Problemset - Codeforces

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Codeforces Round 1134 (Div. 4)
43:30:54
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Problems

#	Name
1628D1	Game on Sum (Easy Version) combinatorics, dp, games, math	2100	x3903
1628C	Grid Xor constructive algorithms, greedy, implementation, interactive, math	2300	x3742
1628B	Peculiar Movie Preferences greedy, strings	1700	x12957
1628A	Meximum Array binary search, constructive algorithms, greedy, implementation, math, two pointers	1400	x17356
1627F	Not Splitting geometry, graphs, greedy, implementation, shortest paths	2700	x702
1627E	Not Escaping data structures, dp, implementation, shortest paths, two pointers	2200	x2961
1627D	Not Adding brute force, dp, math, number theory	1900	x9754
1627C	Not Assigning constructive algorithms, dfs and similar, number theory, trees	1400	x16676
1627B	Not Sitting games, greedy, sortings	1300	x17801
1627A	Not Shading constructive algorithms, implementation	800	x25072
1626F	A Random Code Problem combinatorics, dp, math, number theory, probabilities	2800	x948
1626E	Black and White Tree dfs and similar, greedy, trees	2400	x1991
1626D	Martial Arts Tournament binary search, brute force, greedy, math	2100	x4483
1626C	Monsters And Spells binary search, data structures, dp, greedy, implementation, math, two pointers	1700	x12121
1626B	Minor Reduction greedy, strings	1100	x24239
1626A	Equidistant Letters constructive algorithms, sortings	800	x31259
1625E2	Cats on the Upgrade (hard version) binary search, data structures, dfs and similar, graphs, trees	2800	x757
1625E1	Cats on the Upgrade (easy version) brute force, data structures, dfs and similar, divide and conquer, dp, graphs, trees	2500	x1221
1625D	Binary Spiders bitmasks, data structures, implementation, math, sortings, trees	2300	x2409
1625C	Road Optimization dp	1700	x14151
1625B	Elementary Particles brute force, greedy, sortings	1100	x17026
1625A	Ancient Civilization bitmasks, greedy, math	800	x18474
1624G	MinOr Tree bitmasks, dfs and similar, dsu, graphs, greedy	1900	x8119
1624F	Interacdive Problem binary search, constructive algorithms, interactive	2000	x3965
1624E	Masha-forgetful brute force, constructive algorithms, dp, hashing, implementation, strings	2000	x4730
1624D	Palindromes Coloring binary search, greedy, sortings, strings	1400	x19660
1624C	Division by Two and Permutation constructive algorithms, flows, graph matchings, greedy, math	1100	x27405
1624B	Make AP implementation, math	900	x58665
1624A	Plus One on the Subset math	800	x61969
1623E	Middle Duplication data structures, dfs and similar, greedy, strings, trees	2500	x1383
1623D	Robot Cleaner Revisit implementation, math, probabilities	2300	x1522
1623C	Balanced Stone Heaps binary search, greedy	1600	x14901
1623B	Game on Ranges brute force, dfs and similar, implementation, sortings	1100	x14816
1623A	Robot Cleaner brute force, implementation, math	800	x20904
1622F	Quadratic Set constructive algorithms, hashing, math, number theory	2900	x1003
1622E	Math Test bitmasks, brute force, greedy	2200	x2341
1622D	Shuffle combinatorics, math, two pointers	2000	x5070
1622C	Set or Decrease binary search, brute force, greedy, sortings	1600	x16207
1622B	Berland Music data structures, greedy, math, sortings	1000	x22614
1622A	Construct a Rectangle geometry, math	800	x32548
1621I	Two Sequences data structures, hashing, string suffix structures	3500	x154
1621H	Trains and Airplanes dfs and similar, graphs, shortest paths, trees	3500	x324
1621G	Weighted Increasing Subsequences data structures, dp, math	3200	x928
1621F	Strange Instructions data structures, greedy, implementation	2700	x669
1621E	New School binary search, data structures, dp, greedy, implementation, sortings	2300	x1973
1621D	The Winter Hike constructive algorithms, greedy, math	2100	x4475
1621C	Hidden Permutations dfs and similar, interactive, math	1700	x7609
1621B	Integers Shop data structures, greedy, implementation	1500	x14784
1621A	Stable Arrangement of Rooks constructive algorithms	800	x24918
