Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
02:59:19
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Before contest
Codeforces Round 941 (Div. 2)
02:59:19
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combinatorics

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Problems

#	Name
1843C	Sum in Binary Tree bitmasks, combinatorics, math, trees	800	x30962
1743A	Password brute force, combinatorics, implementation, math	800	x26029
1674B	Dictionary combinatorics, math	800	x25568
1499A	Domino on Windowsill combinatorics, constructive algorithms, math	800	x21005
1821A	Matching combinatorics, math	800	x19316
1658B	Marin and Anti-coprime Permutation combinatorics, math, number theory	800	x18345
1823A	A-characteristic combinatorics, constructive algorithms, math	800	x15774
1581A	CQXYM Count Permutations combinatorics, math, number theory	800	x13238
629A	Far Relative’s Birthday Cake brute force, combinatorics, constructive algorithms, implementation	800	x13089
1855B	Longest Divisors Interval brute force, combinatorics, greedy, math, number theory	900	x23589
1543B	Customising the Track combinatorics, greedy, math	900	x22634
1771A	Hossam and Combinatorics combinatorics, math, sortings	900	x21987
1582B	Luntik and Subsequences combinatorics, math	900	x18725
1777B	Emordnilap combinatorics, greedy, math	900	x16555
1166A	Silent Classroom combinatorics, greedy	900	x13895
1840C	Ski Resort combinatorics, math, two pointers	1000	x24424
1674C	Infinite Replacement combinatorics, implementation, strings	1000	x22872
610A	Pasha and Stick combinatorics, math	1000	x21969
1293B	JOE is on TV! combinatorics, greedy, math	1000	x20770
1539A	Contest Start combinatorics, geometry, greedy, math	1000	x19574
1732A	Bestie brute force, combinatorics, constructive algorithms, implementation, math, number theory	1000	x14388
535B	Tavas and SaDDas bitmasks, brute force, combinatorics, implementation	1100	x21560
1840B	Binary Cafe bitmasks, combinatorics, math	1100	x21416
630C	Lucky Numbers combinatorics, math	1100	x20350
1917B	Erase First or Second Letter brute force, combinatorics, data structures, dp, strings	1100	x19230
1827A	Counting Orders combinatorics, math, sortings, two pointers	1100	x17385
1574B	Combinatorics Homework combinatorics, greedy, math	1100	x17001
1272C	Yet Another Broken Keyboard combinatorics, dp, implementation	1200	x25013
1514B	AND 0, Sum Big bitmasks, combinatorics, math	1200	x22640
1922B	Forming Triangles combinatorics, constructive algorithms, math, sortings	1200	x18870
1843D	Apple Tree combinatorics, dfs and similar, dp, math, trees	1200	x16962
459B	Pashmak and Flowers combinatorics, implementation, sortings	1300	x38377
478B	Random Teams combinatorics, constructive algorithms, greedy, math	1300	x35180
476B	Dreamoon and WiFi bitmasks, brute force, combinatorics, dp, math, probabilities	1300	x28952
1328B	K-th Beautiful String binary search, brute force, combinatorics, implementation, math	1300	x28037
1433E	Two Round Dances combinatorics, math	1300	x17994
617B	Chocolate combinatorics	1300	x17290
251A	Points on Line binary search, combinatorics, two pointers	1300	x16546
1862D	Ice Cream Balls binary search, combinatorics, constructive algorithms, math	1300	x15935
1931D	Divisible Pairs combinatorics, math, number theory	1300	x15628
1326C	Permutation Partitions combinatorics, greedy, math	1300	x15211
1879C	Make it Alternating combinatorics, dp, greedy	1300	x14807
1534C	Little Alawn's Puzzle combinatorics, dp, dsu, graphs, math	1300	x12476
1007A	Reorder the Array combinatorics, data structures, math, sortings, two pointers	1300	x11975
1178C	Tiles combinatorics, greedy, math	1300	x11280
1594E1	Rubik's Cube Coloring (easy version) combinatorics, math	1300	x10843
621B	Wet Shark and Bishops combinatorics, implementation	1300	x10775
