Problemset - Codeforces

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Codeforces Round 986 (Div. 2)
08:52:12
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Problems

#	Name
1620F	Bipartite Array dp, greedy	2800	x617
1620C	BA-String brute force, dp, greedy, implementation, math	1800	x6593
1619E	MEX and Increments constructive algorithms, data structures, dp, greedy, implementation, math, sortings	1700	x9263
1618D	Array and Operations dp, greedy, math	1300	x19041
1617E	Christmas Chocolates dfs and similar, dp, games, graphs, implementation, math, number theory, shortest paths, trees	2700	x880
1616H	Keep XOR Low bitmasks, combinatorics, data structures, divide and conquer, dp, math	3000	x984
1616G	Just Add an Edge dfs and similar, dp, graphs	3500	x282
1616D	Keep the Average High dp, greedy, math	2000	x4927
1615F	LEGOndary Grandmaster combinatorics, dp, math	2800	x885
1614D2	Divan and Kostomuksha (hard version) dp, number theory	2300	x2382
1614D1	Divan and Kostomuksha (easy version) dp, number theory	2100	x3953
1614C	Divan and bitwise operations bitmasks, combinatorics, constructive algorithms, dp, math	1500	x10309
1613D	MEX Sequences dp, math	1900	x4727
1612F	Armor and Weapons brute force, dp, greedy, shortest paths	2800	x613
1612E	Messages brute force, dp, greedy, probabilities, sortings	2000	x2531
1611E2	Escape The Maze (hard version) dfs and similar, dp, greedy, shortest paths, trees	1900	x3847
1610D	Not Quite Lee combinatorics, dp, math, number theory	2000	x2722
1609E	William The Oblivious bitmasks, data structures, dp, matrices	2400	x2132
1609C	Complex Market Analysis binary search, dp, implementation, number theory, schedules, two pointers	1400	x9789
1608F	MEX counting combinatorics, dp, implementation	3200	x608
1608C	Game Master data structures, dfs and similar, dp, graphs, greedy, two pointers	1700	x6715
1606F	Tree Queries brute force, dp, trees	2800	x562
1606E	Arena combinatorics, dp, math	2100	x3567
1605F	PalindORme combinatorics, dp	2900	x306
1603F	October 18, 2017 combinatorics, dp, implementation, math	2700	x283
1603E	A Perfect Problem combinatorics, dp, math	3200	x440
1603D	Artistic Partition divide and conquer, dp, number theory	3000	x686
1603C	Extreme Extension dp, greedy, math, number theory	2300	x2049
1601E	Phys Ed Online data structures, dp, greedy	2900	x483
1601D	Difficult Mountain data structures, dp, greedy, sortings	2700	x1473
1601C	Optimal Insertion data structures, divide and conquer, dp, greedy, sortings	2300	x2047
1601B	Frog Traveler data structures, dfs and similar, dp, graphs, shortest paths, two pointers	1900	x4996
1598F	RBS binary search, bitmasks, brute force, data structures, dp	2400	x1444
1598E	Staircases brute force, combinatorics, data structures, dfs and similar, dp, implementation, math	2100	x2325
1598C	Delete Two Elements data structures, dp, implementation, math, two pointers	1200	x21046
1598A	Computer Game brute force, dfs and similar, dp, implementation	800	x23495
1594E2	Rubik's Cube Coloring (hard version) brute force, dp, implementation, math, trees	2300	x1493
1594D	The Number of Imposters constructive algorithms, dfs and similar, dp, dsu, graphs	1700	x7571
1593G	Changing Brackets constructive algorithms, data structures, dp, greedy	2200	x1710
1593F	Red-Black Number dfs and similar, dp, implementation, math, meet-in-the-middle	2100	x2460
1593B	Make it Divisible by 25 dfs and similar, dp, greedy, math, math	900	x27567
1592C	Bakry and Partitioning bitmasks, constructive algorithms, dfs and similar, dp, graphs, trees	1700	x8067
1585G	Poachers dp, games, graphs, trees	2500	x185
1585F	Non-equal Neighbours combinatorics, dp, math	2400	x1256
1584F	Strange LCS bitmasks, dp, graphs, greedy, strings	2600	x984
1583C	Omkar and Determination data structures, dp	1700	x6970
1582F2	Korney Korneevich and XOR (hard version) binary search, brute force, dp, greedy, two pointers	2400	x1838
1582F1	Korney Korneevich and XOR (easy version) bitmasks, dp, greedy	1800	x5669
