Problemset - Codeforces

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Codeforces Round 1124 (Div. 1)
01:51:21
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Codeforces Round 1124 (Div. 2)
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Problems

#	Name
2091B	Team Training dp, greedy, sortings	800	x33328
2091A	Olympiad Date greedy, strings	800	x39778
2090C	Dining Hall data structures, greedy, implementation, sortings	1700	x6572
2090B	Pushing Balls brute force, dp, implementation	1000	x17010
2090A	Treasure Hunt implementation, math	800	x21795
2089E	Black Cat Collapse	3500	x133
2089D	Conditional Operators constructive algorithms	3200	x200
2089C2	Key of Like (Hard Version) dp, math, probabilities	3100	x273
2089C1	Key of Like (Easy Version) dp, games, math, probabilities	2200	x1521
2089B2	Canteen (Hard Version) binary search, data structures, dp, flows, greedy, two pointers	2300	x1360
2089B1	Canteen (Easy Version) binary search, data structures, flows, greedy, two pointers	1900	x3363
2089A	Simple Permutation constructive algorithms, number theory	1700	x7523
2087I	Hamiltonian Partition special problem, special problem		x27
2087H	Nim with Special Numbers special problem, special problem		x28
2087G	Esports in Berland special problem, special problem, greedy, greedy		x90
2087F	Weapon Upgrade special problem, special problem, dp		x70
2087E	Color the Arrows special problem, special problem, dp, dp		x164
2087D	Uppercase or Lowercase? special problem, special problem, interactive		x268
2087C	Coin Game *special problem, greedy		x490
2087B	Showmatch *special problem		x571
2087A	Password Generator *special problem		x1058
2086F	Online Palindrome brute force, constructive algorithms, interactive	3000	x148
2086E	Zebra-like Numbers bitmasks, brute force, constructive algorithms, dfs and similar, dp, greedy, math	2400	x1723
2086D	Even String brute force, combinatorics, dp, math, strings	1700	x8734
2086C	Disappearing Permutation dfs and similar, dp, dsu, graphs, greedy, implementation	1300	x16742
2086B	Large Array and Segments binary search, brute force, greedy	1100	x19526
2086A	Cloudberry Jam math	800	x34219
2085F2	Serval and Colorful Array (Hard Version) data structures, greedy	2900	x543
2085F1	Serval and Colorful Array (Easy Version) data structures, greedy	2600	x821
2085E	Serval and Modulo constructive algorithms, math, number theory	2200	x3288
2085D	Serval and Kaitenzushi Buffet data structures, graph matchings, greedy	2000	x5593
2085C	Serval and The Formula bitmasks, constructive algorithms, dp, greedy	1600	x14196
2085B	Serval and Final MEX constructive algorithms, implementation	1200	x17611
2085A	Serval and String Theory constructive algorithms, implementation	900	x24096
2084H	Turtle and Nediam 2 dp, greedy	3500	x122
2084G2	Wish Upon a Satellite (Hard Version) data structures, dp	3500	x121
2084G1	Wish Upon a Satellite (Easy Version) dp, games	2600	x776
2084F	Skyscape constructive algorithms, data structures, greedy	2900	x528
2084E	Blossom binary search, combinatorics, dp, implementation, math, two pointers	2400	x1849
2084D	Arcology On Permafrost binary search, brute force, constructive algorithms, greedy, math	1600	x9240
2084C	You Soared Afar With Grace constructive algorithms, data structures, greedy, implementation	1400	x12161
2084B	MIN = GCD greedy, math, number theory	1100	x17317
2084A	Max and Mod constructive algorithms, math	800	x17650
2082B	Floor or Ceil brute force, greedy	1600	x8745
2082A	Binary Matrix constructive algorithms, greedy	800	x11374
2081G2	Hard Formula (Hard Version) math	3400	x57
2081G1	Hard Formula math, number theory	3100	x83
2081F	Hot Matrix constructive algorithms, math	3300	x149
