Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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Problems

#	Name
1389E	Calendar Ambiguity math, number theory	2200	x3106
1327D	Infinite Path brute force, dfs and similar, graphs, math, number theory	2200	x3021
1338C	Perfect Triples bitmasks, brute force, constructive algorithms, divide and conquer, math	2200	x2958
1305E	Kuroni and the Score Distribution constructive algorithms, greedy, implementation, math	2200	x2893
768D	Jon and Orbs dp, math, probabilities	2200	x2749
839D	Winter is here combinatorics, dp, math, number theory	2200	x2681
616E	Sum of Remainders implementation, math, number theory	2200	x2653
1154G	Minimum Possible LCM brute force, greedy, math, number theory	2200	x2613
1334E	Divisor Paths combinatorics, graphs, greedy, math, number theory	2200	x2587
1415E	New Game Plus! constructive algorithms, greedy, math	2200	x2567
1097D	Makoto and a Blackboard dp, math, number theory, probabilities	2200	x2557
1542D	Priority Queue combinatorics, dp, implementation, math, ternary search	2200	x2525
1848D	Vika and Bonuses binary search, brute force, math, ternary search	2200	x2504
1717E	Madoka and The Best University math, number theory	2200	x2456
1537F	Figure Fixing constructive algorithms, dfs and similar, dsu, graphs, greedy, math	2200	x2353
1526D	Kill Anton brute force, constructive algorithms, data structures, math, strings	2200	x2346
547A	Mike and Frog brute force, greedy, implementation, math	2200	x2310
1646E	Power Board brute force, dp, math, number theory	2200	x2289
1822G2	Magic Triples (Hard Version) brute force, data structures, math, number theory	2200	x2284
908D	New Year and Arbitrary Arrangement dp, math, probabilities	2200	x2240
1704E	Count Seconds brute force, constructive algorithms, dp, graphs, implementation, math	2200	x2211
1559E	Mocha and Stars combinatorics, dp, fft, math, number theory	2200	x2211
1840G1	In Search of Truth (Easy Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2200	x2210
1477C	Nezzar and Nice Beatmap constructive algorithms, geometry, greedy, math, sortings	2200	x2199
1398E	Two Types of Spells binary search, data structures, greedy, implementation, math, sortings	2200	x2170
402E	Strictly Positive Matrix graphs, math	2200	x2075
1562D2	Two Hundred Twenty One (hard version) data structures, math	2200	x2072
1461E	Water Level brute force, graphs, greedy, implementation, math	2200	x2059
1158B	The minimal unique substring constructive algorithms, math, strings	2200	x2055
1166D	Cute Sequences binary search, brute force, greedy, math	2200	x2016
486E	LIS of Sequence data structures, dp, greedy, hashing, math	2200	x2015
1946E	Girl Permutation combinatorics, dp, math, number theory	2200	x2002
1657E	Star MST combinatorics, dp, graph matchings, math	2200	x1984
1500B	Two chandeliers binary search, brute force, chinese remainder theorem, math, number theory	2200	x1983
1763D	Valid Bitonic Permutations combinatorics, dp, implementation, math, number theory	2200	x1951
1179C	Serge and Dining Room binary search, data structures, graph matchings, greedy, implementation, math, trees	2200	x1945
1543D2	RPD and Rap Sheet (Hard Version) brute force, constructive algorithms, interactive, math	2200	x1940
1795E	Explosions? binary search, data structures, dp, greedy, math	2200	x1903
678E	Another Sith Tournament bitmasks, dp, math, probabilities	2200	x1896
1841E	Fill the Matrix data structures, greedy, math	2200	x1870
603C	Lieges of Legendre games, math	2200	x1806
520E	Pluses everywhere combinatorics, dp, math, number theory	2200	x1791
1468H	K and Medians constructive algorithms, greedy, math	2200	x1702
1763E	Node Pairs dp, graphs, math, number theory	2200	x1684
979D	Kuro and GCD and XOR and SUM binary search, bitmasks, brute force, data structures, dp, dsu, greedy, math, number theory, strings, trees	2200	x1681
920G	List Of Integers binary search, bitmasks, brute force, combinatorics, math, number theory	2200	x1670
