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
1619G	Unusual Minesweeper binary search, dfs and similar, dsu, greedy, sortings	2000	x2258
1183G	Candy Box (hard version) greedy, implementation, sortings	2000	x2273
1061D	TV Shows data structures, greedy, implementation, sortings	2000	x2292
1612E	Messages brute force, dp, greedy, probabilities, sortings	2000	x2386
1214E	Petya and Construction Set constructive algorithms, graphs, math, sortings, trees	2000	x2505
571B	Minimization dp, greedy, sortings	2000	x2522
1862G	The Great Equalizer binary search, data structures, math, sortings	2000	x2627
1209E1	Rotate Columns (easy version) bitmasks, brute force, dp, greedy, sortings	2000	x2712
1320C	World of Darkraft: Battle for Azathoth brute force, data structures, sortings	2000	x2880
1851G	Vlad and the Mountains binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers	2000	x2900
863E	Turn Off The TV data structures, sortings	2000	x2939
1889C1	Doremy's Drying Plan (Easy Version) brute force, data structures, dp, greedy, sortings	2000	x2974
1256F	Equalizing Two Strings constructive algorithms, sortings, strings	2000	x3049
388C	Fox and Card Game games, greedy, sortings	2000	x3074
474E	Pillars binary search, data structures, dp, sortings, trees	2000	x3086
1506F	Triangular Paths constructive algorithms, graphs, math, shortest paths, sortings	2000	x3096
1685B	Linguistics greedy, implementation, sortings, strings	2000	x3149
1690G	Count the Trains binary search, data structures, greedy, sortings	2000	x3215
1198C	Matching vs Independent Set constructive algorithms, graphs, greedy, sortings	2000	x3245
555B	Case of Fugitive data structures, greedy, sortings	2000	x3680
1641B	Repetitions Decoding constructive algorithms, implementation, sortings	2000	x3719
777E	Hanoi Factory brute force, data structures, dp, greedy, sortings	2000	x3853
1256E	Yet Another Division Into Teams dp, greedy, sortings	2000	x3867
1857G	Counting Graphs combinatorics, divide and conquer, dsu, graphs, greedy, sortings, trees	2000	x4050
1514D	Cut and Stick binary search, data structures, greedy, implementation, sortings	2000	x4080
1841D	Pairs of Segments data structures, greedy, sortings, two pointers	2000	x4113
864E	Fire dp, sortings	2000	x4122
1408D	Searchlights binary search, brute force, data structures, dp, implementation, sortings, two pointers	2000	x4154
1416C	XOR Inverse bitmasks, data structures, divide and conquer, dp, greedy, math, sortings, strings, trees	2000	x4161
1525C	Robot Collisions data structures, greedy, implementation, sortings	2000	x4323
1487E	Cheap Dinner brute force, data structures, graphs, greedy, implementation, sortings, two pointers	2000	x4352
1657D	For Gamers. By Gamers. binary search, brute force, greedy, math, sortings	2000	x4694
1244E	Minimizing Difference binary search, constructive algorithms, greedy, sortings, ternary search, two pointers	2000	x4783
1513D	GCD and MST constructive algorithms, dsu, graphs, greedy, number theory, sortings	2000	x5016
1379C	Choosing flowers binary search, brute force, data structures, dfs and similar, dp, greedy, sortings, two pointers	2000	x5396
1156C	Match Points binary search, greedy, sortings, ternary search, two pointers	2000	x5863
648D	Собачки и миски data structures, greedy, sortings	1900	x221
421D	Bug in Code binary search, data structures, sortings	1900	x492
529B	Group Photo 2 (online mirror version) brute force, greedy, sortings	1900	x853
120J	Minimum Sum divide and conquer, geometry, sortings	1900	x906
195D	Analyzing Polyline geometry, math, sortings	1900	x997
119B	Before Exam constructive algorithms, implementation, sortings	1900	x1061
158E	Phone Talks *special problem, dp, sortings	1900	x1449
45D	Event Dates greedy, meet-in-the-middle, sortings	1900	x1586
865B	Ordering Pizza binary search, sortings, ternary search	1900	x1648
848B	Rooter's Song constructive algorithms, data structures, geometry, implementation, sortings, two pointers	1900	x1813
1912A	Accumulator Apex data structures, implementation, sortings	1900	x1836
377B	Preparing for the Contest binary search, data structures, greedy, sortings	1900	x1971
524C	The Art of Dealing with ATM binary search, sortings	1900	x1979
222D	Olympiad binary search, greedy, sortings, two pointers	1900	x2127
