Problemset - Codeforces

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Educational Codeforces Round 175 (Rated for Div. 2)
13:57:45
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Problems

#	Name
1375B	Neighbor Grid constructive algorithms, greedy	1200	x17419
1375A	Sign Flipping constructive algorithms, math	1100	x18492
1374F	Cyclic Shifts Sorting brute force, constructive algorithms, implementation, sortings	2400	x1323
1374E2	Reading Books (hard version) data structures, greedy, implementation, sortings, ternary search, two pointers	2500	x957
1374E1	Reading Books (easy version) data structures, greedy, sortings	1600	x14272
1374D	Zero Remainder Array math, sortings, two pointers	1400	x25052
1374C	Move Brackets greedy, strings	1000	x50209
1374B	Multiply by 2, divide by 6 math	900	x54341
1374A	Required Remainder math	800	x56214
1373G	Pawns data structures, divide and conquer, greedy	2600	x830
1373F	Network Coverage binary search, constructive algorithms, data structures, greedy	2400	x1697
1373E	Sum of Digits brute force, constructive algorithms, dp, greedy	2200	x2789
1373D	Maximum Sum on Even Positions divide and conquer, dp, greedy, implementation	1600	x15979
1373C	Pluses and Minuses math	1300	x18583
1373B	01 Game games	900	x38750
1373A	Donut Shops greedy, implementation, math	1000	x27694
1372F	Omkar and Modes binary search, divide and conquer, interactive	2700	x461
1372E	Omkar and Last Floor dp, greedy, two pointers	2900	x1287
1372D	Omkar and Circle brute force, dp, games, greedy	2100	x5475
1372C	Omkar and Baseball constructive algorithms, math	1500	x18171
1372B	Omkar and Last Class of Math greedy, math, number theory	1300	x29541
1372A	Omkar and Completion constructive algorithms, implementation	800	x32267
1371F	Raging Thunder data structures, divide and conquer, implementation	2800	x630
1371E2	Asterism (Hard Version) binary search, combinatorics, dp, math, number theory, sortings	2300	x2385
1371E1	Asterism (Easy Version) binary search, brute force, combinatorics, math, number theory, sortings	1900	x5318
1371D	Grid-00100 constructive algorithms, greedy, implementation	1600	x13130
1371C	A Cookie for You greedy, implementation, math	1300	x20787
1371B	Magical Calendar math	1200	x19302
1371A	Magical Sticks math	800	x47374
1370F2	The Hidden Pair (Hard Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2700	x1532
1370F1	The Hidden Pair (Easy Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2400	x1656
1370E	Binary Subsequence Rotation binary search, constructive algorithms, data structures, greedy	2100	x4961
1370D	Odd-Even Subsequence binary search, dp, dsu, greedy, implementation	2000	x9942
1370C	Number Game games, math, number theory	1400	x25234
1370B	GCD Compression constructive algorithms, math, number theory	1100	x24016
1370A	Maximum GCD greedy, implementation, math, number theory	800	x55022
1369F	BareLee dfs and similar, dp, games	2700	x669
1369E	DeadLee data structures, dfs and similar, greedy, implementation, sortings	2400	x2302
1369D	TediousLee dp, graphs, greedy, math, trees	1900	x8785
1369C	RationalLee greedy, math, sortings, two pointers	1400	x19875
1369B	AccurateLee greedy, implementation, strings	1200	x24737
1369A	FashionabLee geometry, math	800	x37243
1368H2	Breadboard Capacity (hard version)	3500	x243
1368H1	Breadboard Capacity (easy version) dp, flows, greedy	3300	x378
1368G	Shifting Dominoes data structures, geometry, graphs, trees	3200	x618
1368F	Lamps on a Circle games, implementation, interactive, math	2600	x1067
1368E	Ski Accidents constructive algorithms, graphs, greedy	2500	x2261
1368D	AND, OR and square sum bitmasks, greedy, math	1700	x12163
1368C	Even Picture constructive algorithms	1500	x13582
1368B	Codeforces Subsequences brute force, constructive algorithms, greedy, math, strings	1500	x20162
