Problemset - Codeforces

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Problems

#	Name
1542E1	Abnormal Permutation Pairs (easy version) combinatorics, dp, fft, math	2400	x1182
1527D	MEX Tree combinatorics, dfs and similar, implementation, math, trees	2400	x1827
1526E	Oolimry and Suffix Array combinatorics, constructive algorithms, math	2400	x1016
1523D	Love-Hate bitmasks, brute force, dp, probabilities	2400	x2082
1499F	Diameter Cuts combinatorics, dfs and similar, dp, trees	2400	x1244
1499E	Chaotic Merge combinatorics, dp, math, strings	2400	x1405
1494E	A-Z Graph constructive algorithms, data structures, graphs, hashing	2400	x1653
1491E	Fib-tree brute force, dfs and similar, divide and conquer, number theory, trees	2400	x2042
1485F	Copy or Prefix Sum combinatorics, data structures, dp, sortings	2400	x1862
1482F	Useful Edges graphs, shortest paths	2400	x1470
1473E	Minimum Path graphs, shortest paths	2400	x3304
1469E	A Bit Similar bitmasks, brute force, hashing, string suffix structures, strings, two pointers	2400	x1851
1463E	Plan of Lectures constructive algorithms, dfs and similar, dsu, graphs, implementation, sortings, trees	2400	x1444
1455E	Four Points brute force, constructive algorithms, flows, geometry, greedy, implementation, math, ternary search	2400	x1432
1450F	The Struggling Contestant constructive algorithms, greedy	2400	x1269
1443E	Long Permutation brute force, math, two pointers	2400	x1224
1442C	Graph Transpositions dfs and similar, graphs, greedy, shortest paths	2400	x1579
1436E	Complicated Computations binary search, data structures, two pointers	2400	x2113
1428F	Fruit Sequences binary search, data structures, divide and conquer, dp, two pointers	2400	x2162
1423J	Bubble Cup hypothesis bitmasks, constructive algorithms, dp, math	2400	x731
1418E	Expected Damage binary search, combinatorics, probabilities	2400	x1723
1408E	Avoid Rainbow Cycles data structures, dsu, graphs, greedy, sortings, trees	2400	x1874
1403A	The Potion of Great Power *special problem, 2-sat, binary search, data structures, graphs, interactive, sortings, two pointers	2400	x286
1401F	Reverse and Swap binary search, bitmasks, data structures	2400	x1523
1401E	Divide Square data structures, geometry, implementation, sortings	2400	x2166
1392F	Omkar and Landslide binary search, constructive algorithms, data structures, greedy, math	2400	x1940
1374F	Cyclic Shifts Sorting brute force, constructive algorithms, implementation, sortings	2400	x1256
1373F	Network Coverage binary search, constructive algorithms, data structures, greedy	2400	x1618
1370F1	The Hidden Pair (Easy Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2400	x1363
1369E	DeadLee data structures, dfs and similar, greedy, implementation, sortings	2400	x2014
1367F2	Flying Sort (Hard Version) binary search, data structures, dp, greedy, sortings, two pointers	2400	x1441
1358E	Are You Fired? constructive algorithms, data structures, greedy, implementation	2400	x2078
1348E	Phoenix and Berries brute force, dp, greedy, math	2400	x1981
1343F	Restore the Permutation by Sorted Segments brute force, constructive algorithms, data structures, greedy, implementation	2400	x1230
1340C	Nastya and Unexpected Guest dfs and similar, dp, graphs, shortest paths	2400	x2021
1333E	Road to 1600 brute force, constructive algorithms	2400	x1410
1329C	Drazil Likes Heap constructive algorithms, data structures, greedy, implementation	2400	x1502
1326E	Bombs data structures, two pointers	2400	x1969
1304F2	Animal Observation (hard version) data structures, dp, greedy	2400	x1314
1290C	Prefix Enlightenment dfs and similar, dsu, graphs	2400	x1533
1286C1	Madhouse (Easy version) brute force, constructive algorithms, interactive, math	2400	x1255
1282E	The Cake Is a Lie constructive algorithms, data structures, dfs and similar, graphs	2400	x992
1267A	Apprentice Learning Trajectory	2400	x813
1264C	Beautiful Mirrors with queries data structures, probabilities	2400	x1121
1263F	Economic Difficulties data structures, dfs and similar, dp, flows, graphs, trees	2400	x836
1260E	Tournament brute force, dp, greedy	2400	x1601