2081E	Quantifier combinatorics, dp, implementation	3300	x92
2081D	MST in Modulo Graph constructive algorithms, dsu, graphs, greedy, math, number theory, sortings, trees	2600	x1253
2081C	Quaternary Matrix bitmasks, constructive algorithms, greedy, implementation, matrices	2700	x386
2081B	Balancing greedy	2500	x1039
2081A	Math Division bitmasks, dp, math, probabilities	1800	x4403
2080D	Order Statistics *special problem, binary search	3400	x49
2080C	Card Flip *special problem	2300	x222
2080B	Best Runner *special problem	1700	x536
2080A	Strong Connectivity Strikes Back *special problem, constructive algorithms, graphs	3200	x49
2079D	Cute Subsequences *special problem, sortings	1800	x723
2079C	Dreaming Is Not Harmful *special problem	2300	x233
2079B	Arithmetic Exercise *special problem, data structures, dp, greedy	2600	x186
2079A	Alice, Bob, And Two Arrays *special problem, data structures, dp, games	3300	x46
2078D	Scammy Game Ad dp, greedy, implementation	1800	x6804
2078B	Vicious Labyrinth constructive algorithms, graphs, greedy, implementation, math	1100	x18760
2078A	Final Verdict math	800	x23583
2077G	RGB Walking bitmasks, chinese remainder theorem, dfs and similar, graphs, number theory	3500	x155
2077F	AND x OR bitmasks, constructive algorithms, dp	3300	x279
2077E	Another Folding Strip combinatorics, constructive algorithms, data structures, divide and conquer, dp, greedy, math	2700	x647
2077D	Maximum Polygon brute force, data structures, greedy, implementation, math	3100	x397
2077C	Binary Subsequence Value Sum combinatorics, data structures, dp, fft, math, matrices	2300	x2460
2077B	Finding OR Sum bitmasks, constructive algorithms, implementation, interactive, math	1900	x3824
2077A	Breach of Faith constructive algorithms, greedy, math, sortings	1500	x15118
2075F	Beautiful Sequence Returns binary search, brute force, data structures, implementation	3000	x544
2075E	XOR Matrix bitmasks, combinatorics, dp, implementation, math	2500	x1220
2075D	Equalization bitmasks, brute force, dp, graphs, math	2000	x6133
2075C	Two Colors binary search, combinatorics, math	1500	x14965
2075B	Array Recoloring constructive algorithms, greedy	1300	x19494
2075A	To Zero greedy, math	800	x28311
2074G	Game With Triangles: Season 2 dp, geometry	2100	x2260
2074F	Counting Necessary Nodes bitmasks, divide and conquer, greedy, implementation, math	2000	x2555
2074E	Empty Triangle geometry, interactive, probabilities	1600	x6952
2074D	Counting Points brute force, data structures, geometry, implementation, two pointers	1400	x12485
2074C	XOR and Triangle bitmasks, brute force, geometry, greedy, probabilities	1100	x22584
2074B	The Third Side geometry, greedy, math	800	x35681
2074A	Draw a Square geometry, implementation	800	x45572
2073M	Can You Reach There?	3300	x86
2073L	Boarding Queue	1300	x1859
2073K	Book Sorting	2900	x258
2073J	Gathering Sharks	2000	x1228
2073I	Squares on Grid Lines	3100	x131
2073H	Secret Lilies and Roses interactive	2700	x394
2073G	Corrupted File	2200	x956
2073F	Hold the Star	3500	x83
2073E	Minus Operator interactive	3300	x86
2073D	Tower of Hanoi	2400	x593
2073C	Cactus Connectivity	2700	x348
2073B	Three-Dimensional Embedding	3500	x72
2073A	Control Towers	1900	x1295
2072G	I've Been Flipping Numbers for 300 Years and Calculated the Sum binary search, brute force, combinatorics, divide and conquer, math, number theory	2200	x2217
2072F	Goodbye, Banker Life 2-sat, bitmasks, combinatorics, constructive algorithms, fft, math, number theory	1700	x8799
2072E	Do You Love Your Hero and His Two-Hit Multi-Target Attacks? binary search, brute force, constructive algorithms, dp, geometry, greedy, math	1500	x12791

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