1909F1	Small Permutation Problem (Easy Version) brute force, combinatorics, dp, math	2200	x1615
712D	Memory and Scores combinatorics, dp, math	2200	x1611
1811G2	Vlad and the Nice Paths (hard version) binary search, combinatorics, data structures, dp, math, two pointers	2200	x1607
612E	Square Root of Permutation combinatorics, constructive algorithms, dfs and similar, graphs, math	2200	x1577
1954E	Chain Reaction binary search, data structures, dsu, greedy, implementation, math, number theory	2200	x1533
538E	Demiurges Play Again dfs and similar, dp, math, trees	2200	x1496
538F	A Heap of Heaps brute force, data structures, math, sortings	2200	x1493
1505F	Math *special problem, math	2200	x1471
1117E	Decypher the String bitmasks, chinese remainder theorem, constructive algorithms, interactive, math	2200	x1442
1216E2	Numerical Sequence (hard version) binary search, math	2200	x1422
346C	Number Transformation II greedy, math	2200	x1416
1155E	Guess the Root brute force, interactive, math	2200	x1389
1666I	Interactive Treasure Hunt brute force, constructive algorithms, geometry, interactive, math	2200	x1381
550E	Brackets in Implications constructive algorithms, greedy, implementation, math	2200	x1376
901B	GCD of Polynomials constructive algorithms, math	2200	x1373
815B	Karen and Test brute force, combinatorics, constructive algorithms, math	2200	x1361
1039C	Network Safety dfs and similar, dsu, graphs, math, sortings	2200	x1311
925C	Big Secret constructive algorithms, math	2200	x1282
1772G	Gaining Rating binary search, greedy, implementation, math, sortings, two pointers	2200	x1260
113C	Double Happiness brute force, math, number theory	2200	x1201
639C	Bear and Polynomials hashing, implementation, math	2200	x1187
906B	Seating of Students brute force, constructive algorithms, math	2200	x1121
954I	Yet Another String Matching Problem fft, math	2200	x958
773C	Prairie Partition binary search, constructive algorithms, greedy, math	2200	x937
518E	Arthur and Questions greedy, implementation, math, ternary search	2200	x905
255E	Furlo and Rublo and Game games, implementation, math	2200	x830
1912E	Evaluate It and Back Again constructive algorithms, implementation, math	2200	x762
366E	Dima and Magic Guitar brute force, implementation, math	2200	x742
509D	Restoring Numbers constructive algorithms, math	2200	x731
730D	Running Over The Bridges greedy, implementation, math	2200	x679
1575G	GCD Festival math, number theory	2200	x638
1045D	Interstellar battle math, probabilities, trees	2200	x627
150C	Smart Cheater data structures, math, probabilities	2200	x625
1575K	Knitting Batik implementation, math	2200	x619
115C	Plumber math	2200	x587
852F	Product transformation combinatorics, math, number theory	2200	x542
271E	Three Horses constructive algorithms, math, number theory	2200	x478
305D	Olya and Graph combinatorics, math	2200	x452
86B	Tetris revisited constructive algorithms, graph matchings, greedy, math	2200	x401
593C	Beautiful Function constructive algorithms, math	2200	x272
802E	Marmots (medium) math	2200	x237
438D	The Child and Sequence data structures, math	2300	x7806
1188B	Count Pairs math, matrices, number theory, two pointers	2300	x4206
1450C2	Errich-Tac-Toe (Hard Version) constructive algorithms, math	2300	x3501
718C	Sasha and Array data structures, math, matrices	2300	x3359
1628C	Grid Xor constructive algorithms, greedy, implementation, interactive, math	2300	x3071
1451E2	Bitwise Queries (Hard Version) bitmasks, constructive algorithms, interactive, math	2300	x2824
1342E	Placing Rooks combinatorics, fft, math	2300	x2802
547C	Mike and Foam bitmasks, combinatorics, dp, math, number theory	2300	x2700
785D	Anton and School - 2 combinatorics, dp, math, number theory	2300	x2639
1182E	Product Oriented Recurrence dp, math, matrices, number theory	2300	x2521
487C	Prefix Product Sequence constructive algorithms, math, number theory	2300	x2506
1228E	Another Filling the Grid combinatorics, dp, math	2300	x2485
1540B	Tree Array brute force, combinatorics, dp, graphs, math, probabilities, trees	2300	x2483