Problemset - Codeforces

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Problems

#	Name
1628D2	Game on Sum (Hard Version) combinatorics, dp, games, math	2400	x1981
1392F	Omkar and Landslide binary search, constructive algorithms, data structures, greedy, math	2400	x1941
959F	Mahmoud and Ehab and yet another xor task bitmasks, dp, math, matrices	2400	x1940
1527D	MEX Tree combinatorics, dfs and similar, implementation, math, trees	2400	x1831
1114F	Please, another Queries on Array? bitmasks, data structures, divide and conquer, math, number theory	2400	x1811
24D	Broken robot dp, math, probabilities	2400	x1800
1832D2	Red-Blue Operations (Hard Version) binary search, constructive algorithms, greedy, implementation, math	2400	x1797
1617D2	Too Many Impostors (hard version) constructive algorithms, implementation, interactive, math	2400	x1706
1706D2	Chopping Carrots (Hard Version) brute force, constructive algorithms, data structures, dp, greedy, math, number theory, two pointers	2400	x1653
1592E	Bored Bakry bitmasks, greedy, math, two pointers	2400	x1544
1830C	Hyperregular Bracket Strings combinatorics, greedy, hashing, math, number theory, sortings	2400	x1528
1718C	Tonya and Burenka-179 data structures, greedy, math, number theory	2400	x1519
1667C	Half Queen Cover constructive algorithms, math	2400	x1516
912E	Prime Gift binary search, dfs and similar, math, meet-in-the-middle, number theory, two pointers	2400	x1487
1227F2	Wrong Answer on test 233 (Hard Version) combinatorics, math	2400	x1461
1633E	Spanning Tree Queries binary search, data structures, dfs and similar, dsu, graphs, greedy, math, sortings, trees	2400	x1458
1852C	Ina of the Mountain data structures, dp, greedy, math	2400	x1457
1848F	Vika and Wiki binary search, bitmasks, combinatorics, divide and conquer, dp, math	2400	x1451
1455E	Four Points brute force, constructive algorithms, flows, geometry, greedy, implementation, math, ternary search	2400	x1434
1499E	Chaotic Merge combinatorics, dp, math, strings	2400	x1406
1615E	Purple Crayon data structures, dfs and similar, games, graphs, greedy, math, sortings, trees	2400	x1405
1088E	Ehab and a component choosing problem dp, greedy, math, trees	2400	x1400
1819C	The Fox and the Complete Tree Traversal constructive algorithms, dp, implementation, math, trees	2400	x1396
1036F	Relatively Prime Powers combinatorics, math, number theory	2400	x1362
1726E	Almost Perfect combinatorics, fft, math	2400	x1356
1608D	Dominoes combinatorics, fft, graphs, math, number theory	2400	x1348
1886E	I Wanna be the Team Leader bitmasks, constructive algorithms, dp, greedy, math, sortings, two pointers	2400	x1335
1780E	Josuke and Complete Graph binary search, brute force, data structures, math, number theory	2400	x1305
1770E	Koxia and Tree combinatorics, dfs and similar, dp, dsu, math, probabilities, trees	2400	x1296
626E	Simple Skewness binary search, math, ternary search	2400	x1296
698C	LRU bitmasks, dp, math, probabilities	2400	x1280
1109D	Sasha and Interesting Fact from Graph Theory brute force, combinatorics, dp, math, trees	2400	x1270
1594F	Ideal Farm constructive algorithms, math	2400	x1265
1237E	Balanced Binary Search Trees dp, math	2400	x1263
1244G	Running in Pairs constructive algorithms, greedy, math	2400	x1262
1286C1	Madhouse (Easy version) brute force, constructive algorithms, interactive, math	2400	x1260
1943D1	Counting Is Fun (Easy Version) brute force, combinatorics, dp, math	2400	x1249
1909E	Multiple Lamps bitmasks, brute force, constructive algorithms, math, number theory	2400	x1247
1443E	Long Permutation brute force, math, two pointers	2400	x1224
1542E1	Abnormal Permutation Pairs (easy version) combinatorics, dp, fft, math	2400	x1186
