Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 952 (Div. 4)
05:39:43
Register now »

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
1624E	Masha-forgetful brute force, constructive algorithms, dp, hashing, implementation, strings	2000	x3984
1621G	Weighted Increasing Subsequences data structures, dp, math	3200	x626
1621E	New School binary search, data structures, dp, greedy, implementation, sortings	2300	x1731
1620G	Subsequences Galore bitmasks, combinatorics, dp	2400	x865
1620F	Bipartite Array dp, greedy	2800	x590
1620C	BA-String brute force, dp, greedy, implementation, math	1800	x6403
1619E	MEX and Increments constructive algorithms, data structures, dp, greedy, implementation, math, sortings	1700	x8764
1618D	Array and Operations dp, greedy, math	1300	x18433
1617E	Christmas Chocolates dfs and similar, dp, games, graphs, implementation, math, number theory, shortest paths, trees	2700	x841
1616H	Keep XOR Low bitmasks, combinatorics, data structures, divide and conquer, dp, math	3000	x805
1616G	Just Add an Edge dfs and similar, dp, graphs	3500	x266
1616D	Keep the Average High dp, greedy, math	2000	x4750
1615F	LEGOndary Grandmaster combinatorics, dp, math	2800	x769
1614D2	Divan and Kostomuksha (hard version) dp, number theory	2300	x2203
1614D1	Divan and Kostomuksha (easy version) dp, number theory	2100	x3683
1614C	Divan and bitwise operations bitmasks, combinatorics, constructive algorithms, dp, math	1500	x9988
1613D	MEX Sequences dp, math	1900	x4466
1612F	Armor and Weapons brute force, dp, greedy, shortest paths	2800	x577
1612E	Messages brute force, dp, greedy, probabilities, sortings	2000	x2409
1611E2	Escape The Maze (hard version) dfs and similar, dp, greedy, shortest paths, trees	1900	x3688
1610D	Not Quite Lee combinatorics, dp, math, number theory	2000	x2609
1609E	William The Oblivious bitmasks, data structures, dp, matrices	2400	x1887
1609C	Complex Market Analysis binary search, dp, implementation, number theory, schedules, two pointers	1400	x9541
1608F	MEX counting combinatorics, dp, implementation	3200	x524
1608C	Game Master data structures, dfs and similar, dp, graphs, greedy, two pointers	1700	x6461
1606F	Tree Queries brute force, dp, trees	2800	x522
1606E	Arena combinatorics, dp, math	2100	x3369
1605F	PalindORme combinatorics, dp	2900	x292
1603F	October 18, 2017 combinatorics, dp, implementation, math	2700	x269
1603E	A Perfect Problem combinatorics, dp, math	3200	x405
1603D	Artistic Partition divide and conquer, dp, number theory	3000	x618
1603C	Extreme Extension dp, greedy, math, number theory	2300	x1989
1601E	Phys Ed Online data structures, dp, greedy	2900	x467
1601D	Difficult Mountain data structures, dp, greedy, sortings	2700	x1399
1601C	Optimal Insertion data structures, divide and conquer, dp, greedy, sortings	2300	x1935
1601B	Frog Traveler data structures, dfs and similar, dp, graphs, shortest paths, two pointers	1900	x4805
1598F	RBS binary search, bitmasks, brute force, data structures, dp	2400	x1332
1598E	Staircases brute force, combinatorics, data structures, dfs and similar, dp, implementation, math	2100	x2253
1598C	Delete Two Elements data structures, dp, implementation, math, two pointers	1200	x20202
1598A	Computer Game brute force, dfs and similar, dp, implementation	800	x22900
1594E2	Rubik's Cube Coloring (hard version) brute force, dp, implementation, math, trees	2300	x1454
1594D	The Number of Imposters constructive algorithms, dfs and similar, dp, dsu, graphs	1700	x7173
1593G	Changing Brackets constructive algorithms, data structures, dp, greedy	2200	x1631
1593F	Red-Black Number dfs and similar, dp, implementation, math, meet-in-the-middle	2100	x2369
1593B	Make it Divisible by 25 dfs and similar, dp, greedy, math, math	900	x25601
1592C	Bakry and Partitioning bitmasks, constructive algorithms, dfs and similar, dp, graphs, trees	1700	x7683
1585G	Poachers dp, games, graphs, trees	2500	x172
1585F	Non-equal Neighbours combinatorics, dp, math	2400	x1160
1584F	Strange LCS bitmasks, dp, graphs, greedy, strings	2600	x860
