Problemset - Codeforces

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Codeforces Round 972 (Div. 2)
38:04:54
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Problems

#	Name
1579E1	Permutation Minimization by Deque constructive algorithms, greedy, math	1000	x21503
1579A	Casimir's String Solitaire math, strings	800	x38673
1578G	Game of Chance math, probabilities	3500	x38
1578E	Easy Scheduling implementation, math	1200	x3807
1575K	Knitting Batik implementation, math	2200	x692
1575G	GCD Festival math, number theory	2200	x675
1575F	Finding Expected Value math	2900	x119
1574E	Coloring combinatorics, constructive algorithms, implementation, math	2500	x902
1574B	Combinatorics Homework combinatorics, greedy, math	1100	x17264
1573B	Swaps greedy, math, sortings	1400	x14495
1571D	Sweepstake *special problem, brute force, constructive algorithms, implementation, math	1800	x329
1571B	Epic Novel *special problem, math	1300	x708
1569C	Jury Meeting combinatorics, math	1500	x11974
1567E	Non-Decreasing Dilemma data structures, divide and conquer, math	2200	x3624
1567D	Expression Evaluation Error constructive algorithms, greedy, implementation, math	2000	x4489
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x12138
1566H	Xor-quiz constructive algorithms, dp, interactive, math, number theory	3200	x129
1566A	Median Maximization binary search, greedy, math	800	x23179
1562F	Tubular Bells interactive, math, number theory, probabilities	2900	x401
1562D2	Two Hundred Twenty One (hard version) data structures, math	2200	x2114
1562D1	Two Hundred Twenty One (easy version) data structures, dp, math	1700	x6302
1562C	Rings constructive algorithms, math	1500	x13202
1562B	Scenes From a Memory brute force, constructive algorithms, implementation, math, number theory	1000	x19521
1562A	The Miracle and the Sleeper greedy, math	800	x25485
1561D1	Up the Strip (simplified version) brute force, data structures, dp, math, number theory	1700	x5588
1560D	Make a Power of Two greedy, math, strings	1300	x18133
1560C	Infinity Table implementation, math	800	x26537
1560B	Who's Opposite? math	800	x35471
1559E	Mocha and Stars combinatorics, dp, fft, math, number theory	2200	x2294
1559A	Mocha and Math bitmasks, constructive algorithms, math	900	x31009
1558B	Up the Strip brute force, dp, math, number theory, two pointers	1900	x4780
1558A	Charmed by the Game brute force, math	1300	x11051
1557C	Moamen and XOR bitmasks, combinatorics, dp, math, matrices	1700	x8565
1557A	Ezzat and Two Subsequences brute force, math, sortings	800	x27866
1556H	DIY Tree graphs, greedy, math, probabilities	3300	x364
1556F	Sports Betting bitmasks, combinatorics, dp, graphs, math, probabilities	2500	x1220
1556D	Take a Guess bitmasks, constructive algorithms, interactive, math	1800	x6856
1556A	A Variety of Operations math	800	x18049
1555A	PizzaForces brute force, math	900	x27966
1554E	You dfs and similar, dp, math, number theory	2600	x1213
1554B	Cobb bitmasks, brute force, greedy, math	1700	x12728
1553I	Stairs combinatorics, divide and conquer, dp, fft, math	3400	x203
1553G	Common Divisor Graph brute force, constructive algorithms, dsu, graphs, hashing, math, number theory	2700	x1019
1553F	Pairwise Modulo data structures, math	2300	x2222
1553E	Permutation Shift brute force, combinatorics, constructive algorithms, dfs and similar, dsu, graphs, math	2100	x3313
1553A	Digits Sum math, number theory	800	x30865
1552I	Organizing a Music Festival dfs and similar, math	3400	x128
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x6976
1551D2	Domino (hard version) constructive algorithms, implementation, math	2100	x2743
1551D1	Domino (easy version) constructive algorithms, math	1700	x7042