729E	Subordinates constructive algorithms, data structures, graphs, greedy, sortings	1900	x2132
353B	Two Heaps combinatorics, constructive algorithms, greedy, implementation, math, sortings	1900	x2169
613B	Skills binary search, brute force, dp, greedy, sortings, two pointers	1900	x2170
757C	Felicity is Coming! data structures, hashing, sortings, strings	1900	x2306
417D	Cunning Gena bitmasks, dp, greedy, sortings	1900	x2371
118C	Fancy Number brute force, greedy, sortings, strings	1900	x2513
22D	Segments greedy, sortings	1900	x2592
633C	Spy Syndrome 2 data structures, dp, hashing, implementation, sortings, string suffix structures, strings	1900	x2595
1043E	Train Hard, Win Easy constructive algorithms, greedy, math, sortings	1900	x2682
1899G	Unusual Entertainment data structures, dfs and similar, dsu, shortest paths, sortings, trees, two pointers	1900	x2884
437D	The Child and Zoo dsu, sortings	1900	x3132
1801C	Music Festival binary search, data structures, dp, greedy, sortings	1900	x3192
1932F	Feed Cats data structures, dp, sortings	1900	x3292
1361B	Johnny and Grandmaster greedy, implementation, math, sortings	1900	x3384
1819B	The Butcher geometry, greedy, implementation, sortings, two pointers	1900	x3412
1945F	Kirill and Mushrooms data structures, sortings	1900	x3442
1260D	A Game with Traps binary search, dp, greedy, sortings	1900	x3579
1927F	Microcycle data structures, dfs and similar, dsu, graphs, greedy, implementation, sortings, trees	1900	x3683
1311F	Moving Points data structures, divide and conquer, implementation, sortings	1900	x3922
557C	Arthur and Table brute force, data structures, dp, greedy, math, sortings	1900	x3937
1650E	Rescheduling the Exam binary search, data structures, greedy, implementation, math, sortings	1900	x4000
1237C2	Balanced Removals (Harder) binary search, constructive algorithms, divide and conquer, greedy, implementation, sortings	1900	x4126
3B	Lorry greedy, sortings	1900	x4195
1569D	Inconvenient Pairs binary search, data structures, implementation, sortings, two pointers	1900	x4237
1834D	Survey in Class brute force, data structures, greedy, implementation, sortings	1900	x4324
552D	Vanya and Triangles brute force, combinatorics, data structures, geometry, math, sortings	1900	x4351
1270D	Strange Device constructive algorithms, interactive, math, sortings	1900	x4360
817D	Imbalanced Array data structures, divide and conquer, dsu, sortings	1900	x4381
1746D	Paths on the Tree dfs and similar, dp, greedy, sortings, trees	1900	x4411
1791G2	Teleporters (Hard Version) binary search, greedy, sortings	1900	x4444
1883G2	Dances (Hard Version) binary search, greedy, sortings, two pointers	1900	x4832
1371E1	Asterism (Easy Version) binary search, brute force, combinatorics, math, number theory, sortings	1900	x4947
459E	Pashmak and Graph dp, sortings	1900	x5251
1701D	Permutation Restoration binary search, data structures, greedy, math, sortings, two pointers	1900	x5466
1707B	Difference Array brute force, data structures, implementation, sortings	1900	x5517
1413C	Perform Easily binary search, brute force, dp, implementation, sortings, two pointers	1900	x5525
1251D	Salary Changing binary search, greedy, sortings	1900	x5608
1175D	Array Splitting greedy, sortings	1900	x5631
1342D	Multiple Testcases binary search, constructive algorithms, data structures, greedy, sortings, two pointers	1900	x5828
1307D	Cow and Fields binary search, data structures, dfs and similar, graphs, greedy, shortest paths, sortings	1900	x6009
1444B	Divide and Sum combinatorics, math, sortings	1900	x6025
1475G	Strange Beauty dp, math, number theory, sortings	1900	x6383
1242B	0-1 MST dfs and similar, dsu, graphs, sortings	1900	x6953
1375D	Replace by MEX brute force, constructive algorithms, sortings	1900	x8703
5C	Longest Regular Bracket Sequence constructive algorithms, data structures, dp, greedy, sortings, strings	1900	x12621
1402A	Fancy Fence *special problem, data structures, dsu, implementation, math, sortings	1800	x1133
847K	Travel Cards greedy, implementation, sortings	1800	x1482
370C	Mittens constructive algorithms, greedy, sortings	1800	x1499
83B	Doctor binary search, math, sortings	1800	x1615
252B	Unsorting Array brute force, sortings	1800	x1676