Problemset - Codeforces

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combinatorics

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Problems

#	Name
685A	Robbers' watch brute force, combinatorics, dp, math	1700	x4145
1043D	Mysterious Crime brute force, combinatorics, math, meet-in-the-middle, two pointers	1700	x4376
689C	Mike and Chocolate Thieves binary search, combinatorics, math	1700	x4910
621C	Wet Shark and Flowers combinatorics, math, number theory, probabilities	1700	x5301
1735D	Meta-set brute force, combinatorics, data structures, hashing, math	1700	x5305
1102E	Monotonic Renumeration combinatorics, sortings	1700	x5669
1279D	Santa's Bot combinatorics, math, probabilities	1700	x5924
630I	Parking Lot combinatorics, math	1700	x6325
1329B	Dreamoon Likes Sequences bitmasks, combinatorics, math	1700	x6398
489D	Unbearable Controversy of Being brute force, combinatorics, dfs and similar, graphs	1700	x6549
1091D	New Year and the Permutation Concatenation combinatorics, dp, math	1700	x6604
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x6641
518D	Ilya and Escalator combinatorics, dp, math, probabilities	1700	x6701
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x6754
1931F	Chat Screenshots combinatorics, dfs and similar, graphs	1700	x7016
1239A	Ivan the Fool and the Probability Theory combinatorics, dp, math	1700	x7094
1829H	Don't Blame Me bitmasks, combinatorics, dp, math	1700	x7133
1422C	Bargain combinatorics, dp, math	1700	x8091
1557C	Moamen and XOR bitmasks, combinatorics, dp, math, matrices	1700	x8347
1715C	Monoblock combinatorics, data structures, implementation, math	1700	x8363
1598D	Training Session combinatorics, data structures, geometry, implementation, math	1700	x8420
1528B	Kavi on Pairing Duty combinatorics, dp, math	1700	x8488
1312D	Count the Arrays combinatorics, math	1700	x8973
1301C	Ayoub's function binary search, combinatorics, greedy, math, strings	1700	x9064
1462E2	Close Tuples (hard version) binary search, combinatorics, implementation, math, sortings, two pointers	1700	x9232
1699C	The Third Problem combinatorics, constructive algorithms, math	1700	x9440
323A	Black-and-White Cube combinatorics, constructive algorithms	1600	x720
52B	Right Triangles combinatorics	1600	x1981
272D	Dima and Two Sequences combinatorics, math, sortings	1600	x2589
630G	Challenge Pennants combinatorics, math	1600	x2636
319A	Malek Dance Club combinatorics, math	1600	x2759
107B	Basketball Team combinatorics, dp, math, probabilities	1600	x3294
150B	Quantity of Strings combinatorics, dfs and similar, graphs, math	1600	x3972
340C	Tourist Problem combinatorics, implementation, math	1600	x4117
364A	Matrix combinatorics, data structures, implementation	1600	x4610
735C	Tennis Championship combinatorics, constructive algorithms, greedy, math	1600	x7347
888D	Almost Identity Permutations combinatorics, dp, math	1600	x7653
1284C	New Year and Permutation combinatorics, math	1600	x7719
1452D	Radio Towers combinatorics, dp, math	1600	x7776
1957C	How Does the Rook Move? combinatorics, dp, math	1600	x7811
1795D	Triangle Coloring combinatorics, math	1600	x8521
1907E	Good Triples brute force, combinatorics, number theory	1600	x8901
322B	Ciel and Flowers combinatorics, math	1600	x11517
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x11865
1288C	Two Arrays combinatorics, dp	1600	x12322
1475E	Advertising Agency combinatorics, math, sortings	1600	x12930
1305C	Kuroni and Impossible Calculation brute force, combinatorics, math, number theory	1600	x13661
288B	Polo the Penguin and Houses combinatorics	1500	x2848
374B	Inna and Nine combinatorics, greedy	1500	x3234
