Problemset - Codeforces

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Problems

#	Name
1630C	Paint the Middle dp, greedy, sortings, two pointers	2200	x2962
1628D2	Game on Sum (Hard Version) combinatorics, dp, games, math	2400	x2169
1628D1	Game on Sum (Easy Version) combinatorics, dp, games, math	2100	x3226
1627E	Not Escaping data structures, dp, implementation, shortest paths, two pointers	2200	x2416
1627D	Not Adding brute force, dp, math, number theory	1900	x8381
1626F	A Random Code Problem combinatorics, dp, math, number theory, probabilities	2800	x738
1626C	Monsters And Spells binary search, data structures, dp, greedy, implementation, math, two pointers	1700	x10984
1625E1	Cats on the Upgrade (easy version) brute force, data structures, dfs and similar, divide and conquer, dp, graphs, trees	2500	x1052
1625C	Road Optimization dp	1700	x10817
1624E	Masha-forgetful brute force, constructive algorithms, dp, hashing, implementation, strings	2000	x4150
1621G	Weighted Increasing Subsequences data structures, dp, math	3200	x657
1621E	New School binary search, data structures, dp, greedy, implementation, sortings	2300	x1769
1620G	Subsequences Galore bitmasks, combinatorics, dp	2400	x916
1620F	Bipartite Array dp, greedy	2800	x621
1620C	BA-String brute force, dp, greedy, implementation, math	1800	x6617
1619E	MEX and Increments constructive algorithms, data structures, dp, greedy, implementation, math, sortings	1700	x9281
1618D	Array and Operations dp, greedy, math	1300	x19091
1617E	Christmas Chocolates dfs and similar, dp, games, graphs, implementation, math, number theory, shortest paths, trees	2700	x883
1616H	Keep XOR Low bitmasks, combinatorics, data structures, divide and conquer, dp, math	3000	x993
1616G	Just Add an Edge dfs and similar, dp, graphs	3500	x284
1616D	Keep the Average High dp, greedy, math	2000	x4937
1615F	LEGOndary Grandmaster combinatorics, dp, math	2800	x896
1614D2	Divan and Kostomuksha (hard version) dp, number theory	2300	x2392
1614D1	Divan and Kostomuksha (easy version) dp, number theory	2100	x3968
1614C	Divan and bitwise operations bitmasks, combinatorics, constructive algorithms, dp, math	1500	x10319
1613D	MEX Sequences dp, math	1900	x4744
1612F	Armor and Weapons brute force, dp, greedy, shortest paths	2800	x619
1612E	Messages brute force, dp, greedy, probabilities, sortings	2000	x2536
1611E2	Escape The Maze (hard version) dfs and similar, dp, greedy, shortest paths, trees	1900	x3853
1610D	Not Quite Lee combinatorics, dp, math, number theory	2000	x2735
1609E	William The Oblivious bitmasks, data structures, dp, matrices	2400	x2137
1609C	Complex Market Analysis binary search, dp, implementation, number theory, schedules, two pointers	1400	x9803
1608F	MEX counting combinatorics, dp, implementation	3200	x610
1608C	Game Master data structures, dfs and similar, dp, graphs, greedy, two pointers	1700	x6739
1606F	Tree Queries brute force, dp, trees	2800	x566
1606E	Arena combinatorics, dp, math	2100	x3581
1605F	PalindORme combinatorics, dp	2900	x307
1603F	October 18, 2017 combinatorics, dp, implementation, math	2700	x287
1603E	A Perfect Problem combinatorics, dp, math	3200	x482
1603D	Artistic Partition divide and conquer, dp, number theory	3000	x688
1603C	Extreme Extension dp, greedy, math, number theory	2300	x2061
1601E	Phys Ed Online data structures, dp, greedy	2900	x486
1601D	Difficult Mountain data structures, dp, greedy, sortings	2700	x1480
1601C	Optimal Insertion data structures, divide and conquer, dp, greedy, sortings	2300	x2056
1601B	Frog Traveler data structures, dfs and similar, dp, graphs, shortest paths, two pointers	1900	x5025
1598F	RBS binary search, bitmasks, brute force, data structures, dp	2400	x1449
1598E	Staircases brute force, combinatorics, data structures, dfs and similar, dp, implementation, math	2100	x2334
1598C	Delete Two Elements data structures, dp, implementation, math, two pointers	1200	x21092
1598A	Computer Game brute force, dfs and similar, dp, implementation	800	x23559
