Problemset - Codeforces

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Problems

#	Name
1641A	Great Sequence brute force, greedy, sortings	1200	x17977
1638F	Two Posters brute force, data structures, greedy, two pointers	3200	x227
1638D	Big Brush constructive algorithms, data structures, greedy, implementation	2000	x4236
1638A	Reverse constructive algorithms, greedy, math	800	x21517
1637H	Minimize Inversions Number data structures, greedy, math, sortings	3500	x326
1637G	Birthday constructive algorithms, greedy, math	3000	x519
1637F	Towers constructive algorithms, dfs and similar, dp, greedy, trees	2500	x1797
1637D	Yet Another Minimization Problem dp, greedy, math	1800	x7820
1637C	Andrew and Stones greedy, implementation	1200	x17824
1637B	MEX and Array brute force, dp, greedy, math	1100	x14873
1635F	Closest Pair data structures, greedy	2800	x1140
1635E	Cars 2-sat, constructive algorithms, dfs and similar, dsu, graphs, greedy, sortings	2200	x2265
1635C	Differential Sorting constructive algorithms, greedy	1200	x17873
1635B	Avoid Local Maximums greedy	800	x17960
1635A	Min Or Sum bitmasks, greedy	800	x23066
1634A	Reverse and Concatenate greedy, strings	800	x23955
1633E	Spanning Tree Queries binary search, data structures, dfs and similar, dsu, graphs, greedy, math, sortings, trees	2400	x1554
1633D	Make Them Equal dp, greedy	1600	x14273
1633B	Minority greedy	800	x27902
1632D	New Year Concert binary search, data structures, greedy, math, number theory, two pointers	2000	x4738
1631B	Fun with Even Subarrays dp, greedy	1100	x20596
1631A	Min Max Swap greedy	800	x29592
1630D	Flipping Range constructive algorithms, dp, greedy, number theory	2400	x1665
1630C	Paint the Middle dp, greedy, sortings, two pointers	2200	x2962
1630B	Range and Partition binary search, constructive algorithms, data structures, greedy, two pointers	1800	x5797
1629B	GCD Arrays greedy, math, number theory	800	x23567
1629A	Download More RAM brute force, greedy, sortings	800	x29354
1628C	Grid Xor constructive algorithms, greedy, implementation, interactive, math	2300	x3213
1628B	Peculiar Movie Preferences greedy, strings	1700	x11694
1628A	Meximum Array binary search, constructive algorithms, greedy, implementation, math, two pointers	1400	x15743
1627F	Not Splitting geometry, graphs, greedy, implementation, shortest paths	2700	x594
1627B	Not Sitting games, greedy, sortings	1300	x16696
1626E	Black and White Tree dfs and similar, greedy, trees	2400	x1594
1626D	Martial Arts Tournament binary search, brute force, greedy, math	2100	x3938
1626C	Monsters And Spells binary search, data structures, dp, greedy, implementation, math, two pointers	1700	x10986
1626B	Minor Reduction greedy, strings	1100	x22904
1625B	Elementary Particles brute force, greedy, sortings	1100	x16130
1625A	Ancient Civilization bitmasks, greedy, math	800	x17297
1624G	MinOr Tree bitmasks, dfs and similar, dsu, graphs, greedy	1900	x6026
1624D	Palindromes Coloring binary search, greedy, sortings, strings	1400	x17174
1624C	Division by Two and Permutation constructive algorithms, flows, graph matchings, greedy, math	1100	x25000
1623E	Middle Duplication data structures, dfs and similar, greedy, strings, trees	2500	x1124
1623C	Balanced Stone Heaps binary search, greedy	1600	x12286
1622E	Math Test bitmasks, brute force, greedy	2200	x1919
1622C	Set or Decrease binary search, brute force, greedy, sortings	1600	x13199
1622B	Berland Music data structures, greedy, math, sortings	1000	x21168
1621F	Strange Instructions data structures, greedy, implementation	2700	x555
1621E	New School binary search, data structures, dp, greedy, implementation, sortings	2300	x1769
1621D	The Winter Hike constructive algorithms, greedy, math	2100	x4094
