Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
44:27:37
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Before contest
Codeforces Round 941 (Div. 2)
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Problems

#	Name
141C	Queue constructive algorithms, greedy, sortings	1800	x2364
140D	New Year Contest greedy, sortings	1800	x2193
724C	Ray Tracing greedy, hashing, implementation, math, number theory, sortings	1800	x2104
222C	Reducing Fractions implementation, math, number theory, sortings	1800	x2078
252B	Unsorting Array brute force, sortings	1800	x1678
83B	Doctor binary search, math, sortings	1800	x1615
370C	Mittens constructive algorithms, greedy, sortings	1800	x1500
847K	Travel Cards greedy, implementation, sortings	1800	x1482
1402A	Fancy Fence *special problem, data structures, dsu, implementation, math, sortings	1800	x1134
5C	Longest Regular Bracket Sequence constructive algorithms, data structures, dp, greedy, sortings, strings	1900	x12623
1375D	Replace by MEX brute force, constructive algorithms, sortings	1900	x8705
1242B	0-1 MST dfs and similar, dsu, graphs, sortings	1900	x6953
1475G	Strange Beauty dp, math, number theory, sortings	1900	x6383
1444B	Divide and Sum combinatorics, math, sortings	1900	x6026
1307D	Cow and Fields binary search, data structures, dfs and similar, graphs, greedy, shortest paths, sortings	1900	x6013
1342D	Multiple Testcases binary search, constructive algorithms, data structures, greedy, sortings, two pointers	1900	x5828
1175D	Array Splitting greedy, sortings	1900	x5635
1251D	Salary Changing binary search, greedy, sortings	1900	x5610
1413C	Perform Easily binary search, brute force, dp, implementation, sortings, two pointers	1900	x5525
1707B	Difference Array brute force, data structures, implementation, sortings	1900	x5517
1701D	Permutation Restoration binary search, data structures, greedy, math, sortings, two pointers	1900	x5468
459E	Pashmak and Graph dp, sortings	1900	x5251
1371E1	Asterism (Easy Version) binary search, brute force, combinatorics, math, number theory, sortings	1900	x4947
1883G2	Dances (Hard Version) binary search, greedy, sortings, two pointers	1900	x4837
1791G2	Teleporters (Hard Version) binary search, greedy, sortings	1900	x4444
1746D	Paths on the Tree dfs and similar, dp, greedy, sortings, trees	1900	x4412
817D	Imbalanced Array data structures, divide and conquer, dsu, sortings	1900	x4382
1270D	Strange Device constructive algorithms, interactive, math, sortings	1900	x4360
552D	Vanya and Triangles brute force, combinatorics, data structures, geometry, math, sortings	1900	x4351
1834D	Survey in Class brute force, data structures, greedy, implementation, sortings	1900	x4330
1569D	Inconvenient Pairs binary search, data structures, implementation, sortings, two pointers	1900	x4239
3B	Lorry greedy, sortings	1900	x4196
1237C2	Balanced Removals (Harder) binary search, constructive algorithms, divide and conquer, greedy, implementation, sortings	1900	x4126
1650E	Rescheduling the Exam binary search, data structures, greedy, implementation, math, sortings	1900	x4001
557C	Arthur and Table brute force, data structures, dp, greedy, math, sortings	1900	x3937
1311F	Moving Points data structures, divide and conquer, implementation, sortings	1900	x3926
1927F	Microcycle data structures, dfs and similar, dsu, graphs, greedy, implementation, sortings, trees	1900	x3684
1260D	A Game with Traps binary search, dp, greedy, sortings	1900	x3580
1945F	Kirill and Mushrooms data structures, sortings	1900	x3456
1819B	The Butcher geometry, greedy, implementation, sortings, two pointers	1900	x3412
1361B	Johnny and Grandmaster greedy, implementation, math, sortings	1900	x3384
1932F	Feed Cats data structures, dp, sortings	1900	x3300
1801C	Music Festival binary search, data structures, dp, greedy, sortings	1900	x3193
437D	The Child and Zoo dsu, sortings	1900	x3132
1899G	Unusual Entertainment data structures, dfs and similar, dsu, shortest paths, sortings, trees, two pointers	1900	x2884
1043E	Train Hard, Win Easy constructive algorithms, greedy, math, sortings	1900	x2683
633C	Spy Syndrome 2 data structures, dp, hashing, implementation, sortings, string suffix structures, strings	1900	x2598
22D	Segments greedy, sortings	1900	x2593
118C	Fancy Number brute force, greedy, sortings, strings	1900	x2513