1551A	Polycarp and Coins greedy, math	800	x50468
1550D	Excellent Arrays binary search, combinatorics, constructive algorithms, implementation, math, sortings, two pointers	2300	x1831
1550B	Maximum Cost Deletion greedy, math	1000	x26314
1550A	Find The Array greedy, math	800	x28046
1549A	Gregor and Cryptography math, number theory	800	x32282
1548E	Gregor and the Two Painters data structures, divide and conquer, graphs, greedy, math	3400	x448
1548D2	Gregor and the Odd Cows (Hard) brute force, geometry, math, number theory	3300	x240
1548D1	Gregor and the Odd Cows (Easy) bitmasks, geometry, math, number theory	2300	x1451
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	x9736
1547A	Shortest Path with Obstacle implementation, math	800	x30355
1546B	AquaMoon and Stolen String interactive, math	1200	x13057
1545D	AquaMoon and Wrong Coordinate constructive algorithms, interactive, math	3000	x478
1545B	AquaMoon and Chess combinatorics, math	1900	x5900
1543E	The Final Pursuit bitmasks, constructive algorithms, divide and conquer, graphs, greedy, math	2700	x408
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	x7577
1543C	Need for Pink Slips bitmasks, brute force, dfs and similar, implementation, math, probabilities	1900	x5276
1543B	Customising the Track combinatorics, greedy, math	900	x23038
1543A	Exciting Bets greedy, math, number theory	900	x27979
1542E2	Abnormal Permutation Pairs (hard version) combinatorics, dp, fft, math	2700	x846
1542E1	Abnormal Permutation Pairs (easy version) combinatorics, dp, fft, math	2400	x1228
1542D	Priority Queue combinatorics, dp, implementation, math, ternary search	2200	x2603
1542C	Strange Function math, number theory	1600	x14104
1542B	Plus and Multiply constructive algorithms, math, number theory	1500	x22945
1542A	Odd Set math	800	x44405
1541B	Pleasant Pairs brute force, implementation, math, number theory	1200	x28206
1540E	Tasty Dishes math, matrices	3500	x104
1540C2	Converging Array (Hard Version) dp, math	2900	x454
1540C1	Converging Array (Easy Version) dp, math	2700	x615
1540B	Tree Array brute force, combinatorics, dp, graphs, math, probabilities, trees	2300	x2571
1539A	Contest Start combinatorics, geometry, greedy, math	1000	x20005
1538G	Gift Set binary search, greedy, math, ternary search	2100	x4523
1538F	Interesting Function binary search, dp, math, number theory	1500	x19131
1538D	Another Problem About Dividing Numbers constructive algorithms, math, number theory	1700	x13539
1538C	Number of Pairs binary search, data structures, math, two pointers	1300	x28263
1538B	Friends and Candies greedy, math	800	x31591
1537F	Figure Fixing constructive algorithms, dfs and similar, dsu, graphs, greedy, math	2200	x2456
1537D	Deleting Divisors games, math, number theory	1700	x12318
1537C	Challenging Cliffs constructive algorithms, greedy, implementation, math	1200	x27418
1537B	Bad Boy constructive algorithms, greedy, math	900	x29644
1537A	Arithmetic Array greedy, math	800	x37023
1536F	Omkar and Akmar chinese remainder theorem, combinatorics, constructive algorithms, fft, games, geometry, math, meet-in-the-middle, string suffix structures	2600	x940
1536E	Omkar and Forest combinatorics, graphs, math, shortest paths	2300	x2390
1535B	Array Reodering brute force, greedy, math, number theory, sortings	900	x30388
1534C	Little Alawn's Puzzle combinatorics, dp, dsu, graphs, math	1300	x12778
1534B	Histogram Ugliness greedy, implementation, math	1100	x12491
1533A	Travel to Bertown *special problem, implementation, math		x1074
1532B	Frog Jumping *special problem, math		x823
1530F	Bingo bitmasks, combinatorics, dp, math, probabilities	2600	x777