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
333E	Summer Earnings binary search, bitmasks, brute force, geometry, sortings	2500	x1066
1284E	New Year and Castle Construction combinatorics, geometry, math, sortings	2500	x1094
1513F	Swapping Problem brute force, constructive algorithms, data structures, sortings	2500	x1193
1842F	Tenzing and Tree dfs and similar, greedy, shortest paths, sortings, trees	2500	x1234
804D	Expected diameter of a tree binary search, brute force, dfs and similar, dp, sortings, trees	2500	x1256
1687C	Sanae and Giant Robot binary search, brute force, data structures, dsu, greedy, sortings	2500	x1335
23C	Oranges and Apples constructive algorithms, sortings	2500	x1354
1381C	Mastermind constructive algorithms, graph matchings, greedy, implementation, sortings, two pointers	2500	x1388
1452E	Two Editorials brute force, dp, greedy, sortings, two pointers	2500	x1481
1209E2	Rotate Columns (hard version) bitmasks, dp, greedy, sortings	2500	x1845
1375E	Inversion SwapSort constructive algorithms, greedy, sortings	2500	x2764
64I	Sort the Table *special problem, sortings	2400	x84
350D	Looking for Owls binary search, data structures, geometry, hashing, sortings	2400	x253
1403A	The Potion of Great Power *special problem, 2-sat, binary search, data structures, graphs, interactive, sortings, two pointers	2400	x283
198E	Gripping Story binary search, data structures, sortings	2400	x400
542A	Place Your Ad Here data structures, sortings	2400	x520
883J	Renovation constructive algorithms, greedy, sortings	2400	x556
160E	Buses and People binary search, data structures, sortings	2400	x575
665F	Four Divisors data structures, dp, math, number theory, sortings, two pointers	2400	x576
1080F	Katya and Segments Sets data structures, interactive, sortings	2400	x669
639D	Bear and Contribution data structures, greedy, sortings, two pointers	2400	x776
611E	New Year and Three Musketeers data structures, greedy, sortings	2400	x853
1129C	Morse Code binary search, data structures, dp, hashing, sortings, string suffix structures, strings	2400	x896
1221F	Choose a Square binary search, data structures, sortings	2400	x973
1091E	New Year and the Acquaintance Estimation binary search, data structures, graphs, greedy, implementation, math, sortings	2400	x974
1605E	Array Equalizer binary search, greedy, implementation, math, number theory, sortings, two pointers	2400	x995
1936C	Pokémon Arena data structures, graphs, greedy, implementation, shortest paths, sortings	2400	x1043
524E	Rooks and Rectangles data structures, sortings	2400	x1151
1764E	Doremy's Number Line dp, greedy, sortings	2400	x1173
1005E2	Median on Segments (General Case Edition) sortings	2400	x1205
1042F	Leaf Sets data structures, dfs and similar, dsu, graphs, greedy, sortings, trees	2400	x1234
1374F	Cyclic Shifts Sorting brute force, constructive algorithms, implementation, sortings	2400	x1254
1886E	I Wanna be the Team Leader bitmasks, constructive algorithms, dp, greedy, math, sortings, two pointers	2400	x1319
1707C	DFS Trees dfs and similar, dsu, graphs, greedy, sortings, trees	2400	x1380
1615E	Purple Crayon data structures, dfs and similar, games, graphs, greedy, math, sortings, trees	2400	x1394
1606D	Red-Blue Matrix brute force, constructive algorithms, implementation, sortings	2400	x1398
1463E	Plan of Lectures constructive algorithms, dfs and similar, dsu, graphs, implementation, sortings, trees	2400	x1436
1367F2	Flying Sort (Hard Version) binary search, data structures, dp, greedy, sortings, two pointers	2400	x1439
1633E	Spanning Tree Queries binary search, data structures, dfs and similar, dsu, graphs, greedy, math, sortings, trees	2400	x1454
1826E	Walk the Runway bitmasks, brute force, data structures, dp, graphs, implementation, sortings	2400	x1492
1830C	Hyperregular Bracket Strings combinatorics, greedy, hashing, math, number theory, sortings	2400	x1505
1779E	Anya's Simultaneous Exhibition constructive algorithms, graphs, greedy, interactive, sortings	2400	x1684
798D	Mike and distribution constructive algorithms, sortings	2400	x1835
1485F	Copy or Prefix Sum combinatorics, data structures, dp, sortings	2400	x1860
1408E	Avoid Rainbow Cycles data structures, dsu, graphs, greedy, sortings, trees	2400	x1873
12D	Ball data structures, sortings	2400	x1944
1369E	DeadLee data structures, dfs and similar, greedy, implementation, sortings	2400	x2013
1401E	Divide Square data structures, geometry, implementation, sortings	2400	x2150
