Problemset - Codeforces

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Codeforces Round (Div. 3)
37:23:17
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Problems

#	Name
1603E	A Perfect Problem combinatorics, dp, math	3200	x399
1603D	Artistic Partition divide and conquer, dp, number theory	3000	x609
1603C	Extreme Extension dp, greedy, math, number theory	2300	x1973
1601E	Phys Ed Online data structures, dp, greedy	2900	x462
1601D	Difficult Mountain data structures, dp, greedy, sortings	2700	x1365
1601C	Optimal Insertion data structures, divide and conquer, dp, greedy, sortings	2300	x1915
1601B	Frog Traveler data structures, dfs and similar, dp, graphs, shortest paths, two pointers	1900	x4767
1598F	RBS binary search, bitmasks, brute force, data structures, dp	2400	x1322
1598E	Staircases brute force, combinatorics, data structures, dfs and similar, dp, implementation, math	2100	x2233
1598C	Delete Two Elements data structures, dp, implementation, math, two pointers	1200	x20008
1598A	Computer Game brute force, dfs and similar, dp, implementation	800	x22730
1594E2	Rubik's Cube Coloring (hard version) brute force, dp, implementation, math, trees	2300	x1446
1594D	The Number of Imposters constructive algorithms, dfs and similar, dp, dsu, graphs	1700	x7089
1593G	Changing Brackets constructive algorithms, data structures, dp, greedy	2200	x1615
1593F	Red-Black Number dfs and similar, dp, implementation, math, meet-in-the-middle	2100	x2327
1593B	Make it Divisible by 25 dfs and similar, dp, greedy, math, math	900	x25107
1592C	Bakry and Partitioning bitmasks, constructive algorithms, dfs and similar, dp, graphs, trees	1700	x7590
1585G	Poachers dp, games, graphs, trees	2500	x169
1585F	Non-equal Neighbours combinatorics, dp, math	2400	x1149
1584F	Strange LCS bitmasks, dp, graphs, greedy, strings	2600	x843
1583C	Omkar and Determination data structures, dp	1700	x6794
1582F2	Korney Korneevich and XOR (hard version) binary search, brute force, dp, greedy, two pointers	2400	x1709
1582F1	Korney Korneevich and XOR (easy version) bitmasks, dp, greedy	1800	x5240
1582E	Pchelyonok and Segments binary search, data structures, dp, greedy, math	2000	x3579
1580D	Subsequence brute force, divide and conquer, dp, greedy, trees	2900	x757
1580B	Mathematics Curriculum brute force, combinatorics, dp, trees	2600	x968
1580A	Portal brute force, data structures, dp, greedy, implementation	1700	x3541
1579G	Minimal Coverage dp	2200	x2262
1575L	Longest Array Deconstruction data structures, divide and conquer, dp, sortings	2100	x1225
1575H	Holiday Wall Ornaments dp, strings	2200	x570
1575D	Divisible by Twenty-Five brute force, dfs and similar, dp	1800	x2397
1574F	Occurrences combinatorics, dfs and similar, dp, dsu, fft, graphs	2700	x584
1572E	Polygon binary search, dp, geometry	3000	x278
1572C	Paint dp, greedy	2700	x1388
1572A	Book binary search, brute force, data structures, dp, graphs, implementation, sortings	1800	x8515
1571G	A Battle Against a Dragon *special problem, data structures, dp	2500	x71
1571F	Kotlinforces *special problem, constructive algorithms, dp	2000	x176
1571E	Fix the String *special problem, bitmasks, dp, greedy	1700	x319
1569F	Palindromic Hamiltonian Path brute force, dfs and similar, dp, graphs, hashing	3000	x227
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x11824
1566H	Xor-quiz constructive algorithms, dp, interactive, math, number theory	3200	x110
1566F	Points Movement data structures, dp, greedy, implementation, sortings	2600	x926
1566E	Buds Re-hanging constructive algorithms, dfs and similar, dp, greedy, trees	2000	x4009
1566C	MAX-MEX Cut bitmasks, constructive algorithms, dp, greedy	1000	x16995
1566B	MIN-MEX Cut bitmasks, constructive algorithms, dp, greedy	800	x19077
1562E	Rescue Niwen! dp, greedy, string suffix structures, strings	2500	x1325
1562D1	Two Hundred Twenty One (easy version) data structures, dp, math	1700	x6178
1561D1	Up the Strip (simplified version) brute force, data structures, dp, math, number theory	1700	x5381