1620G	Subsequences Galore bitmasks, combinatorics, dp	2400	x1238
1620F	Bipartite Array dp, greedy	2800	x846
1620E	Replace the Numbers constructive algorithms, data structures, dsu, implementation	1900	x10326
1620D	Exact Change brute force, constructive algorithms, greedy	2000	x4943
1620C	BA-String brute force, dp, greedy, implementation, math	1800	x7409
1620B	Triangles on a Rectangle geometry, greedy, math	1000	x35195
1620A	Equal or Not Equal constructive algorithms, dsu, implementation	800	x23546
1619H	Permutation and Queries brute force, data structures, divide and conquer, two pointers	2400	x1574
1619G	Unusual Minesweeper binary search, dfs and similar, dsu, greedy, sortings	2000	x2842
1619F	Let's Play the Hat? brute force, constructive algorithms, greedy, math	2000	x2414
1619E	MEX and Increments constructive algorithms, data structures, dp, greedy, implementation, math, sortings	1700	x10483
1619D	New Year's Problem binary search, greedy, sortings	1800	x8869
1619C	Wrong Addition implementation	1200	x23176
1619B	Squares and Cubes implementation, math	800	x33651
1619A	Square String? implementation, strings	800	x64925
1618G	Trader Problem data structures, dsu, greedy, sortings	2200	x2058
1618F	Reverse bitmasks, constructive algorithms, dfs and similar, implementation, math, strings	2000	x4863
1618E	Singers' Tour constructive algorithms, math	1700	x7907
1618D	Array and Operations dp, greedy, math	1300	x21324
1618C	Paint the Array math	1100	x35997
1618B	Missing Bigram implementation	800	x24068
1618A	Polycarp and Sums of Subsequences math, sortings	800	x35055
1617E	Christmas Chocolates dfs and similar, dp, games, graphs, implementation, math, number theory, shortest paths, trees	2700	x1093
1617D2	Too Many Impostors (hard version) constructive algorithms, implementation, interactive, math	2400	x2145
1617D1	Too Many Impostors (easy version) constructive algorithms, implementation, interactive	1800	x5297
1617C	Paprika and Permutation binary search, greedy, math, sortings	1300	x16236
1617B	GCD Problem brute force, constructive algorithms, math, number theory	900	x27780
1617A	Forbidden Subsequence constructive algorithms, greedy, sortings, strings	800	x17142
1616H	Keep XOR Low bitmasks, combinatorics, data structures, divide and conquer, dp, math	3000	x1431
1616G	Just Add an Edge dfs and similar, dp, graphs	3500	x475
1616F	Tricolor Triangles brute force, graphs, math, matrices	2900	x794
1616E	Lexicographically Small Enough brute force, data structures, greedy, strings	2200	x2798
1616D	Keep the Average High dp, greedy, math	2000	x5806
1616C	Representative Edges brute force, geometry, implementation, math	1500	x13373
1616B	Mirror in the String greedy, strings	1100	x20889
1616A	Integer Diversity implementation	800	x24152
1615H	Reindeer Games binary search, constructive algorithms, data structures, divide and conquer, flows, graphs, shortest paths	3000	x492
1615G	Maximum Adjacent Pairs constructive algorithms, graph matchings	3300	x179
1615F	LEGOndary Grandmaster combinatorics, dp, math	2800	x1226
1615E	Purple Crayon data structures, dfs and similar, games, graphs, greedy, math, sortings, trees	2400	x1785
1615D	X(or)-mas Tree bitmasks, dfs and similar, dsu, graphs, trees	2200	x2237
1615C	Menorah brute force, graphs, greedy, math	1600	x9408
1615B	And It's Non-Zero bitmasks, greedy, math	1300	x18383
1615A	Closing The Gap greedy, math	800	x21770
1614E	Divan and a Cottage binary search, data structures	2600	x1013
1614D2	Divan and Kostomuksha (hard version) dp, number theory	2300	x2908
1614D1	Divan and Kostomuksha (easy version) dp, number theory	2100	x4657
1614C	Divan and bitwise operations bitmasks, combinatorics, constructive algorithms, dp, math	1500	x11564
1614B	Divan and a New Project constructive algorithms, sortings	1000	x32691
1614A	Divan and a Store brute force, constructive algorithms, greedy	800	x24839
1613F	Tree Coloring combinatorics, divide and conquer, fft	2600	x933

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