Problemset - Codeforces

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Codeforces Round (Div. 2)
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Problems

#	Name
1488J	Flower Shop *special problem, data structures, fft, math	3100	x35
1488I	Demonic Invasion *special problem, flows	3100	x37
1488H	Build From Suffixes *special problem, combinatorics, data structures	2800	x58
1488G	Painting Numbers *special problem, data structures, greedy, number theory	2500	x122
1488F	Dogecoin special problem, special problem, binary search, data structures	2300	x174
1488E	Palindromic Doubles *special problem, data structures, dp	2200	x212
1488D	Problemsolving Marathon *special problem, binary search, greedy	1900	x336
1488C	Two Policemen *special problem, binary search, brute force, math	1900	x404
1488B	RBS Deletion *special problem, greedy	1800	x554
1488A	From Zero To Y *special problem, math	900	x1378
1431J	Zero-XOR Array *special problem, dp	3400	x44
1431I	Cyclic Shifts *special problem, strings	2900	x45
1431H	Rogue-like Game *special problem, brute force, greedy, two pointers	2600	x67
1431G	Number Deletion Game *special problem, dp, games, greedy	2100	x180
1431F	Neural Network Problem *special problem, binary search, greedy	2100	x156
1431E	Chess Match *special problem	2000	x220
1431D	Used Markers *special problem, greedy	1500	x451
1431C	Black Friday *special problem, implementation	1600	x701
1431B	Polycarp and the Language of Gods *special problem, implementation, two pointers	1400	x1006
1431A	Selling Hamburgers *special problem	800	x1821
1403C	Chess Rush *special problem, combinatorics, dp, implementation, math	3200	x48
1403B	Spring cleaning *special problem, data structures, dfs and similar, graphs, trees	2300	x362
1403A	The Potion of Great Power *special problem, 2-sat, binary search, data structures, graphs, interactive, sortings, two pointers	2400	x290
1402C	Star Trek *special problem, combinatorics, dfs and similar, dp, games, graphs, matrices, trees	2600	x201
1402B	Roads *special problem, geometry, sortings	2900	x109
1402A	Fancy Fence *special problem, data structures, dsu, implementation, math, sortings	1800	x1167
1387C	Viruses *special problem, dp, shortest paths, string suffix structures	2900	x127
1387B2	Village (Maximum) *special problem, dfs and similar, trees	2500	x856
1387B1	Village (Minimum) *special problem, dp, greedy, trees	2100	x1370
1387A	Graph *special problem, binary search, dfs and similar, dp, math, ternary search	2100	x689
1386C	Joker *special problem, bitmasks, data structures, divide and conquer, dsu	2800	x457
1386B	Mixture *special problem, data structures, geometry, math, sortings	2900	x121
1386A	Colors *special problem, binary search, constructive algorithms, interactive	2700	x255
1356D2	Quantum Classification - 2 *special problem		x126
1356D1	Quantum Classification - 1 *special problem		x135
1356C	Prepare state \|01⟩ + \|10⟩ + \|11⟩ *special problem		x301
1356B2	Decrement *special problem		x281
1356B1	Increment *special problem		x281
1356A5	Distinguish Z from -Z *special problem		x329
1356A4	Distinguish I ⊗ X from CNOT *special problem		x457
1356A3	Distinguish Z from S *special problem		x459
1356A2	Distinguish I from Z *special problem		x486
1356A1	Distinguish I from X *special problem		x601
1346I	Pac-Man 2.0 *special problem, dp	2900	x48
1346H	Game with Segments *special problem, data structures, games	2700	x49
1346G	Two IP Cameras *special problem, math, number theory	2300	x134
1346F	Dune II: Battle For Arrakis *special problem, data structures, greedy, math	2000	x223
1346E	Magic Tricks *special problem, dp, graphs	1700	x374
1346D	Constructing the Dungeon *special problem, graphs, greedy	1600	x486
1346C	Spring Cleaning *special problem, greedy, sortings	1600	x589
1346B	Boot Camp *special problem, greedy	1400	x1188
1346A	Color Revolution *special problem, math	1000	x1966
1331H	It's showtime *special problem		x621
1331G	Lingua Romana *special problem		x496
1331F	Elementary! *special problem, brute force, dp, strings		x560
1331E	Jordan Smiley *special problem, dfs and similar, geometry, implementation		x1206
1331D	Again? *special problem, implementation		x11870
1331C	...And after happily lived ever they *special problem, bitmasks		x3143
1331B	Limericks *special problem, math, number theory		x6990
1331A	Is it rated? *special problem		x17053
1297I	Falling Blocks *special problem, data structures		x31
1297H	Paint the String *special problem, dp, strings		x43
1297G	M-numbers *special problem, dp, math		x69
1297F	Movie Fan *special problem, data structures, greedy, implementation, sortings		x117
1297E	Modernization of Treeland *special problem, dfs and similar, trees		x205
1297D	Bonus Distribution *special problem, binary search, greedy, sortings		x262
1297C	Dream Team *special problem, greedy		x399
1297B	Cartoons *special problem, implementation, sortings		x413
1297A	Likes Display *special problem, implementation		x941
1275F	Шардирование постов *special problem, binary search, interactive		x91
1275E3	Контрольная сумма *special problem		x56
1275E2	Контрольная сумма *special problem		x130
1275E1	Контрольная сумма *special problem		x254
1275D	Storage2 *special problem		x421
1275C	#define Задача B ... *special problem		x668
1275B	Code Review *special problem		x820
1275A	Скрытый друг *special problem		x887
1211I	Unusual Graph *special problem, graphs	3000	x37
1211H	Road Repair in Treeland *special problem, binary search, dp, trees	3100	x45
1211G	King's Path *special problem, math, trees	2500	x70
1211F	kotlinkotlinkotlinkotlin... *special problem, graphs, implementation, strings	2300	x121
1211E	Double Permutation Inc. *special problem, binary search, greedy	2000	x191
1211D	Teams *special problem, binary search, greedy, math	2000	x227
1211C	Ice Cream *special problem, greedy, sortings	1700	x483
1211B	Traveling Around the Golden Ring of Berland *special problem, implementation	1500	x760
1211A	Three Problems *special problem, implementation	1000	x1382
1193C	Scissors and Tape *special problem, constructive algorithms, geometry		x38
1193B	Magic Tree *special problem, data structures, dp, trees		x427
1193A	Amusement Park *special problem, dp, math		x258
1192C	Cubeword *special problem, brute force, dp, meet-in-the-middle		x326
1192B	Dynamic Diameter *special problem, data structures, dfs and similar, divide and conquer, trees		x1104
1192A	Building Skyscrapers *special problem		x62
1170I	Good Subsets *special problem, dp		x39
1170H	Longest Saw *special problem, constructive algorithms		x47
1170G	Graph Decomposition *special problem, graphs		x72
1170F	Wheels *special problem, binary search, greedy		x119
1170E	Sliding Doors *special problem, binary search		x258
1170D	Decoding of Integer Sequences *special problem, data structures, implementation		x424
1170C	Minus and Minus Give Plus *special problem, implementation, strings		x788
1170B	Bad Days *special problem, implementation		x1077