Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
45:26:23
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Before contest
Codeforces Round 941 (Div. 2)
45:26:23
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Problems

#	Name
995A	Tesla constructive algorithms, implementation	2100	x1499
370C	Mittens constructive algorithms, greedy, sortings	1800	x1499
1866G	Grouped Carriages binary search, data structures, dp, flows, greedy	2100	x1497
17E	Palisection strings	2900	x1497
538E	Demiurges Play Again dfs and similar, dp, math, trees	2200	x1496
1746F	Kazaee data structures, hashing, probabilities	2800	x1495
538F	A Heap of Heaps brute force, data structures, math, sortings	2200	x1495
1798E	Multitest Generator brute force, dp	2300	x1494
1826E	Walk the Runway bitmasks, brute force, data structures, dp, graphs, implementation, sortings	2400	x1493
1874C	Jellyfish and EVA dp, graphs, greedy, math, probabilities	2300	x1492
1849E	Max to the Right of Min binary search, data structures, divide and conquer, dp, dsu, two pointers	2300	x1491
845G	Shortest Path Problem? dfs and similar, graphs, math	2300	x1490
37C	Old Berland Language data structures, greedy, trees	1900	x1490
74B	Train dp, games, greedy	1500	x1487
1452E	Two Editorials brute force, dp, greedy, sortings, two pointers	2500	x1482
847K	Travel Cards greedy, implementation, sortings	1800	x1482
379D	New Year Letter bitmasks, brute force, dp	2000	x1482
1093E	Intersection of Permutations data structures	2400	x1481
521D	Shop greedy	2800	x1481
39F	Pacifist frogs implementation	1300	x1481
1497D	Genius bitmasks, dp, graphs, number theory	2500	x1480
638C	Road Improvement *special problem, dfs and similar, graphs, greedy, trees	1800	x1480
993C	Careful Maneuvering bitmasks, brute force, geometry	2100	x1478
140B	New Year Cards brute force, greedy, implementation	1800	x1476
1927G	Paint Charges data structures, dp, greedy, math	2300	x1475
1773A	Amazing Trick constructive algorithms, graph matchings, math, probabilities	1900	x1475
137D	Palindromes dp, strings	1900	x1475
549B	Looksery Party constructive algorithms, dfs and similar, graphs, greedy	2300	x1474
439E	Devu and Birthday Celebration combinatorics, dp, math	2100	x1474
1618G	Trader Problem data structures, dsu, greedy, sortings	2200	x1473
452D	Washer, Dryer, Folder greedy, implementation	1900	x1473
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1471
1505F	Math *special problem, math	2200	x1471
1032E	The Unbearable Lightness of Weights dp, math	2100	x1471
912E	Prime Gift binary search, dfs and similar, math, meet-in-the-middle, number theory, two pointers	2400	x1470
1401F	Reverse and Swap binary search, bitmasks, data structures	2400	x1469
858F	Wizard's Tour constructive algorithms, dfs and similar, graphs	2300	x1469
743E	Vladik and cards binary search, bitmasks, brute force, dp	2200	x1469
325B	Stadium and Games binary search, math	1800	x1469
958E1	Guard Duty (easy) brute force, geometry, greedy, math	1600	x1467
254C	Anagram greedy, strings	1800	x1467
1482F	Useful Edges graphs, shortest paths	2400	x1465
1242C	Sum Balance bitmasks, dfs and similar, dp, graphs	2400	x1465
1098B	Nice table brute force, constructive algorithms, greedy, math	2100	x1465
869E	The Untended Antiquity data structures, hashing	2400	x1465
291D	Parallel Programming *special problem, greedy	1600	x1465
1843F2	Omsk Metro (hard version) data structures, dfs and similar, divide and conquer, dp, math, trees	2300	x1464
750E	New Year and Old Subsequence data structures, divide and conquer, dp, matrices	2600	x1464
1743E	FTL binary search, dp	2400	x1463
1276C	Beautiful Rectangle brute force, combinatorics, constructive algorithms, data structures, greedy, math	2300	x1463
156D	Clues combinatorics, graphs	2500	x1463
396A	On Number of Decompositions into Multipliers combinatorics, math, number theory		x1460
1227F2	Wrong Answer on test 233 (Hard Version) combinatorics, math	2400	x1458