204A	Little Elephant and Interval binary search, combinatorics, dp	1500	x5544
817B	Makes And The Product combinatorics, implementation, math, sortings	1500	x5573
677C	Vanya and Label bitmasks, combinatorics, implementation, strings	1500	x6291
608B	Hamming Distance Sum combinatorics, strings	1500	x6489
1081C	Colorful Bricks combinatorics, dp, math	1500	x7057
1876B	Effects of Anti Pimples combinatorics, number theory, sortings	1500	x7564
1084C	The Fair Nut and String combinatorics, dp, implementation	1500	x7564
1195D1	Submarine in the Rybinsk Sea (easy edition) combinatorics, math, number theory	1500	x7778
1789C	Serval and Toxel's Arrays combinatorics, dp, implementation, math	1500	x8115
553A	Kyoya and Colored Balls combinatorics, dp, math	1500	x8388
1739C	Card Game combinatorics, constructive algorithms, dp, games	1500	x8734
1767D	Playoff combinatorics, constructive algorithms, dp, greedy, math	1500	x9459
1614C	Divan and bitwise operations bitmasks, combinatorics, constructive algorithms, dp, math	1500	x9936
1105C	Ayoub and Lost Array combinatorics, dp, math	1500	x10160
1436C	Binary Search binary search, combinatorics	1500	x10550
1236B	Alice and the List of Presents combinatorics, math	1500	x10679
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x11295
584B	Kolya and Tanya combinatorics	1500	x11609
1569C	Jury Meeting combinatorics, math	1500	x11670
1462E1	Close Tuples (easy version) binary search, combinatorics, math, sortings, two pointers	1500	x13235
1391C	Cyclic Permutations combinatorics, dp, graphs, math	1500	x14566
1552B	Running for Gold combinatorics, graphs, greedy, sortings	1500	x15001
124B	Permutations brute force, combinatorics, implementation	1400	x3762
630H	Benches combinatorics, math	1400	x4750
1866B	Battling with Numbers combinatorics, math, number theory	1400	x7253
1762C	Binary Strings are Fun combinatorics, math	1400	x8882
978E	Bus Video System combinatorics, math	1400	x9261
804B	Minimum number of steps combinatorics, greedy, implementation, math	1400	x9527
152C	Pocket Book combinatorics	1400	x10285
1284B	New Year and Ascent Sequence binary search, combinatorics, data structures, dp, implementation, sortings	1400	x10596
131C	The World is a Theatre combinatorics, math	1400	x10688
1648A	Weird Sum combinatorics, data structures, geometry, math, matrices, sortings	1400	x11828
1215B	The Number of Products combinatorics, dp, implementation	1400	x12121
1513B	AND Sequences bitmasks, combinatorics, constructive algorithms, math	1400	x13825
1475C	Ball in Berland combinatorics, graphs, math	1400	x20041
414B	Mashmokh and ACM combinatorics, dp, number theory	1400	x20949
171B	Star *special problem, combinatorics	1300	x3949
630F	Selection of Personnel combinatorics, math	1300	x6584
840A	Leha and Function combinatorics, greedy, math, number theory, sortings	1300	x6956
844B	Rectangles combinatorics, math	1300	x7007
1096B	Substring Removal combinatorics, math, strings	1300	x10349
621B	Wet Shark and Bishops combinatorics, implementation	1300	x10800
1594E1	Rubik's Cube Coloring (easy version) combinatorics, math	1300	x10887
1178C	Tiles combinatorics, greedy, math	1300	x11452
1007A	Reorder the Array combinatorics, data structures, math, sortings, two pointers	1300	x11998
1534C	Little Alawn's Puzzle combinatorics, dp, dsu, graphs, math	1300	x12522
1879C	Make it Alternating combinatorics, dp, greedy	1300	x15048
1326C	Permutation Partitions combinatorics, greedy, math	1300	x15296
1931D	Divisible Pairs combinatorics, math, number theory	1300	x16042
1862D	Ice Cream Balls binary search, combinatorics, constructive algorithms, math	1300	x16135
251A	Points on Line binary search, combinatorics, two pointers	1300	x16800