Problemset - Codeforces

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Educational Codeforces Round 173 (Rated for Div. 2)
29:53:08
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Problems

#	Name
1372E	Omkar and Last Floor dp, greedy, two pointers	2900	x1245
1372D	Omkar and Circle brute force, dp, games, greedy	2100	x5438
1372C	Omkar and Baseball constructive algorithms, math	1500	x18019
1372B	Omkar and Last Class of Math greedy, math, number theory	1300	x28703
1372A	Omkar and Completion constructive algorithms, implementation	800	x32105
1371F	Raging Thunder data structures, divide and conquer, implementation	2800	x625
1371E2	Asterism (Hard Version) binary search, combinatorics, dp, math, number theory, sortings	2300	x2368
1371E1	Asterism (Easy Version) binary search, brute force, combinatorics, math, number theory, sortings	1900	x5287
1371D	Grid-00100 constructive algorithms, greedy, implementation	1600	x13067
1371C	A Cookie for You greedy, implementation, math	1300	x20667
1371B	Magical Calendar math	1200	x19232
1371A	Magical Sticks math	800	x46737
1370F2	The Hidden Pair (Hard Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2700	x1514
1370F1	The Hidden Pair (Easy Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2400	x1640
1370E	Binary Subsequence Rotation binary search, constructive algorithms, data structures, greedy	2100	x4932
1370D	Odd-Even Subsequence binary search, dp, dsu, greedy, implementation	2000	x9818
1370C	Number Game games, math, number theory	1400	x24900
1370B	GCD Compression constructive algorithms, math, number theory	1100	x23867
1370A	Maximum GCD greedy, implementation, math, number theory	800	x53594
1369F	BareLee dfs and similar, dp, games	2700	x654
1369E	DeadLee data structures, dfs and similar, greedy, implementation, sortings	2400	x2286
1369D	TediousLee dp, graphs, greedy, math, trees	1900	x8719
1369C	RationalLee greedy, math, sortings, two pointers	1400	x19735
1369B	AccurateLee greedy, implementation, strings	1200	x24610
1369A	FashionabLee geometry, math	800	x36912
1368H2	Breadboard Capacity (hard version)	3500	x232
1368H1	Breadboard Capacity (easy version) dp, flows, greedy	3300	x358
1368G	Shifting Dominoes data structures, geometry, graphs, trees	3200	x610
1368F	Lamps on a Circle games, implementation, interactive, math	2600	x1054
1368E	Ski Accidents constructive algorithms, graphs, greedy	2500	x2231
1368D	AND, OR and square sum bitmasks, greedy, math	1700	x12006
1368C	Even Picture constructive algorithms	1500	x13521
1368B	Codeforces Subsequences brute force, constructive algorithms, greedy, math, strings	1500	x19977
1368A	C+= brute force, greedy, implementation, math	800	x40256
1367F2	Flying Sort (Hard Version) binary search, data structures, dp, greedy, sortings, two pointers	2400	x1693
1367F1	Flying Sort (Easy Version) dp, greedy, two pointers	2100	x3321
1367E	Necklace Assembly brute force, dfs and similar, dp, graphs, greedy, number theory	1900	x5505
1367D	Task On The Board constructive algorithms, greedy, implementation, sortings	1800	x8395
1367C	Social Distance constructive algorithms, greedy, math	1300	x23742
1367B	Even Array greedy, math	800	x54852
1367A	Short Substrings implementation, strings	800	x58560
1366G	Construct the String data structures, dp, strings	2700	x557
1366F	Jog Around The Graph binary search, dp, geometry, graphs	2700	x824
1366E	Two Arrays binary search, brute force, combinatorics, constructive algorithms, dp, two pointers	2100	x4317
1366D	Two Divisors constructive algorithms, math, number theory	2000	x10751
1366C	Palindromic Paths greedy, math	1500	x13644
1366B	Shuffle math, two pointers	1300	x21518
1366A	Shovels and Swords binary search, greedy, math	1100	x30525
1365G	Secure Password bitmasks, combinatorics, constructive algorithms, interactive, math	2800	x1180