1621B	Integers Shop data structures, greedy, implementation	1500	x13483
1620F	Bipartite Array dp, greedy	2800	x621
1620D	Exact Change brute force, constructive algorithms, greedy	2000	x4241
1620C	BA-String brute force, dp, greedy, implementation, math	1800	x6617
1620B	Triangles on a Rectangle geometry, greedy, math	1000	x21580
1619G	Unusual Minesweeper binary search, dfs and similar, dsu, greedy, sortings	2000	x2429
1619F	Let's Play the Hat? brute force, constructive algorithms, greedy, math	2000	x2118
1619E	MEX and Increments constructive algorithms, data structures, dp, greedy, implementation, math, sortings	1700	x9281
1619D	New Year's Problem binary search, greedy, sortings	1800	x7638
1618G	Trader Problem data structures, dsu, greedy, sortings	2200	x1616
1618D	Array and Operations dp, greedy, math	1300	x19091
1617C	Paprika and Permutation binary search, greedy, math, sortings	1300	x15071
1617A	Forbidden Subsequence constructive algorithms, greedy, sortings, strings	800	x16309
1616E	Lexicographically Small Enough brute force, data structures, greedy, strings	2200	x2507
1616D	Keep the Average High dp, greedy, math	2000	x4937
1616B	Mirror in the String greedy, strings	1100	x19750
1615E	Purple Crayon data structures, dfs and similar, games, graphs, greedy, math, sortings, trees	2400	x1501
1615C	Menorah brute force, graphs, greedy, math	1600	x8421
1615B	And It's Non-Zero bitmasks, greedy, math	1300	x16105
1615A	Closing The Gap greedy, math	800	x20820
1614A	Divan and a Store brute force, constructive algorithms, greedy	800	x23514
1613B	Absent Remainder greedy, implementation, sortings	1000	x21807
1612G	Max Sum Array combinatorics, constructive algorithms, greedy, sortings	2500	x862
1612F	Armor and Weapons brute force, dp, greedy, shortest paths	2800	x619
1612E	Messages brute force, dp, greedy, probabilities, sortings	2000	x2536
1612B	Special Permutation constructive algorithms, greedy	900	x17300
1611G	Robot and Candies data structures, graph matchings, greedy	2500	x649
1611E2	Escape The Maze (hard version) dfs and similar, dp, greedy, shortest paths, trees	1900	x3853
1611E1	Escape The Maze (easy version) dfs and similar, greedy, shortest paths, trees, two pointers	1700	x7378
1610H	Squid Game data structures, dfs and similar, greedy, trees	3100	x503
1610G	AmShZ Wins a Bet data structures, greedy, hashing	3300	x466
1610E	AmShZ and G.O.A.T. binary search, brute force, greedy, implementation, math	2300	x1707
1610C	Keshi Is Throwing a Party binary search, greedy	1600	x11740
1610B	Kalindrome Array greedy, two pointers	1100	x16194
1609G	A Stroll Around the Matrix data structures, greedy, math	3000	x405
1609D	Social Network dsu, graphs, greedy, implementation, trees	1600	x7357
1609A	Divide and Multiply greedy, implementation, math, number theory	900	x17193
1608C	Game Master data structures, dfs and similar, dp, graphs, greedy, two pointers	1700	x6739
1608B	Build the Permutation constructive algorithms, greedy	1200	x11784
1607H	Banquet Preparations 2 greedy, sortings, two pointers	2200	x1255
1607G	Banquet Preparations 1 greedy	2200	x1574
1607D	Blue-Red Permutation greedy, math, sortings	1300	x16959
1606C	Banknotes greedy, number theory	1400	x14248
1606B	Update Files greedy, implementation, math	1100	x18726
1605E	Array Equalizer binary search, greedy, implementation, math, number theory, sortings, two pointers	2400	x1058
1605D	Treelabeling bitmasks, constructive algorithms, dfs and similar, games, greedy, implementation, trees	2100	x2961
1605C	Dominant Character brute force, greedy, implementation, strings	1400	x17130
1605B	Reverse Sort greedy, sortings	1000	x18139
1604A	Era greedy	800	x21610
1603C	Extreme Extension dp, greedy, math, number theory	2300	x2061
1601E	Phys Ed Online data structures, dp, greedy	2900	x486