1594E2	Rubik's Cube Coloring (hard version) brute force, dp, implementation, math, trees	2300	x1494
1594D	The Number of Imposters constructive algorithms, dfs and similar, dp, dsu, graphs	1700	x7600
1593G	Changing Brackets constructive algorithms, data structures, dp, greedy	2200	x1726
1593F	Red-Black Number dfs and similar, dp, implementation, math, meet-in-the-middle	2100	x2468
1593B	Make it Divisible by 25 dfs and similar, dp, greedy, math, math	900	x27704
1592C	Bakry and Partitioning bitmasks, constructive algorithms, dfs and similar, dp, graphs, trees	1700	x8083
1585G	Poachers dp, games, graphs, trees	2500	x188
1585F	Non-equal Neighbours combinatorics, dp, math	2400	x1258
1584F	Strange LCS bitmasks, dp, graphs, greedy, strings	2600	x987
1583C	Omkar and Determination data structures, dp	1700	x6974
1582F2	Korney Korneevich and XOR (hard version) binary search, brute force, dp, greedy, two pointers	2400	x1851
1582F1	Korney Korneevich and XOR (easy version) bitmasks, dp, greedy	1800	x5693
1582E	Pchelyonok and Segments binary search, data structures, dp, greedy, math	2000	x3792
1580D	Subsequence brute force, divide and conquer, dp, greedy, trees	2900	x919
1580B	Mathematics Curriculum brute force, combinatorics, dp, trees	2600	x1057
1580A	Portal brute force, data structures, dp, greedy, implementation	1700	x3698
1579G	Minimal Coverage dp	2200	x2404
1575L	Longest Array Deconstruction data structures, divide and conquer, dp, sortings	2100	x1432
1575H	Holiday Wall Ornaments dp, strings	2200	x629
1575D	Divisible by Twenty-Five brute force, dfs and similar, dp	1800	x2602
1574F	Occurrences combinatorics, dfs and similar, dp, dsu, fft, graphs	2700	x632
1572E	Polygon binary search, dp, geometry	3000	x298
1572C	Paint dp, greedy	2700	x1502
1572A	Book binary search, brute force, data structures, dp, graphs, implementation, sortings	1800	x9125
1571G	A Battle Against a Dragon *special problem, data structures, dp	2500	x76
1571F	Kotlinforces *special problem, constructive algorithms, dp	2000	x202
1571E	Fix the String *special problem, bitmasks, dp, greedy	1700	x340
1569F	Palindromic Hamiltonian Path brute force, dfs and similar, dp, graphs, hashing	3000	x262
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x12238
1566H	Xor-quiz constructive algorithms, dp, interactive, math, number theory	3200	x129
1566F	Points Movement data structures, dp, greedy, implementation, sortings	2600	x961
1566E	Buds Re-hanging constructive algorithms, dfs and similar, dp, greedy, trees	2000	x4167
1566C	MAX-MEX Cut bitmasks, constructive algorithms, dp, greedy	1000	x17685
1566B	MIN-MEX Cut bitmasks, constructive algorithms, dp, greedy	800	x19756
1562E	Rescue Niwen! dp, greedy, string suffix structures, strings	2500	x1424
1562D1	Two Hundred Twenty One (easy version) data structures, dp, math	1700	x6373
1561D1	Up the Strip (simplified version) brute force, data structures, dp, math, number theory	1700	x5654
1560F2	Nearest Beautiful Number (hard version) bitmasks, brute force, constructive algorithms, dfs and similar, dp, greedy	2100	x4425
1559E	Mocha and Stars combinatorics, dp, fft, math, number theory	2200	x2332
1559B	Mocha and Red and Blue dp, greedy	900	x22660
1558B	Up the Strip brute force, dp, math, number theory, two pointers	1900	x4831
1557D	Ezzat and Grid data structures, dp, greedy	2200	x2583
1557C	Moamen and XOR bitmasks, combinatorics, dp, math, matrices	1700	x8660
1556F	Sports Betting bitmasks, combinatorics, dp, graphs, math, probabilities	2500	x1264
1556E	Equilibrium data structures, dp, greedy	2200	x2733
1555D	Say No to Palindromes brute force, constructive algorithms, dp, strings	1600	x12529
1555C	Coin Rows brute force, constructive algorithms, dp, implementation	1300	x21969
1554E	You dfs and similar, dp, math, number theory	2600	x1237
1553I	Stairs combinatorics, divide and conquer, dp, fft, math	3400	x205
1553D	Backspace dp, greedy, strings, two pointers	1500	x13843
1553C	Penalty bitmasks, brute force, dp, greedy	1200	x18017