1365F	Swaps Again constructive algorithms, implementation, sortings	2100	x4489
1365E	Maximum Subsequence Value brute force, constructive algorithms	1900	x7914
1365D	Solve The Maze constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, shortest paths	1700	x17737
1365C	Rotation Matching constructive algorithms, data structures, greedy, implementation	1400	x23365
1365B	Trouble Sort constructive algorithms, implementation	1300	x27163
1365A	Matrix Game games, greedy, implementation	1100	x24238
1364E	X-OR bitmasks, constructive algorithms, divide and conquer, interactive, probabilities	2700	x1447
1364D	Ehab's Last Corollary constructive algorithms, dfs and similar, graphs, greedy, implementation, trees	2100	x4465
1364C	Ehab and Prefix MEXs brute force, constructive algorithms, greedy	1600	x13292
1364B	Most socially-distanced subsequence greedy, two pointers	1300	x20299
1364A	XXXXX brute force, data structures, number theory, two pointers	1200	x28567
1363F	Rotating Substrings dp, strings	2600	x1558
1363E	Tree Shuffling dfs and similar, dp, greedy, trees	2000	x6893
1363D	Guess The Maximums binary search, implementation, interactive, math	2100	x4107
1363C	Game On Leaves games, trees	1600	x19050
1363B	Subsequence Hate implementation, strings	1400	x23876
1363A	Odd Selection brute force, implementation, math	1200	x36489
1362C	Johnny and Another Rating Drop bitmasks, greedy, math	1400	x18750
1362B	Johnny and His Hobbies bitmasks, brute force	1200	x19483
1362A	Johnny and Ancient Computer implementation	1000	x24792
1361F	Johnny and New Toy data structures, implementation, math	3300	x155
1361E	James and the Chase dfs and similar, graphs, probabilities, trees	3000	x705
1361D	Johnny and James greedy, implementation, math, trees	2900	x323
1361C	Johnny and Megan's Necklace binary search, bitmasks, constructive algorithms, dfs and similar, dsu, graphs	2500	x1655
1361B	Johnny and Grandmaster greedy, implementation, math, sortings	1900	x3710
1361A	Johnny and Contribution constructive algorithms, graphs, greedy, sortings	1700	x8477
1360H	Binary Median binary search, bitmasks, brute force, constructive algorithms	2100	x4623
1360G	A/B Matrix constructive algorithms, greedy, math	1900	x7869
1360F	Spy-string bitmasks, brute force, constructive algorithms, dp, hashing, strings	1700	x12564
1360E	Polygon dp, graphs, implementation, shortest paths	1300	x25750
1360D	Buying Shovels math, number theory	1300	x34041
1360C	Similar Pairs constructive algorithms, graph matchings, greedy, sortings	1100	x33233
1360B	Honest Coach greedy, sortings	800	x48723
1360A	Minimal Square greedy, math	800	x51692
1359F	RC Kaboom Show binary search, brute force, data structures, geometry, math	2900	x546
1359E	Modular Stability combinatorics, math, number theory	2000	x6189
1359D	Yet Another Yet Another Task data structures, dp, implementation, two pointers	2000	x9617
1359C	Mixing Water binary search, math	1700	x13994
1359B	New Theatre Square brute force, dp, greedy, implementation, two pointers	1000	x27997
1359A	Berland Poker brute force, greedy, math	1000	x29912
1358F	Tasty Cookie binary search, constructive algorithms, greedy, implementation	2700	x464
1358E	Are You Fired? constructive algorithms, data structures, greedy, implementation	2400	x2347
1358D	The Best Vacation binary search, brute force, greedy, implementation, two pointers	1900	x8273
1358C	Celex Update math	1600	x17526
1358B	Maria Breaks the Self-isolation greedy, sortings	1000	x25060
1358A	Park Lighting greedy, math	800	x39940
1357E2	Root of quantum Fourier transform *special problem		x51
1357E1	Power of quantum Fourier transform *special problem		x193
1357D5	Quantum Classification - Dataset 7 *special problem		x82
1357D4	Quantum Classification - Dataset 6 *special problem		x85
1357D3	Quantum Classification - Dataset 5 *special problem		x105