1257F	Make Them Similar bitmasks, brute force, hashing, meet-in-the-middle	2400	x1935
1252F	Regular Forestation hashing, trees	2400	x868
1251E2	Voting (Hard Version) binary search, data structures, greedy	2400	x2373
1244G	Running in Pairs constructive algorithms, greedy, math	2400	x1262
1242C	Sum Balance bitmasks, dfs and similar, dp, graphs	2400	x1468
1239D	Catowice City 2-sat, dfs and similar, graph matchings, graphs	2400	x1865
1237E	Balanced Binary Search Trees dp, math	2400	x1262
1227F2	Wrong Answer on test 233 (Hard Version) combinatorics, math	2400	x1458
1221F	Choose a Square binary search, data structures, sortings	2400	x974
1218D	Xor Spanning Tree divide and conquer, fft, graphs	2400	x313
1210D	Konrad and Company Evaluation graphs	2400	x1428
1205C	Palindromic Paths implementation, interactive	2400	x1115
1202E	You Are Given Some Strings... brute force, string suffix structures, strings	2400	x1782
1194F	Crossword Expert combinatorics, dp, number theory, probabilities, two pointers	2400	x965
1187D	Subarray Sorting data structures, sortings	2400	x2450
1186F	Vus the Cossack and a Graph dfs and similar, graphs, greedy, implementation	2400	x749
1184E3	Daleks' Invasion (hard) data structures, dsu, graphs, trees	2400	x492
1182D	Complete Mirror constructive algorithms, dfs and similar, dp, hashing, implementation, trees	2400	x802
1174F	Ehab and the Big Finale constructive algorithms, divide and conquer, graphs, implementation, interactive, trees	2400	x1439
1166F	Vicky's Delivery Service data structures, dsu, graphs, hashing	2400	x685
1163E	Magical Permutation bitmasks, brute force, constructive algorithms, data structures, graphs, math	2400	x646
1152E	Neko and Flashback constructive algorithms, dfs and similar, graphs	2400	x935
1147D	Palindrome XOR dfs and similar, graphs	2400	x727
1146E	Hot is Cold bitmasks, data structures, divide and conquer, implementation	2400	x822
1144G	Two Merged Sequences dp, greedy	2400	x1825
1142C	U2 geometry	2400	x1299
1139E	Maximize Mex flows, graph matchings, graphs	2400	x1641
1137D	Cooperative Game constructive algorithms, interactive, number theory	2400	x1465
1132G	Greedy Subsequences data structures, dp, trees	2400	x958
1129C	Morse Code binary search, data structures, dp, hashing, sortings, string suffix structures, strings	2400	x896
1114F	Please, another Queries on Array? bitmasks, data structures, divide and conquer, math, number theory	2400	x1810
1109D	Sasha and Interesting Fact from Graph Theory brute force, combinatorics, dp, math, trees	2400	x1270
1107G	Vasya and Maximum Profit binary search, constructive algorithms, data structures, dp, dsu	2400	x988
1107E	Vasya and Binary String dp	2400	x2145
1106F	Lunar New Year and a Recursive Sequence math, matrices, number theory	2400	x949
1101F	Trucks and Cities binary search, dp	2400	x1257
1099F	Cookies binary search, data structures, dfs and similar, dp, games, trees	2400	x907
1098C	Construct a tree binary search, constructive algorithms, dfs and similar, graphs, greedy, trees	2400	x865
1096G	Lucky Tickets divide and conquer, dp, fft	2400	x1372
1093F	Vasya and Array dp	2400	x970
1093E	Intersection of Permutations data structures	2400	x1483
1091E	New Year and the Acquaintance Estimation binary search, data structures, graphs, greedy, implementation, math, sortings	2400	x976
1090C	New Year Presents constructive algorithms, data structures	2400	x478
1089M	Minegraphed constructive algorithms, graphs	2400	x585
1089K	King Kog's Reception data structures	2400	x1081
1088E	Ehab and a component choosing problem dp, greedy, math, trees	2400	x1398
1083E	The Fair Nut and Rectangles data structures, dp, geometry	2400	x3800
1082G	Petya and Graph flows, graphs	2400	x1924
1080F	Katya and Segments Sets data structures, interactive, sortings	2400	x669
1080E	Sonya and Matrix Beauty strings	2400	x887
1070I	Privatization of Roads in Berland flows, graph matchings, graphs	2400	x532
1070B	Berkomnadzor data structures, greedy	2400	x469
1061F	Lost Root interactive, probabilities	2400	x684
1059E	Split the Tree binary search, data structures, dp, greedy, trees	2400	x1352