Problemset - Codeforces

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Codeforces Round 974 (Div. 3)
02:54:08
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Problems

#	Name
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x6989
1552C	Maximize the Intersections combinatorics, constructive algorithms, geometry, greedy, sortings	1800	x5899
1552B	Running for Gold combinatorics, graphs, greedy, sortings	1500	x15381
1552A	Subsequence Permutation sortings, strings	800	x23796
1551F	Equidistant Vertices brute force, combinatorics, dfs and similar, dp, trees	2200	x1832
1551E	Fixed Points binary search, brute force, dp	2000	x3901
1551D2	Domino (hard version) constructive algorithms, implementation, math	2100	x2746
1551D1	Domino (easy version) constructive algorithms, math	1700	x7048
1551C	Interesting Story greedy, sortings, strings	1500	x13264
1551B2	Wonderful Coloring - 2 binary search, constructive algorithms, data structures, greedy	1400	x15470
1551B1	Wonderful Coloring - 1 greedy, strings	800	x29164
1551A	Polycarp and Coins greedy, math	800	x50616
1550F	Jumping Around binary search, data structures, divide and conquer, dp, dsu, graphs, shortest paths	2700	x669
1550E	Stringforces binary search, bitmasks, brute force, dp, strings, two pointers	2500	x1526
1550D	Excellent Arrays binary search, combinatorics, constructive algorithms, implementation, math, sortings, two pointers	2300	x1837
1550C	Manhattan Subarrays brute force, geometry, greedy, implementation	1700	x10151
1550B	Maximum Cost Deletion greedy, math	1000	x26345
1550A	Find The Array greedy, math	800	x28065
1549B	Gregor and the Pawn Game dfs and similar, dp, flows, graph matchings, graphs, greedy, implementation	800	x24313
1549A	Gregor and Cryptography math, number theory	800	x32342
1548E	Gregor and the Two Painters data structures, divide and conquer, graphs, greedy, math	3400	x450
1548D2	Gregor and the Odd Cows (Hard) brute force, geometry, math, number theory	3300	x242
1548D1	Gregor and the Odd Cows (Easy) bitmasks, geometry, math, number theory	2300	x1455
1548C	The Three Little Pigs combinatorics, dp, fft, math	2500	x1822
1548B	Integers Have Friends binary search, data structures, divide and conquer, math, number theory, two pointers	1800	x9767
1548A	Web of Lies brute force, graphs, greedy	1400	x16388
1547G	How Many Paths? dfs and similar, dp, graphs, trees	2100	x2986
1547F	Array Stabilization (GCD version) binary search, brute force, data structures, divide and conquer, number theory, two pointers	1900	x5799
1547E	Air Conditioners data structures, dp, implementation, shortest paths, sortings, two pointers	1500	x14396
1547D	Co-growing Sequence bitmasks, constructive algorithms, greedy	1300	x16643
1547C	Pair Programming greedy, two pointers	1100	x22593
1547B	Alphabetical Strings greedy, implementation, strings	800	x26364
1547A	Shortest Path with Obstacle implementation, math	800	x30386
1546B	AquaMoon and Stolen String interactive, math	1200	x13073
1546A	AquaMoon and Two Arrays brute force, greedy	800	x18192
1545F	AquaMoon and Potatoes brute force, data structures, dp	3500	x108
1545E2	AquaMoon and Time Stop (hard version) data structures, dp	3500	x86
1545E1	AquaMoon and Time Stop (easy version) data structures, dp	3500	x80
1545D	AquaMoon and Wrong Coordinate constructive algorithms, interactive, math	3000	x493
1545C	AquaMoon and Permutations 2-sat, brute force, combinatorics, constructive algorithms, graph matchings, graphs	2800	x604
1545B	AquaMoon and Chess combinatorics, math	1900	x5910
1545A	AquaMoon and Strange Sort sortings	1500	x13872
1543E	The Final Pursuit bitmasks, constructive algorithms, divide and conquer, graphs, greedy, math	2700	x409
1543D2	RPD and Rap Sheet (Hard Version) brute force, constructive algorithms, interactive, math	2200	x2010
1543D1	RPD and Rap Sheet (Easy Version) bitmasks, constructive algorithms, interactive, math	1700	x7586
1543C	Need for Pink Slips bitmasks, brute force, dfs and similar, implementation, math, probabilities	1900	x5280
1543B	Customising the Track combinatorics, greedy, math	900	x23054
1543A	Exciting Bets greedy, math, number theory	900	x28082