1560F2	Nearest Beautiful Number (hard version) bitmasks, brute force, constructive algorithms, dfs and similar, dp, greedy	2100	x4190
1559E	Mocha and Stars combinatorics, dp, fft, math, number theory	2200	x2213
1559B	Mocha and Red and Blue dp, greedy	900	x21946
1558B	Up the Strip brute force, dp, math, number theory, two pointers	1900	x4601
1557D	Ezzat and Grid data structures, dp, greedy	2200	x2456
1557C	Moamen and XOR bitmasks, combinatorics, dp, math, matrices	1700	x8315
1556F	Sports Betting bitmasks, combinatorics, dp, graphs, math, probabilities	2500	x1164
1556E	Equilibrium data structures, dp, greedy	2200	x2510
1555D	Say No to Palindromes brute force, constructive algorithms, dp, strings	1600	x11727
1555C	Coin Rows brute force, constructive algorithms, dp, implementation	1300	x20824
1554E	You dfs and similar, dp, math, number theory	2600	x1177
1553I	Stairs combinatorics, divide and conquer, dp, fft, math	3400	x195
1553D	Backspace dp, greedy, strings, two pointers	1500	x13305
1553C	Penalty bitmasks, brute force, dp, greedy	1200	x17281
1553B	Reverse String brute force, dp, hashing, implementation, strings	1300	x13800
1552F	Telepanting binary search, data structures, dp, sortings	2200	x2778
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x6676
1551F	Equidistant Vertices brute force, combinatorics, dfs and similar, dp, trees	2200	x1743
1551E	Fixed Points binary search, brute force, dp	2000	x3675
1550F	Jumping Around binary search, data structures, divide and conquer, dp, dsu, graphs, shortest paths	2700	x627
1550E	Stringforces binary search, bitmasks, brute force, dp, strings, two pointers	2500	x1439
1549B	Gregor and the Pawn Game dfs and similar, dp, flows, graph matchings, graphs, greedy, implementation	800	x23732
1548C	The Three Little Pigs combinatorics, dp, fft, math	2500	x1734
1547G	How Many Paths? dfs and similar, dp, graphs, trees	2100	x2848
1547E	Air Conditioners data structures, dp, implementation, shortest paths, sortings, two pointers	1500	x13793
1545F	AquaMoon and Potatoes brute force, data structures, dp	3500	x103
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	x803
1542E1	Abnormal Permutation Pairs (easy version) combinatorics, dp, fft, math	2400	x1181
1542D	Priority Queue combinatorics, dp, implementation, math, ternary search	2200	x2528
1540C2	Converging Array (Hard Version) dp, math	2900	x436
1540C1	Converging Array (Easy Version) dp, math	2700	x593
1540B	Tree Array brute force, combinatorics, dp, graphs, math, probabilities, trees	2300	x2484
1539E	Game with Cards binary search, constructive algorithms, data structures, dp, greedy, implementation	2500	x924
1539B	Love Song dp, implementation, strings	800	x23752
1538F	Interesting Function binary search, dp, math, number theory	1500	x18301
1538A	Stone Game brute force, dp, greedy	800	x35690
1537E1	Erase and Extend (Easy Version) binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers	1600	x12230
1536C	Diluc and Kaeya data structures, dp, hashing, number theory	1500	x13525
1535E	Gold Transfer binary search, data structures, dp, greedy, interactive, trees	2200	x2628
1535D	Playoff Tournament data structures, dfs and similar, dp, implementation, trees	1800	x7474
1535C	Unstable String binary search, dp, greedy, implementation, strings, two pointers	1400	x16060
1534H	Lost Nodes constructive algorithms, dp, graphs, interactive, sortings, trees	3500	x143
1534G	A New Beginning data structures, dp, geometry, sortings	3300	x522
1534F2	Falling Sand (Hard Version) dfs and similar, dp, graphs, greedy	3000	x514
1534C	Little Alawn's Puzzle combinatorics, dp, dsu, graphs, math	1300	x12478
1533H	Submatrices *special problem, bitmasks, data structures, dp		x80
1531C	Симметричный амфитеатр *special problem, constructive algorithms, dp		x645
1530H	Turing's Award data structures, dp	3400	x140
1530F	Bingo bitmasks, combinatorics, dp, math, probabilities	2600	x750
1528E	Mashtali and Hagh Trees combinatorics, dp, trees	2900	x503