1583C	Omkar and Determination data structures, dp	1700	x6840
1582F2	Korney Korneevich and XOR (hard version) binary search, brute force, dp, greedy, two pointers	2400	x1727
1582F1	Korney Korneevich and XOR (easy version) bitmasks, dp, greedy	1800	x5322
1582E	Pchelyonok and Segments binary search, data structures, dp, greedy, math	2000	x3615
1580D	Subsequence brute force, divide and conquer, dp, greedy, trees	2900	x769
1580B	Mathematics Curriculum brute force, combinatorics, dp, trees	2600	x987
1580A	Portal brute force, data structures, dp, greedy, implementation	1700	x3581
1579G	Minimal Coverage dp	2200	x2290
1575L	Longest Array Deconstruction data structures, divide and conquer, dp, sortings	2100	x1297
1575H	Holiday Wall Ornaments dp, strings	2200	x590
1575D	Divisible by Twenty-Five brute force, dfs and similar, dp	1800	x2431
1574F	Occurrences combinatorics, dfs and similar, dp, dsu, fft, graphs	2700	x591
1572E	Polygon binary search, dp, geometry	3000	x281
1572C	Paint dp, greedy	2700	x1399
1572A	Book binary search, brute force, data structures, dp, graphs, implementation, sortings	1800	x8604
1571G	A Battle Against a Dragon *special problem, data structures, dp	2500	x72
1571F	Kotlinforces *special problem, constructive algorithms, dp	2000	x178
1571E	Fix the String *special problem, bitmasks, dp, greedy	1700	x328
1569F	Palindromic Hamiltonian Path brute force, dfs and similar, dp, graphs, hashing	3000	x230
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x11906
1566H	Xor-quiz constructive algorithms, dp, interactive, math, number theory	3200	x126
1566F	Points Movement data structures, dp, greedy, implementation, sortings	2600	x932
1566E	Buds Re-hanging constructive algorithms, dfs and similar, dp, greedy, trees	2000	x4037
1566C	MAX-MEX Cut bitmasks, constructive algorithms, dp, greedy	1000	x17131
1566B	MIN-MEX Cut bitmasks, constructive algorithms, dp, greedy	800	x19206
1562E	Rescue Niwen! dp, greedy, string suffix structures, strings	2500	x1344
1562D1	Two Hundred Twenty One (easy version) data structures, dp, math	1700	x6210
1561D1	Up the Strip (simplified version) brute force, data structures, dp, math, number theory	1700	x5469
1560F2	Nearest Beautiful Number (hard version) bitmasks, brute force, constructive algorithms, dfs and similar, dp, greedy	2100	x4231
1559E	Mocha and Stars combinatorics, dp, fft, math, number theory	2200	x2231
1559B	Mocha and Red and Blue dp, greedy	900	x22083
1558B	Up the Strip brute force, dp, math, number theory, two pointers	1900	x4663
1557D	Ezzat and Grid data structures, dp, greedy	2200	x2488
1557C	Moamen and XOR bitmasks, combinatorics, dp, math, matrices	1700	x8378
1556F	Sports Betting bitmasks, combinatorics, dp, graphs, math, probabilities	2500	x1182
1556E	Equilibrium data structures, dp, greedy	2200	x2520
1555D	Say No to Palindromes brute force, constructive algorithms, dp, strings	1600	x11871
1555C	Coin Rows brute force, constructive algorithms, dp, implementation	1300	x21052
1554E	You dfs and similar, dp, math, number theory	2600	x1189
1553I	Stairs combinatorics, divide and conquer, dp, fft, math	3400	x198
1553D	Backspace dp, greedy, strings, two pointers	1500	x13412
1553C	Penalty bitmasks, brute force, dp, greedy	1200	x17424
1553B	Reverse String brute force, dp, hashing, implementation, strings	1300	x13883
1552F	Telepanting binary search, data structures, dp, sortings	2200	x2813
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x6751
1551F	Equidistant Vertices brute force, combinatorics, dfs and similar, dp, trees	2200	x1764
1551E	Fixed Points binary search, brute force, dp	2000	x3733
1550F	Jumping Around binary search, data structures, divide and conquer, dp, dsu, graphs, shortest paths	2700	x636
1550E	Stringforces binary search, bitmasks, brute force, dp, strings, two pointers	2500	x1454
1549B	Gregor and the Pawn Game dfs and similar, dp, flows, graph matchings, graphs, greedy, implementation	800	x23904
1548C	The Three Little Pigs combinatorics, dp, fft, math	2500	x1745