1096B	Substring Removal combinatorics, math, strings	1300	x10327
844B	Rectangles combinatorics, math	1300	x6979
840A	Leha and Function combinatorics, greedy, math, number theory, sortings	1300	x6953
630F	Selection of Personnel combinatorics, math	1300	x6543
171B	Star *special problem, combinatorics	1300	x3936
414B	Mashmokh and ACM combinatorics, dp, number theory	1400	x20751
1475C	Ball in Berland combinatorics, graphs, math	1400	x19910
1513B	AND Sequences bitmasks, combinatorics, constructive algorithms, math	1400	x13691
1215B	The Number of Products combinatorics, dp, implementation	1400	x12046
1648A	Weird Sum combinatorics, data structures, geometry, math, matrices, sortings	1400	x11694
131C	The World is a Theatre combinatorics, math	1400	x10619
1284B	New Year and Ascent Sequence binary search, combinatorics, data structures, dp, implementation, sortings	1400	x10582
152C	Pocket Book combinatorics	1400	x10245
804B	Minimum number of steps combinatorics, greedy, implementation, math	1400	x9512
978E	Bus Video System combinatorics, math	1400	x9211
1762C	Binary Strings are Fun combinatorics, math	1400	x8830
1866B	Battling with Numbers combinatorics, math, number theory	1400	x7167
630H	Benches combinatorics, math	1400	x4733
124B	Permutations brute force, combinatorics, implementation	1400	x3744
1552B	Running for Gold combinatorics, graphs, greedy, sortings	1500	x14944
1391C	Cyclic Permutations combinatorics, dp, graphs, math	1500	x14530
1462E1	Close Tuples (easy version) binary search, combinatorics, math, sortings, two pointers	1500	x13171
1569C	Jury Meeting combinatorics, math	1500	x11631
584B	Kolya and Tanya combinatorics	1500	x11568
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x11131
1236B	Alice and the List of Presents combinatorics, math	1500	x10627
1436C	Binary Search binary search, combinatorics	1500	x10518
1105C	Ayoub and Lost Array combinatorics, dp, math	1500	x10111
1614C	Divan and bitwise operations bitmasks, combinatorics, constructive algorithms, dp, math	1500	x9900
1767D	Playoff combinatorics, constructive algorithms, dp, greedy, math	1500	x9382
1739C	Card Game combinatorics, constructive algorithms, dp, games	1500	x8683
553A	Kyoya and Colored Balls combinatorics, dp, math	1500	x8369
1789C	Serval and Toxel's Arrays combinatorics, dp, implementation, math	1500	x8028
1195D1	Submarine in the Rybinsk Sea (easy edition) combinatorics, math, number theory	1500	x7659
1084C	The Fair Nut and String combinatorics, dp, implementation	1500	x7506
1876B	Effects of Anti Pimples combinatorics, number theory, sortings	1500	x7449
1081C	Colorful Bricks combinatorics, dp, math	1500	x6986
608B	Hamming Distance Sum combinatorics, strings	1500	x6467
677C	Vanya and Label bitmasks, combinatorics, implementation, strings	1500	x6271
817B	Makes And The Product combinatorics, implementation, math, sortings	1500	x5544
204A	Little Elephant and Interval binary search, combinatorics, dp	1500	x5519
374B	Inna and Nine combinatorics, greedy	1500	x3229
288B	Polo the Penguin and Houses combinatorics	1500	x2844
1305C	Kuroni and Impossible Calculation brute force, combinatorics, math, number theory	1600	x13541
1475E	Advertising Agency combinatorics, math, sortings	1600	x12839
1288C	Two Arrays combinatorics, dp	1600	x12260
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x11818
322B	Ciel and Flowers combinatorics, math	1600	x11477
1907E	Good Triples brute force, combinatorics, number theory	1600	x8706
1795D	Triangle Coloring combinatorics, math	1600	x8424
1452D	Radio Towers combinatorics, dp, math	1600	x7746
1284C	New Year and Permutation combinatorics, math	1600	x7702
888D	Almost Identity Permutations combinatorics, dp, math	1600	x7590

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