Problemset - Codeforces

→ Pay attention

Contest is running
2023 Post World Finals Online ICPC Challenge powered by Huawei
10 days
Register now »

→ Filter Problems

Difficulty: —

matrices

Add tag

Problems

#	Name
166E	Tetrahedron dp, math, matrices	1500	x19970
1699B	Almost Ternary Matrix bitmasks, constructive algorithms, matrices	900	x19179
1513C	Add One dp, matrices	1600	x13221
1648A	Weird Sum combinatorics, data structures, geometry, math, matrices, sortings	1400	x11756
225C	Barcode dp, matrices	1700	x8762
1557C	Moamen and XOR bitmasks, combinatorics, dp, math, matrices	1700	x8331
485A	Factory implementation, math, matrices	1400	x8092
1635D	Infinite Set bitmasks, dp, math, matrices, number theory, strings	1800	x5999
337C	Quiz binary search, greedy, math, matrices, number theory	1600	x4771
1188B	Count Pairs math, matrices, number theory, two pointers	2300	x4292
1117D	Magic Gems dp, math, matrices	2100	x4015
1012B	Chemical table constructive algorithms, dfs and similar, dsu, graphs, matrices	1900	x3652
1332E	Height All the Same combinatorics, constructive algorithms, math, matrices	2100	x3598
718C	Sasha and Array data structures, math, matrices	2300	x3370
582B	Once Again... constructive algorithms, dp, matrices	1900	x3303
1538E	Funny Substrings data structures, hashing, implementation, matrices, strings	2100	x2803
621E	Wet Shark and Blocks dp, matrices	2000	x2728
222E	Decoding Genome dp, matrices	1900	x2536
1182E	Product Oriented Recurrence dp, math, matrices, number theory	2300	x2525
691E	Xor-sequences matrices	1900	x2369
696C	PLEASE combinatorics, dp, implementation, math, matrices	2000	x2049
1335F	Robots on a Grid data structures, dfs and similar, dsu, graphs, greedy, matrices	2200	x1986
1023E	Down or Right constructive algorithms, interactive, matrices	2100	x1955
959F	Mahmoud and Ehab and yet another xor task bitmasks, dp, math, matrices	2400	x1939
1609E	William The Oblivious bitmasks, data structures, dp, matrices	2400	x1843
1252K	Addition Robot data structures, math, matrices	2100	x1785
1761E	Make It Connected binary search, brute force, constructive algorithms, dsu, graphs, greedy, matrices, trees, two pointers	2400	x1733
551D	GukiZ and Binary Operations combinatorics, implementation, math, matrices, number theory	2100	x1723
1101G	(Zero XOR Subset)-less math, matrices	2300	x1607
348D	Turtles dp, matrices	2500	x1565
1713E	Cross Swapping 2-sat, data structures, dsu, greedy, matrices	2400	x1516
750E	New Year and Old Subsequence data structures, divide and conquer, dp, matrices	2600	x1466
821E	Okabe and El Psy Kongroo dp, matrices	2100	x1415
1743F	Intersection and Union data structures, dp, matrices, probabilities	2300	x1409
852B	Neural Network country dp, matrices	2000	x1374
717D	Dexterina’s Lab games, matrices, probabilities	1900	x1371
514E	Darth Vader and Tree dp, matrices	2200	x1366
576D	Flights for Regular Customers dp, matrices	2700	x1306
1427E	Xum bitmasks, constructive algorithms, math, matrices, number theory	2500	x1265
1814E	Chain Chips data structures, dp, matrices	2300	x1252
696D	Legen... data structures, dp, matrices, strings	2500	x1235
1458C	Latin Square math, matrices	2700	x1199
1151F	Sonya and Informatics combinatorics, dp, matrices, probabilities	2300	x1143
1924C	Fractal Origami geometry, math, matrices	2400	x1043
632F	Magic Matrix brute force, divide and conquer, graphs, matrices, trees	2400	x1024
780F	Axel and Marston in Bitland bitmasks, dp, graphs, matrices	2400	x1020
917D	Stranger Trees dp, math, matrices, trees	2600	x1008