1187D	Subarray Sorting data structures, sortings	2400	x2446
246E	Blood Cousins Return binary search, data structures, dfs and similar, dp, sortings	2400	x2945
64H	Table Bowling *special problem, sortings	2300	x109
130I	Array sorting *special problem, sortings	2300	x164
62C	Inquisition geometry, implementation, sortings	2300	x247
203E	Transportation greedy, sortings, two pointers	2300	x276
101D	Castle dp, greedy, probabilities, sortings, trees	2300	x671
596D	Wilbur and Trees dp, math, probabilities, sortings	2300	x672
949D	Curfew binary search, brute force, greedy, sortings	2300	x811
87D	Beautiful Road dfs and similar, dp, dsu, graphs, implementation, sortings, trees	2300	x844
1379D	New Passenger Trams binary search, brute force, data structures, sortings, two pointers	2300	x1056
558D	Guess Your Way Out! II data structures, implementation, sortings	2300	x1103
830C	Bamboo Partition brute force, data structures, implementation, math, number theory, sortings, two pointers	2300	x1180
793C	Mice problem geometry, implementation, math, sortings	2300	x1230
1864F	Exotic Queries data structures, implementation, sortings	2300	x1306
1780F	Three Chairs bitmasks, brute force, combinatorics, data structures, dp, number theory, sortings	2300	x1365
1513E	Cost Equilibrium combinatorics, constructive algorithms, math, sortings	2300	x1408
1167F	Scalar Queries combinatorics, data structures, math, sortings	2300	x1428
1895E	Infinite Card Game binary search, brute force, data structures, dfs and similar, dp, dsu, games, graphs, greedy, sortings, two pointers	2300	x1446
1197E	Culture Code binary search, combinatorics, data structures, dp, shortest paths, sortings	2300	x1449
1399F	Yet Another Segments Subset data structures, dp, graphs, sortings	2300	x1552
1698E	PermutationForces II brute force, combinatorics, greedy, sortings, trees, two pointers	2300	x1566
1148E	Earth Wind and Fire constructive algorithms, greedy, math, sortings, two pointers	2300	x1654
1285E	Delete a Segment brute force, constructive algorithms, data structures, dp, graphs, sortings, trees, two pointers	2300	x1659
1621E	New School binary search, data structures, dp, greedy, implementation, sortings	2300	x1710
995C	Leaving the Bar brute force, data structures, geometry, greedy, math, sortings	2300	x1724
1691E	Number of Groups data structures, dfs and similar, dsu, graphs, greedy, sortings	2300	x1738
1552E	Colors and Intervals constructive algorithms, data structures, greedy, sortings	2300	x1769
1550D	Excellent Arrays binary search, combinatorics, constructive algorithms, implementation, math, sortings, two pointers	2300	x1779
1601C	Optimal Insertion data structures, divide and conquer, dp, greedy, sortings	2300	x1911
1625D	Binary Spiders bitmasks, data structures, implementation, math, sortings, trees	2300	x1963
1476E	Pattern Matching bitmasks, data structures, dfs and similar, graphs, hashing, sortings, strings	2300	x2238
1371E2	Asterism (Hard Version) binary search, combinatorics, dp, math, number theory, sortings	2300	x2291
160D	Edges in MST dfs and similar, dsu, graphs, sortings	2300	x2347
1494D	Dogeforces constructive algorithms, data structures, dfs and similar, divide and conquer, dsu, greedy, sortings, trees	2300	x2486
1422D	Returning Home graphs, shortest paths, sortings	2300	x2583
154C	Double Profiles graphs, hashing, sortings	2300	x2665
1316E	Team Building bitmasks, dp, greedy, sortings	2300	x3403
598C	Nearest vectors geometry, sortings	2300	x3937
915E	Physical Education Lessons data structures, implementation, sortings	2300	x3981
713C	Sonya and Problem Wihtout a Legend dp, sortings	2300	x4746
558E	A Simple Task data structures, sortings, strings	2300	x5555
105C	Item World brute force, implementation, sortings	2200	x268
178F2	Representative Sampling dp, sortings, strings	2200	x311
47E	Cannon data structures, geometry, sortings	2200	x351
1424M	Ancient Language graphs, sortings	2200	x520
253E	Printer binary search, data structures, implementation, sortings	2200	x520
85C	Petya and Tree binary search, dfs and similar, probabilities, sortings, trees	2200	x521
1184B2	The Doctor Meets Vader (Medium) flows, graph matchings, graphs, shortest paths, sortings	2200	x537
70C	Lucky Tickets binary search, data structures, sortings, two pointers	2200	x561
196C	Paint Tree constructive algorithms, divide and conquer, geometry, sortings, trees	2200	x738
138C	Mushroom Gnomes - 2 binary search, data structures, probabilities, sortings	2200	x844