brute force, flows	2900	x82
39K	Testing	2600	x82
1357D4	Quantum Classification - Dataset 6		x81
1349E	Slime and Hats constructive algorithms, dp, greedy	3500	x81
730L	Expression Queries data structures	3200	x81
457E	Flow Optimality constructive algorithms, flows, math	3000	x81
207D9	The Beaver's Problem - 3	1800	x81
207D8	The Beaver's Problem - 3	2300	x81
1949A	Grove brute force, dfs and similar, dp, geometry, probabilities		x80
1726H	Mainak and the Bleeding Polygon binary search, geometry, implementation, math	3500	x80
1533H	Submatrices *special problem, bitmasks, data structures, dp		x80
471E	MUH and Lots and Lots of Segments data structures, dsu	2700	x80
1545E2	AquaMoon and Time Stop (hard version) data structures, dp	3500	x79
765G	Math, math everywhere brute force, dp, math, meet-in-the-middle, number theory	3200	x79
207D10	The Beaver's Problem - 3	2100	x79
142E	Help Greg the Dwarf 2 geometry	3000	x79
1949E	Damage per Second brute force, math		x78
1940A	Parallel Universes *special problem, constructive algorithms, dfs and similar, dsu, graphs		x78
1357D5	Quantum Classification - Dataset 7		x78
1276E	Four Stones constructive algorithms	3500	x78
771F	Bear and Isomorphic Points geometry, two pointers	3300	x78
690F2	Tree of Life (medium) constructive algorithms, hashing, trees	2700	x78
661E	Divisibility Check *special problem	2000	x78
1938D	Bánh Bò	3300	x77
1910H	Sum of Digits of Sums *special problem, binary search, data structures	2400	x77
1896H1	Cyclic Hamming (Easy Version) brute force, divide and conquer, dp, fft, math, number theory	3400	x77
1870H	Standard Graph Problem data structures, graphs, greedy, trees	3500	x77
1687F	Koishi's Unconscious Permutation fft, math	3500	x77
838F	Expected Earnings	2800	x77
207D6	The Beaver's Problem - 3	2100	x77
153D	Date Change *special problem	2000	x77
1761F2	Anti-median (Hard Version) combinatorics, dp, math	3500	x76
1446E	Long Recovery constructive algorithms, dfs and similar	3500	x76
1375I	Cubic Lattice geometry, math, matrices, number theory	3500	x76
1704H2	Game of AI (hard version) combinatorics, fft, math	3500	x75
1055G	Jellyfish Nightmare	3500	x75
345D	Chain Letter *special problem, dfs and similar, graphs	2200	x75
207C2	Game with Two Trees	2200	x75
72B	INI-file *special problem, implementation	2200	x75