1368A	C+= brute force, greedy, implementation, math	800	x41162
1367F2	Flying Sort (Hard Version) binary search, data structures, dp, greedy, sortings, two pointers	2400	x1713
1367F1	Flying Sort (Easy Version) dp, greedy, two pointers	2100	x3351
1367E	Necklace Assembly brute force, dfs and similar, dp, graphs, greedy, number theory	1900	x5553
1367D	Task On The Board constructive algorithms, greedy, implementation, sortings	1800	x8460
1367C	Social Distance constructive algorithms, greedy, math	1300	x23929
1367B	Even Array greedy, math	800	x56059
1367A	Short Substrings implementation, strings	800	x59631
1366G	Construct the String data structures, dp, strings	2700	x570
1366F	Jog Around The Graph binary search, dp, geometry, graphs	2700	x839
1366E	Two Arrays binary search, brute force, combinatorics, constructive algorithms, dp, two pointers	2100	x4349
1366D	Two Divisors constructive algorithms, math, number theory	2000	x10930
1366C	Palindromic Paths greedy, math	1500	x13718
1366B	Shuffle math, two pointers	1300	x22134
1366A	Shovels and Swords binary search, greedy, math	1100	x30940
1365G	Secure Password bitmasks, combinatorics, constructive algorithms, interactive, math	2800	x1205
1365F	Swaps Again constructive algorithms, implementation, sortings	2100	x4515
1365E	Maximum Subsequence Value brute force, constructive algorithms	1900	x7972
1365D	Solve The Maze constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, shortest paths	1700	x18231
1365C	Rotation Matching constructive algorithms, data structures, greedy, implementation	1400	x23594
1365B	Trouble Sort constructive algorithms, implementation	1300	x27437
1365A	Matrix Game games, greedy, implementation	1100	x24360
1364E	X-OR bitmasks, constructive algorithms, divide and conquer, interactive, probabilities	2700	x1458
1364D	Ehab's Last Corollary constructive algorithms, dfs and similar, graphs, greedy, implementation, trees	2100	x4510
1364C	Ehab and Prefix MEXs brute force, constructive algorithms, greedy	1600	x13433
1364B	Most socially-distanced subsequence greedy, two pointers	1300	x20909
1364A	XXXXX brute force, data structures, number theory, two pointers	1200	x28974
1363F	Rotating Substrings dp, strings	2600	x1599
1363E	Tree Shuffling dfs and similar, dp, greedy, trees	2000	x6938
1363D	Guess The Maximums binary search, implementation, interactive, math	2100	x4137
1363C	Game On Leaves games, trees	1600	x19328
1363B	Subsequence Hate implementation, strings	1400	x24179
1363A	Odd Selection brute force, implementation, math	1200	x37011
1362C	Johnny and Another Rating Drop bitmasks, greedy, math	1400	x19359
1362B	Johnny and His Hobbies bitmasks, brute force	1200	x19741
1362A	Johnny and Ancient Computer implementation	1000	x25640
1361F	Johnny and New Toy data structures, implementation, math	3300	x158
1361E	James and the Chase dfs and similar, graphs, probabilities, trees	3000	x738
1361D	Johnny and James greedy, implementation, math, trees	2900	x324
1361C	Johnny and Megan's Necklace binary search, bitmasks, constructive algorithms, dfs and similar, dsu, graphs	2500	x1676
1361B	Johnny and Grandmaster greedy, implementation, math, sortings	1900	x3722
1361A	Johnny and Contribution constructive algorithms, graphs, greedy, sortings	1700	x8514
1360H	Binary Median binary search, bitmasks, brute force, constructive algorithms	2100	x4655
1360G	A/B Matrix constructive algorithms, greedy, math	1900	x7931
1360F	Spy-string bitmasks, brute force, constructive algorithms, dp, hashing, strings	1700	x12685
1360E	Polygon dp, graphs, implementation, shortest paths	1300	x26041
1360D	Buying Shovels math, number theory	1300	x35055
1360C	Similar Pairs constructive algorithms, graph matchings, greedy, sortings	1100	x33611
1360B	Honest Coach greedy, sortings	800	x49343
1360A	Minimal Square greedy, math	800	x52711