417D	Cunning Gena bitmasks, dp, greedy, sortings	1900	x2372
757C	Felicity is Coming! data structures, hashing, sortings, strings	1900	x2306
613B	Skills binary search, brute force, dp, greedy, sortings, two pointers	1900	x2171
353B	Two Heaps combinatorics, constructive algorithms, greedy, implementation, math, sortings	1900	x2169
729E	Subordinates constructive algorithms, data structures, graphs, greedy, sortings	1900	x2132
222D	Olympiad binary search, greedy, sortings, two pointers	1900	x2127
524C	The Art of Dealing with ATM binary search, sortings	1900	x1979
377B	Preparing for the Contest binary search, data structures, greedy, sortings	1900	x1971
1912A	Accumulator Apex data structures, implementation, sortings	1900	x1837
848B	Rooter's Song constructive algorithms, data structures, geometry, implementation, sortings, two pointers	1900	x1813
865B	Ordering Pizza binary search, sortings, ternary search	1900	x1648
45D	Event Dates greedy, meet-in-the-middle, sortings	1900	x1587
158E	Phone Talks *special problem, dp, sortings	1900	x1449
119B	Before Exam constructive algorithms, implementation, sortings	1900	x1061
195D	Analyzing Polyline geometry, math, sortings	1900	x997
120J	Minimum Sum divide and conquer, geometry, sortings	1900	x907
529B	Group Photo 2 (online mirror version) brute force, greedy, sortings	1900	x853
421D	Bug in Code binary search, data structures, sortings	1900	x492
648D	Собачки и миски data structures, greedy, sortings	1900	x221
1156C	Match Points binary search, greedy, sortings, ternary search, two pointers	2000	x5878
1379C	Choosing flowers binary search, brute force, data structures, dfs and similar, dp, greedy, sortings, two pointers	2000	x5397
1513D	GCD and MST constructive algorithms, dsu, graphs, greedy, number theory, sortings	2000	x5016
1244E	Minimizing Difference binary search, constructive algorithms, greedy, sortings, ternary search, two pointers	2000	x4786
1657D	For Gamers. By Gamers. binary search, brute force, greedy, math, sortings	2000	x4694
1487E	Cheap Dinner brute force, data structures, graphs, greedy, implementation, sortings, two pointers	2000	x4352
1525C	Robot Collisions data structures, greedy, implementation, sortings	2000	x4324
1416C	XOR Inverse bitmasks, data structures, divide and conquer, dp, greedy, math, sortings, strings, trees	2000	x4161
1408D	Searchlights binary search, brute force, data structures, dp, implementation, sortings, two pointers	2000	x4154
864E	Fire dp, sortings	2000	x4122
1841D	Pairs of Segments data structures, greedy, sortings, two pointers	2000	x4115
1514D	Cut and Stick binary search, data structures, greedy, implementation, sortings	2000	x4080
1857G	Counting Graphs combinatorics, divide and conquer, dsu, graphs, greedy, sortings, trees	2000	x4050
1256E	Yet Another Division Into Teams dp, greedy, sortings	2000	x3867
777E	Hanoi Factory brute force, data structures, dp, greedy, sortings	2000	x3855
1641B	Repetitions Decoding constructive algorithms, implementation, sortings	2000	x3720
555B	Case of Fugitive data structures, greedy, sortings	2000	x3680
1198C	Matching vs Independent Set constructive algorithms, graphs, greedy, sortings	2000	x3245
1690G	Count the Trains binary search, data structures, greedy, sortings	2000	x3216
1685B	Linguistics greedy, implementation, sortings, strings	2000	x3149
1506F	Triangular Paths constructive algorithms, graphs, math, shortest paths, sortings	2000	x3096
474E	Pillars binary search, data structures, dp, sortings, trees	2000	x3086
388C	Fox and Card Game games, greedy, sortings	2000	x3074
1256F	Equalizing Two Strings constructive algorithms, sortings, strings	2000	x3049
1889C1	Doremy's Drying Plan (Easy Version) brute force, data structures, dp, greedy, sortings	2000	x2980
863E	Turn Off The TV data structures, sortings	2000	x2940
1851G	Vlad and the Mountains binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers	2000	x2902
1320C	World of Darkraft: Battle for Azathoth brute force, data structures, sortings	2000	x2885
1209E1	Rotate Columns (easy version) bitmasks, brute force, dp, greedy, sortings	2000	x2712
1862G	The Great Equalizer binary search, data structures, math, sortings	2000	x2627
571B	Minimization dp, greedy, sortings	2000	x2522
1214E	Petya and Construction Set constructive algorithms, graphs, math, sortings, trees	2000	x2505