954F	Runner's Problem dp, matrices, sortings	2100	x975
1106F	Lunar New Year and a Recursive Sequence math, matrices, number theory	2400	x949
1701F	Points combinatorics, data structures, implementation, math, matrices	2500	x888
891E	Lust combinatorics, math, matrices	3000	x858
226C	Anniversary data structures, implementation, math, matrices, number theory	2400	x844
575A	Fibonotci data structures, math, matrices	2700	x765
1380F	Strange Addition data structures, dp, matrices	2600	x753
147B	Smile House binary search, graphs, matrices	2500	x745
1919F2	Wine Factory (Hard Version) data structures, dp, flows, greedy, matrices	2800	x741
837F	Prefix Sums binary search, brute force, combinatorics, math, matrices	2400	x738
1681E	Labyrinth Adventures data structures, dp, matrices, shortest paths	2600	x698
506E	Mr. Kitayuta's Gift combinatorics, dp, matrices, strings	3000	x685
113D	Museum math, matrices, probabilities	2700	x652
1808E2	Minibuses on Venus (medium version) combinatorics, divide and conquer, dp, matrices	2500	x648
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x643
1895F	Fancy Arrays combinatorics, dp, math, matrices	2600	x627
1152F2	Neko Rules the Catniverse (Large Version) bitmasks, dp, matrices	3000	x596
1916H1	Matrix Rank (Easy Version) brute force, combinatorics, dp, math, matrices	2700	x584
1616F	Tricolor Triangles brute force, graphs, math, matrices	2900	x584
1411G	No Game No Life bitmasks, games, math, matrices	2700	x578
392C	Yet Another Number Sequence combinatorics, math, matrices		x578
385E	Bear in the Field math, matrices	2300	x559
1286D	LCC data structures, math, matrices, probabilities	3100	x557
1025E	Colored Cubes constructive algorithms, implementation, matrices	2700	x548
167E	Wizards and Bets dfs and similar, graphs, math, matrices	2900	x546
351C	Jeff and Brackets dp, matrices	2500	x539
578F	Mirror Box matrices, trees	3200	x534
946F	Fibonacci String Subsequences combinatorics, dp, matrices	2400	x529
1152F1	Neko Rules the Catniverse (Small Version) bitmasks, dp, matrices	2800	x516
1916H2	Matrix Rank (Hard Version) combinatorics, dp, math, matrices, string suffix structures	2700	x502
193C	Hamming Distance constructive algorithms, greedy, math, matrices	2400	x496
1970E2	Trails (Medium) dp, matrices		x495
453D	Little Pony and Elements of Harmony dp, matrices	3000	x459
736D	Permutations math, matrices	2800	x450
498E	Stairs and Lines dp, matrices	2700	x449
923E	Perpetual Subtraction fft, math, matrices	3100	x435
662A	Gambling Nim bitmasks, math, matrices, probabilities	2400	x429
1511F	Chainword brute force, data structures, dp, matrices, string suffix structures, strings	2700	x418
107D	Crime Management dp, graphs, matrices	2400	x400
593E	Strange Calculation and Cats dp, matrices	2400	x399
446D	DZY Loves Games math, matrices, probabilities	2800	x379
917C	Pollywog combinatorics, dp, matrices	2900	x370
51E	Pentagon combinatorics, graphs, matrices	2400	x364
93D	Flags dp, math, matrices	2500	x334
193E	Fibonacci Number brute force, math, matrices	2900	x321
60E	Mushroom Gnomes math, matrices	2600	x316
1672G	Cross Xor constructive algorithms, graphs, math, matrices	3200	x313
1970E3	Trails (Hard) dp, matrices		x309
1698G	Long Binary String bitmasks, math, matrices, meet-in-the-middle, number theory	2900	x301
1662C	European Trip dp, graphs, math, matrices		x289
497E	Subsequences Return dp, matrices	2900	x281
832E	Vasya and Shifts matrices	2600	x278
1864H	Asterism Stream dp, math, matrices	3200	x270

←