Problemset - Codeforces

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Problems

#	Name
1614D2	Divan and Kostomuksha (hard version) dp, number theory	2300	x2187
1614D1	Divan and Kostomuksha (easy version) dp, number theory	2100	x3659
1614C	Divan and bitwise operations bitmasks, combinatorics, constructive algorithms, dp, math	1500	x9936
1613D	MEX Sequences dp, math	1900	x4445
1612F	Armor and Weapons brute force, dp, greedy, shortest paths	2800	x569
1612E	Messages brute force, dp, greedy, probabilities, sortings	2000	x2391
1611E2	Escape The Maze (hard version) dfs and similar, dp, greedy, shortest paths, trees	1900	x3664
1610D	Not Quite Lee combinatorics, dp, math, number theory	2000	x2589
1609E	William The Oblivious bitmasks, data structures, dp, matrices	2400	x1883
1609C	Complex Market Analysis binary search, dp, implementation, number theory, schedules, two pointers	1400	x9516
1608F	MEX counting combinatorics, dp, implementation	3200	x520
1608C	Game Master data structures, dfs and similar, dp, graphs, greedy, two pointers	1700	x6427
1606F	Tree Queries brute force, dp, trees	2800	x520
1606E	Arena combinatorics, dp, math	2100	x3353
1605F	PalindORme combinatorics, dp	2900	x291
1603F	October 18, 2017 combinatorics, dp, implementation, math	2700	x268
1603E	A Perfect Problem combinatorics, dp, math	3200	x403
1603D	Artistic Partition divide and conquer, dp, number theory	3000	x610
1603C	Extreme Extension dp, greedy, math, number theory	2300	x1981
1601E	Phys Ed Online data structures, dp, greedy	2900	x464
1601D	Difficult Mountain data structures, dp, greedy, sortings	2700	x1389
1601C	Optimal Insertion data structures, divide and conquer, dp, greedy, sortings	2300	x1920
1601B	Frog Traveler data structures, dfs and similar, dp, graphs, shortest paths, two pointers	1900	x4789
1598F	RBS binary search, bitmasks, brute force, data structures, dp	2400	x1324
1598E	Staircases brute force, combinatorics, data structures, dfs and similar, dp, implementation, math	2100	x2244
1598C	Delete Two Elements data structures, dp, implementation, math, two pointers	1200	x20114
1598A	Computer Game brute force, dfs and similar, dp, implementation	800	x22818
1594E2	Rubik's Cube Coloring (hard version) brute force, dp, implementation, math, trees	2300	x1448
1594D	The Number of Imposters constructive algorithms, dfs and similar, dp, dsu, graphs	1700	x7115
1593G	Changing Brackets constructive algorithms, data structures, dp, greedy	2200	x1622
1593F	Red-Black Number dfs and similar, dp, implementation, math, meet-in-the-middle	2100	x2360
1593B	Make it Divisible by 25 dfs and similar, dp, greedy, math, math	900	x25338
1592C	Bakry and Partitioning bitmasks, constructive algorithms, dfs and similar, dp, graphs, trees	1700	x7639
1585G	Poachers dp, games, graphs, trees	2500	x171
1585F	Non-equal Neighbours combinatorics, dp, math	2400	x1150
1584F	Strange LCS bitmasks, dp, graphs, greedy, strings	2600	x848
1583C	Omkar and Determination data structures, dp	1700	x6817
1582F2	Korney Korneevich and XOR (hard version) binary search, brute force, dp, greedy, two pointers	2400	x1713
1582F1	Korney Korneevich and XOR (easy version) bitmasks, dp, greedy	1800	x5276
1582E	Pchelyonok and Segments binary search, data structures, dp, greedy, math	2000	x3598
1580D	Subsequence brute force, divide and conquer, dp, greedy, trees	2900	x764
1580B	Mathematics Curriculum brute force, combinatorics, dp, trees	2600	x979
1580A	Portal brute force, data structures, dp, greedy, implementation	1700	x3567
1579G	Minimal Coverage dp	2200	x2277
1575L	Longest Array Deconstruction data structures, divide and conquer, dp, sortings	2100	x1280
1575H	Holiday Wall Ornaments dp, strings	2200	x587
1575D	Divisible by Twenty-Five brute force, dfs and similar, dp	1800	x2419
1574F	Occurrences combinatorics, dfs and similar, dp, dsu, fft, graphs	2700	x586
1572E	Polygon binary search, dp, geometry	3000	x279
1572C	Paint dp, greedy	2700	x1397