1137D	Cooperative Game constructive algorithms, interactive, number theory	2400	x1458
1659E	AND-MEX Walk bitmasks, brute force, constructive algorithms, dfs and similar, dsu, graphs	2200	x1456
1633E	Spanning Tree Queries binary search, data structures, dfs and similar, dsu, graphs, greedy, math, sortings, trees	2400	x1455
1444C	Team-Building data structures, dfs and similar, dsu, graphs	2500	x1454
1418G	Three Occurrences data structures, divide and conquer, hashing, two pointers	2500	x1453
314B	Sereja and Periods binary search, dfs and similar, strings	2000	x1453
234G	Practice constructive algorithms, divide and conquer, implementation	1600	x1451
89A	Robbery greedy	1800	x1451
1197E	Culture Code binary search, combinatorics, data structures, dp, shortest paths, sortings	2300	x1450
1895E	Infinite Card Game binary search, brute force, data structures, dfs and similar, dp, dsu, games, graphs, greedy, sortings, two pointers	2300	x1449
158E	Phone Talks *special problem, dp, sortings	1900	x1449
1738E	Balance Addicts combinatorics, dp, math, two pointers	2300	x1448
316E1	Summer Homework brute force, data structures	1500	x1447
1153E	Serval and Snake binary search, brute force, interactive	2200	x1446
1594E2	Rubik's Cube Coloring (hard version) brute force, dp, implementation, math, trees	2300	x1445
662B	Graph Coloring dfs and similar, graphs	2200	x1444
524B	Фото на память - 2 (round version) dp, greedy	1700	x1444
448E	Divisors brute force, dfs and similar, implementation, number theory	2200	x1444
1926F	Vlad and Avoiding X bitmasks, brute force, dfs and similar, dp, implementation	2200	x1443
1852C	Ina of the Mountain data structures, dp, greedy, math	2400	x1443
1531A	Зингер \| color *special problem, implementation		x1443
1848F	Vika and Wiki binary search, bitmasks, combinatorics, divide and conquer, dp, math	2400	x1442
1117E	Decypher the String bitmasks, chinese remainder theorem, constructive algorithms, interactive, math	2200	x1442
280A	Rectangle Puzzle geometry	2000	x1441
1367F2	Flying Sort (Hard Version) binary search, data structures, dp, greedy, sortings, two pointers	2400	x1440
748E	Santa Claus and Tangerines binary search, data structures, greedy, two pointers	2100	x1440
1550E	Stringforces binary search, bitmasks, brute force, dp, strings, two pointers	2500	x1438
1041F	Ray in the tube data structures, divide and conquer, dp, math	2500	x1438
926G	Large Bouquets	1500	x1438
723F	st-Spanning Tree dsu, graphs, greedy, implementation	2300	x1438
76A	Gift dsu, graphs, sortings, trees	2200	x1437
1463E	Plan of Lectures constructive algorithms, dfs and similar, dsu, graphs, implementation, sortings, trees	2400	x1436
809B	Glad to see you! binary search, interactive	2200	x1436
1145B	Kanban Numbers brute force		x1435
1227E	Arson In Berland Forest binary search, graphs, graphs, shortest paths	2200	x1434
1174F	Ehab and the Big Finale constructive algorithms, divide and conquer, graphs, implementation, interactive, trees	2400	x1434
610D	Vika and Segments constructive algorithms, data structures, geometry, two pointers	2300	x1433
1391E	Pairs of Pairs constructive algorithms, dfs and similar, graphs, greedy, trees	2600	x1429
190E	Counter Attack data structures, dsu, graphs, hashing, sortings	2100	x1429
1167F	Scalar Queries combinatorics, data structures, math, sortings	2300	x1428
717E	Paint it really, really dark gray dfs and similar	1900	x1427
1548D1	Gregor and the Odd Cows (Easy) bitmasks, geometry, math, number theory	2300	x1426
1455E	Four Points brute force, constructive algorithms, flows, geometry, greedy, implementation, math, ternary search	2400	x1425
1210D	Konrad and Company Evaluation graphs	2400	x1423
182E	Wooden Fence dp	1800	x1423
1216E2	Numerical Sequence (hard version) binary search, math	2200	x1422
1665E	MinimizOR bitmasks, brute force, data structures, divide and conquer, greedy, implementation, two pointers	2500	x1421