1542E2	Abnormal Permutation Pairs (hard version) combinatorics, dp, fft, math	2700	x847
1542E1	Abnormal Permutation Pairs (easy version) combinatorics, dp, fft, math	2400	x1233
1542D	Priority Queue combinatorics, dp, implementation, math, ternary search	2200	x2610
1542C	Strange Function math, number theory	1600	x14140
1542B	Plus and Multiply constructive algorithms, math, number theory	1500	x23000
1542A	Odd Set math	800	x44505
1541B	Pleasant Pairs brute force, implementation, math, number theory	1200	x28301
1541A	Pretty Permutations constructive algorithms, greedy, implementation	800	x29361
1540E	Tasty Dishes math, matrices	3500	x105
1540D	Inverse Inversions binary search, brute force, data structures	3200	x277
1540C2	Converging Array (Hard Version) dp, math	2900	x454
1540C1	Converging Array (Easy Version) dp, math	2700	x619
1540B	Tree Array brute force, combinatorics, dp, graphs, math, probabilities, trees	2300	x2590
1540A	Great Graphs constructive algorithms, graphs, greedy, shortest paths, sortings	1400	x13910
1539F	Strange Array data structures, greedy, sortings	2600	x862
1539E	Game with Cards binary search, constructive algorithms, data structures, dp, greedy, implementation	2500	x943
1539D	PriceFixed binary search, greedy, implementation, sortings, two pointers	1600	x11613
1539C	Stable Groups greedy, sortings	1200	x22749
1539B	Love Song dp, implementation, strings	800	x24385
1539A	Contest Start combinatorics, geometry, greedy, math	1000	x20026
1538G	Gift Set binary search, greedy, math, ternary search	2100	x4527
1538F	Interesting Function binary search, dp, math, number theory	1500	x19175
1538E	Funny Substrings data structures, hashing, implementation, matrices, strings	2100	x2885
1538D	Another Problem About Dividing Numbers constructive algorithms, math, number theory	1700	x13567
1538C	Number of Pairs binary search, data structures, math, two pointers	1300	x28334
1538B	Friends and Candies greedy, math	800	x31614
1538A	Stone Game brute force, dp, greedy	800	x36704
1537F	Figure Fixing constructive algorithms, dfs and similar, dsu, graphs, greedy, math	2200	x2463
1537E2	Erase and Extend (Hard Version) binary search, data structures, greedy, hashing, string suffix structures, strings, two pointers	2200	x5191
1537E1	Erase and Extend (Easy Version) binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers	1600	x12885
1537D	Deleting Divisors games, math, number theory	1700	x12340
1537C	Challenging Cliffs constructive algorithms, greedy, implementation, math	1200	x27480
1537B	Bad Boy constructive algorithms, greedy, math	900	x29757
1537A	Arithmetic Array greedy, math	800	x37085
1536F	Omkar and Akmar chinese remainder theorem, combinatorics, constructive algorithms, fft, games, geometry, math, meet-in-the-middle, string suffix structures	2600	x948
1536E	Omkar and Forest combinatorics, graphs, math, shortest paths	2300	x2398
1536D	Omkar and Medians data structures, greedy, implementation	2000	x4668
1536C	Diluc and Kaeya data structures, dp, hashing, number theory	1500	x14073
1536B	Prinzessin der Verurteilung brute force, constructive algorithms, strings	1200	x18682
1536A	Omkar and Bad Story brute force, constructive algorithms	800	x20181
1535F	String Distance binary search, brute force, data structures, hashing, implementation, strings	3000	x451
1535E	Gold Transfer binary search, data structures, dp, greedy, interactive, trees	2200	x2743
1535D	Playoff Tournament data structures, dfs and similar, dp, implementation, trees	1800	x7704
1535C	Unstable String binary search, dp, greedy, implementation, strings, two pointers	1400	x16444
1535B	Array Reodering brute force, greedy, math, number theory, sortings	900	x30442
1535A	Fair Playoff brute force, implementation	800	x49137
1534H	Lost Nodes constructive algorithms, dp, graphs, interactive, sortings, trees	3500	x149
1534G	A New Beginning data structures, dp, geometry, sortings	3300	x561
1534F2	Falling Sand (Hard Version) dfs and similar, dp, graphs, greedy	3000	x535
1534F1	Falling Sand (Easy Version) dfs and similar, graphs, greedy	2500	x1221
1534E	Lost Array graphs, greedy, interactive, shortest paths	2300	x1912
1534D	Lost Tree constructive algorithms, interactive, trees	1800	x6014