1582E	Pchelyonok and Segments binary search, data structures, dp, greedy, math	2000	x3780
1580D	Subsequence brute force, divide and conquer, dp, greedy, trees	2900	x900
1580B	Mathematics Curriculum brute force, combinatorics, dp, trees	2600	x1056
1580A	Portal brute force, data structures, dp, greedy, implementation	1700	x3669
1579G	Minimal Coverage dp	2200	x2397
1575L	Longest Array Deconstruction data structures, divide and conquer, dp, sortings	2100	x1426
1575H	Holiday Wall Ornaments dp, strings	2200	x627
1575D	Divisible by Twenty-Five brute force, dfs and similar, dp	1800	x2566
1574F	Occurrences combinatorics, dfs and similar, dp, dsu, fft, graphs	2700	x627
1572E	Polygon binary search, dp, geometry	3000	x298
1572C	Paint dp, greedy	2700	x1498
1572A	Book binary search, brute force, data structures, dp, graphs, implementation, sortings	1800	x9109
1571G	A Battle Against a Dragon *special problem, data structures, dp	2500	x76
1571F	Kotlinforces *special problem, constructive algorithms, dp	2000	x189
1571E	Fix the String *special problem, bitmasks, dp, greedy	1700	x340
1569F	Palindromic Hamiltonian Path brute force, dfs and similar, dp, graphs, hashing	3000	x259
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x12226
1566H	Xor-quiz constructive algorithms, dp, interactive, math, number theory	3200	x129
1566F	Points Movement data structures, dp, greedy, implementation, sortings	2600	x958
1566E	Buds Re-hanging constructive algorithms, dfs and similar, dp, greedy, trees	2000	x4159
1566C	MAX-MEX Cut bitmasks, constructive algorithms, dp, greedy	1000	x17646
1566B	MIN-MEX Cut bitmasks, constructive algorithms, dp, greedy	800	x19703
1562E	Rescue Niwen! dp, greedy, string suffix structures, strings	2500	x1413
1562D1	Two Hundred Twenty One (easy version) data structures, dp, math	1700	x6363
1561D1	Up the Strip (simplified version) brute force, data structures, dp, math, number theory	1700	x5637
1560F2	Nearest Beautiful Number (hard version) bitmasks, brute force, constructive algorithms, dfs and similar, dp, greedy	2100	x4419
1559E	Mocha and Stars combinatorics, dp, fft, math, number theory	2200	x2324
1559B	Mocha and Red and Blue dp, greedy	900	x22630
1558B	Up the Strip brute force, dp, math, number theory, two pointers	1900	x4822
1557D	Ezzat and Grid data structures, dp, greedy	2200	x2569
1557C	Moamen and XOR bitmasks, combinatorics, dp, math, matrices	1700	x8649
1556F	Sports Betting bitmasks, combinatorics, dp, graphs, math, probabilities	2500	x1255
1556E	Equilibrium data structures, dp, greedy	2200	x2727
1555D	Say No to Palindromes brute force, constructive algorithms, dp, strings	1600	x12489
1555C	Coin Rows brute force, constructive algorithms, dp, implementation	1300	x21898
1554E	You dfs and similar, dp, math, number theory	2600	x1233
1553I	Stairs combinatorics, divide and conquer, dp, fft, math	3400	x205
1553D	Backspace dp, greedy, strings, two pointers	1500	x13819
1553C	Penalty bitmasks, brute force, dp, greedy	1200	x17996
1553B	Reverse String brute force, dp, hashing, implementation, strings	1300	x14217
1552F	Telepanting binary search, data structures, dp, sortings	2200	x2965
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x7068
1551F	Equidistant Vertices brute force, combinatorics, dfs and similar, dp, trees	2200	x1852
1551E	Fixed Points binary search, brute force, dp	2000	x3968
1550F	Jumping Around binary search, data structures, divide and conquer, dp, dsu, graphs, shortest paths	2700	x679
1550E	Stringforces binary search, bitmasks, brute force, dp, strings, two pointers	2500	x1545
1549B	Gregor and the Pawn Game dfs and similar, dp, flows, graph matchings, graphs, greedy, implementation	800	x24520
1548C	The Three Little Pigs combinatorics, dp, fft, math	2500	x1841
1547G	How Many Paths? dfs and similar, dp, graphs, trees	2100	x3025
1547E	Air Conditioners data structures, dp, implementation, shortest paths, sortings, two pointers	1500	x14559
1545F	AquaMoon and Potatoes brute force, data structures, dp	3500	x110
1545E2	AquaMoon and Time Stop (hard version) data structures, dp	3500	x88