1572A	Book binary search, brute force, data structures, dp, graphs, implementation, sortings	1800	x8561
1571G	A Battle Against a Dragon *special problem, data structures, dp	2500	x71
1571F	Kotlinforces *special problem, constructive algorithms, dp	2000	x177
1571E	Fix the String *special problem, bitmasks, dp, greedy	1700	x325
1569F	Palindromic Hamiltonian Path brute force, dfs and similar, dp, graphs, hashing	3000	x228
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x11865
1566H	Xor-quiz constructive algorithms, dp, interactive, math, number theory	3200	x123
1566F	Points Movement data structures, dp, greedy, implementation, sortings	2600	x928
1566E	Buds Re-hanging constructive algorithms, dfs and similar, dp, greedy, trees	2000	x4022
1566C	MAX-MEX Cut bitmasks, constructive algorithms, dp, greedy	1000	x17053
1566B	MIN-MEX Cut bitmasks, constructive algorithms, dp, greedy	800	x19127
1562E	Rescue Niwen! dp, greedy, string suffix structures, strings	2500	x1330
1562D1	Two Hundred Twenty One (easy version) data structures, dp, math	1700	x6191
1561D1	Up the Strip (simplified version) brute force, data structures, dp, math, number theory	1700	x5395
1560F2	Nearest Beautiful Number (hard version) bitmasks, brute force, constructive algorithms, dfs and similar, dp, greedy	2100	x4209
1559E	Mocha and Stars combinatorics, dp, fft, math, number theory	2200	x2218
1559B	Mocha and Red and Blue dp, greedy	900	x22023
1558B	Up the Strip brute force, dp, math, number theory, two pointers	1900	x4617
1557D	Ezzat and Grid data structures, dp, greedy	2200	x2483
1557C	Moamen and XOR bitmasks, combinatorics, dp, math, matrices	1700	x8347
1556F	Sports Betting bitmasks, combinatorics, dp, graphs, math, probabilities	2500	x1178
1556E	Equilibrium data structures, dp, greedy	2200	x2515
1555D	Say No to Palindromes brute force, constructive algorithms, dp, strings	1600	x11788
1555C	Coin Rows brute force, constructive algorithms, dp, implementation	1300	x20942
1554E	You dfs and similar, dp, math, number theory	2600	x1183
1553I	Stairs combinatorics, divide and conquer, dp, fft, math	3400	x195
1553D	Backspace dp, greedy, strings, two pointers	1500	x13364
1553C	Penalty bitmasks, brute force, dp, greedy	1200	x17351
1553B	Reverse String brute force, dp, hashing, implementation, strings	1300	x13848
1552F	Telepanting binary search, data structures, dp, sortings	2200	x2788
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x6711
1551F	Equidistant Vertices brute force, combinatorics, dfs and similar, dp, trees	2200	x1752
1551E	Fixed Points binary search, brute force, dp	2000	x3695
1550F	Jumping Around binary search, data structures, divide and conquer, dp, dsu, graphs, shortest paths	2700	x630
1550E	Stringforces binary search, bitmasks, brute force, dp, strings, two pointers	2500	x1441
1549B	Gregor and the Pawn Game dfs and similar, dp, flows, graph matchings, graphs, greedy, implementation	800	x23839
1548C	The Three Little Pigs combinatorics, dp, fft, math	2500	x1737
1547G	How Many Paths? dfs and similar, dp, graphs, trees	2100	x2869
1547E	Air Conditioners data structures, dp, implementation, shortest paths, sortings, two pointers	1500	x13885
1545F	AquaMoon and Potatoes brute force, data structures, dp	3500	x105
1545E2	AquaMoon and Time Stop (hard version) data structures, dp	3500	x79
1545E1	AquaMoon and Time Stop (easy version) data structures, dp	3500	x74
1542E2	Abnormal Permutation Pairs (hard version) combinatorics, dp, fft, math	2700	x811
1542E1	Abnormal Permutation Pairs (easy version) combinatorics, dp, fft, math	2400	x1187
1542D	Priority Queue combinatorics, dp, implementation, math, ternary search	2200	x2534
1540C2	Converging Array (Hard Version) dp, math	2900	x437
1540C1	Converging Array (Easy Version) dp, math	2700	x596
1540B	Tree Array brute force, combinatorics, dp, graphs, math, probabilities, trees	2300	x2496
1539E	Game with Cards binary search, constructive algorithms, data structures, dp, greedy, implementation	2500	x925
1539B	Love Song dp, implementation, strings	800	x23825