Problemset - Codeforces

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Codeforces Round #744 (Div. 3)
6 days

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Difficulty: —

math

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Problems

#	Name
1574E	Coloring combinatorics, constructive algorithms, implementation, math	2500	x348
1574B	Combinatorics Homework combinatorics, greedy, math	1100	x9736
1573B	Swaps greedy, math, sortings	1400	x6377
1569C	Jury Meeting combinatorics, math	1500	x7064
1567E	Non-Decreasing Dilemma data structures, divide and conquer, math	2200	x2223
1567D	Expression Evaluation Error constructive algorithms, greedy, implementation, math	2000	x3206
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x7911
1566H	Xor-quiz constructive algorithms, dp, interactive, math, number theory	3200	x33
1566A	Median Maximization binary search, greedy, math	800	x15120
1562F	Tubular Bells interactive, math, number theory, probabilities	2900	x189
1562D2	Two Hundred Twenty One (hard version) data structures, math	2200	x1556
1562D1	Two Hundred Twenty One (easy version) data structures, dp, math	1700	x4491
1562C	Rings constructive algorithms, math	1500	x8663
1562B	Scenes From a Memory brute force, constructive algorithms, implementation, math, number theory	1000	x14100
1562A	The Miracle and the Sleeper greedy, math	800	x19718
1561D1	Up the Strip (simplified version) brute force, data structures, dp, math, number theory	1700	x3602
1560D	Make a Power of Two greedy, math, strings	1300	x11549
1560C	Infinity Table implementation, math	800	x19781
1560B	Who's Opposite? math	800	x23369
1559E	Mocha and Stars combinatorics, dp, fft, math, number theory	2200	x1588
1559A	Mocha and Math bitmasks, constructive algorithms, math	900	x17233
1558B	Up the Strip brute force, dp, math, number theory, two pointers	1900	x3058
1558A	Charmed by the Game brute force, math	1300	x8400
1557C	Moamen and XOR bitmasks, combinatorics, dp, math, matrices	1700	x5979
1557A	Ezzat and Two Subsequences brute force, math, sortings	800	x21143
1556H	DIY Tree graphs, greedy, math, probabilities	3300	x106
1556F	Sports Betting bitmasks, combinatorics, dp, graphs, math, probabilities	2500	x752
1556D	Take a Guess bitmasks, constructive algorithms, interactive, math	1800	x4285
1556A	A Variety of Operations math	800	x14992
1555A	PizzaForces brute force, math	900	x18495
1554E	You dfs and similar, dp, math, number theory	2600	x740
1554B	Cobb bitmasks, brute force, greedy, math	1700	x8889
1553I	Stairs combinatorics, divide and conquer, dp, fft, math	3400	x91
1553G	Common Divisor Graph brute force, constructive algorithms, dsu, graphs, hashing, math, number theory	2700	x649
1553F	Pairwise Modulo data structures, math	2300	x1442
1553E	Permutation Shift brute force, combinatorics, constructive algorithms, dfs and similar, dsu, graphs, math	2100	x2436
1553A	Digits Sum math, number theory	800	x20229
1552I	Organizing a Music Festival dfs and similar, math	3400	x81
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x4648
1551D2	Domino (hard version) constructive algorithms, implementation, math	2100	x1879
1551D1	Domino (easy version) constructive algorithms, math	1700	x4673
1551A	Polycarp and Coins greedy, math	800	x27590
1550D	Excellent Arrays binary search, combinatorics, constructive algorithms, implementation, math, sortings, two pointers	2300	x1320
1550B	Maximum Cost Deletion greedy, math	1000	x17595
1550A	Find The Array greedy, math	800	x21268
1549A	Gregor and Cryptography math, number theory	800	x21519
1548E	Gregor and the Two Painters data structures, divide and conquer, graphs, greedy, math	3400	x101
1548D2	Gregor and the Odd Cows (Hard) brute force, geometry, math, number theory	3300	x158
1548D1	Gregor and the Odd Cows (Easy) bitmasks, geometry, math, number theory	2300	x1091
1548C	The Three Little Pigs combinatorics, dp, fft, math	2500	x1202
1548B	Integers Have Friends binary search, data structures, divide and conquer, math, number theory, two pointers	1800	x6036
1547A	Shortest Path with Obstacle implementation, math	800	x22470
1546B	AquaMoon and Stolen String interactive, math	1200	x9900
1545D	AquaMoon and Wrong Coordinate constructive algorithms, interactive, math	3000	x264
1545B	AquaMoon and Chess combinatorics, math	1900	x3855
1543E	The Final Pursuit bitmasks, constructive algorithms, divide and conquer, graphs, greedy, math	2700	x287
1543D2	RPD and Rap Sheet (Hard Version) brute force, constructive algorithms, interactive, math	2200	x1543
1543D1	RPD and Rap Sheet (Easy Version) bitmasks, constructive algorithms, interactive, math	1700	x6012
1543C	Need for Pink Slips bitmasks, brute force, dfs and similar, implementation, math, probabilities	1900	x4198
1543B	Customising the Track combinatorics, greedy, math	900	x17127
1543A	Exciting Bets greedy, math, number theory	900	x18343
1542E2	Abnormal Permutation Pairs (hard version) combinatorics, dp, fft, math	2700	x469
1542E1	Abnormal Permutation Pairs (easy version) combinatorics, dp, fft, math	2400	x782
1542D	Priority Queue combinatorics, dp, implementation, math, ternary search	2200	x1936
1542C	Strange Function math, number theory	1600	x8605
1542B	Plus and Multiply constructive algorithms, math, number theory	1500	x13391
1542A	Odd Set math	800	x24509
1541B	Pleasant Pairs brute force, implementation, math, number theory	1200	x15993
1540E	Tasty Dishes math, matrices	3500	x28
1540C2	Converging Array (Hard Version) dp, math	2900	x249
1540C1	Converging Array (Easy Version) dp, math	2700	x391
1540B	Tree Array brute force, combinatorics, dp, graphs, math, probabilities, trees	2300	x1574
1539A	Contest Start combinatorics, geometry, greedy, math	1000	x14427
1538G	Gift Set binary search, greedy, math, ternary search	2100	x3244
1538F	Interesting Function binary search, dp, math, number theory	1500	x11486
1538D	Another Problem About Dividing Numbers constructive algorithms, math, number theory	1700	x8887
1538C	Number of Pairs binary search, data structures, math, two pointers	1300	x16202
1538B	Friends and Candies greedy, math	800	x23682
1537F	Figure Fixing constructive algorithms, dfs and similar, dsu, graphs, greedy, math	2200	x1708
1537D	Deleting Divisors games, math, number theory	1700	x8221
1537C	Challenging Cliffs constructive algorithms, greedy, implementation, math	1200	x15866
1537B	Bad Boy constructive algorithms, greedy, math	900	x19302
1537A	Arithmetic Array greedy, math	800	x23546
1536F	Omkar and Akmar chinese remainder theorem, combinatorics, constructive algorithms, fft, games, geometry, math, meet-in-the-middle, string suffix structures	2600	x614
1536E	Omkar and Forest combinatorics, graphs, math, shortest paths	2300	x1784
1535B	Array Reodering brute force, greedy, math, number theory, sortings	900	x20423
1534C	Little Alawn's Puzzle combinatorics, dp, dsu, graphs, math	1300	x8858
1534B	Histogram Ugliness greedy, implementation, math	1100	x10141
1533A	Travel to Bertown *special problem, implementation, math		x912
1532B	Frog Jumping *special problem, math		x787
1530F	Bingo bitmasks, combinatorics, dp, math, probabilities	2600	x435
1530D	Secret Santa constructive algorithms, flows, graphs, greedy, math	1600	x6394
1530A	Binary Decimal greedy, math	800	x17013
1529B	Sifid and Strange Subsequences greedy, math, sortings	1100	x16282
1529A	Eshag Loves Big Arrays constructive algorithms, greedy, math	800	x23521
1528F	AmShZ Farm combinatorics, fft, math	3300	x124
1528B	Kavi on Pairing Duty combinatorics, dp, math	1700	x6311
1527D	MEX Tree combinatorics, dfs and similar, implementation, math, trees	2400	x1234
1527C	Sequence Pair Weight hashing, implementation, math	1600	x9246
1526E	Oolimry and Suffix Array combinatorics, constructive algorithms, math	2400	x717

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