593D	Happy Tree Party data structures, dfs and similar, graphs, math, trees	2400	x1178
1935E	Distance Learning Courses in MAC bitmasks, brute force, data structures, greedy, math	2400	x1169
1585F	Non-equal Neighbours combinatorics, dp, math	2400	x1149
1697E	Coloring brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math	2400	x1137
1680D	Dog Walking brute force, greedy, math	2400	x1114
1868C	Travel Plan combinatorics, dp, implementation, math, trees	2400	x1075
641D	Little Artem and Random Variable dp, implementation, math, probabilities	2400	x1047
1924C	Fractal Origami geometry, math, matrices	2400	x1044
1526E	Oolimry and Suffix Array combinatorics, constructive algorithms, math	2400	x1019
1605E	Array Equalizer binary search, greedy, implementation, math, number theory, sortings, two pointers	2400	x997
1957E	Carousel of Combinations brute force, combinatorics, dp, math, number theory	2400	x984
1930E	2..3...4.... Wonderful! Wonderful! combinatorics, dp, math	2400	x984
1091E	New Year and the Acquaintance Estimation binary search, data structures, graphs, greedy, implementation, math, sortings	2400	x976
886E	Maximum Element combinatorics, dp, math	2400	x976
621D	Rat Kwesh and Cheese brute force, constructive algorithms, math	2400	x961
1106F	Lunar New Year and a Recursive Sequence math, matrices, number theory	2400	x949
1007B	Pave the Parallelepiped bitmasks, brute force, combinatorics, math, number theory	2400	x938
1817C	Similar Polynomials combinatorics, math	2400	x926
416D	Population Size greedy, implementation, math	2400	x902
1902F	Trees and XOR Queries Again data structures, dfs and similar, divide and conquer, graphs, implementation, math, trees	2400	x896
676E	The Last Fight Between Human and AI math	2400	x884
733E	Sleep in Class constructive algorithms, data structures, math, two pointers	2400	x863
303C	Minimum Modular brute force, graphs, math, number theory	2400	x854
1905E	One-X combinatorics, dfs and similar, dp, math, trees	2400	x853
226C	Anniversary data structures, implementation, math, matrices, number theory	2400	x844
83D	Numbers dp, math, number theory	2400	x821
1809E	Two Tanks binary search, dp, implementation, math	2400	x792
417E	Square Table constructive algorithms, math, probabilities	2400	x779
1673F	Anti-Theft Road Planning bitmasks, constructive algorithms, divide and conquer, greedy, interactive, math	2400	x768
26D	Tickets combinatorics, math, probabilities	2400	x747
837F	Prefix Sums binary search, brute force, combinatorics, math, matrices	2400	x738
1423J	Bubble Cup hypothesis bitmasks, constructive algorithms, dp, math	2400	x735
266D	BerDonalds graphs, math, shortest paths	2400	x711
1866M	Mighty Rock Tower brute force, combinatorics, dp, math, probabilities	2400	x688
441E	Valera and Number bitmasks, dp, math, probabilities	2400	x673
1780G	Delicious Dessert binary search, dsu, hashing, math, number theory, string suffix structures	2400	x671
1866L	Lihmuf Balling binary search, brute force, math	2400	x651
1163E	Magical Permutation bitmasks, brute force, constructive algorithms, data structures, graphs, math	2400	x646
625D	Finals in arithmetic constructive algorithms, implementation, math	2400	x623
758F	Geometrical Progression brute force, math, number theory	2400	x620
665F	Four Divisors data structures, dp, math, number theory, sortings, two pointers	2400	x576
293C	Cube Problem brute force, math, number theory	2400	x552
316D3	PE Lesson dp, math	2400	x533
856C	Eleventh Birthday combinatorics, dp, math	2400	x526
283D	Cows and Cool Sequences dp, math, number theory	2400	x522
193C	Hamming Distance constructive algorithms, greedy, math, matrices	2400	x496
1054E	Chips Puzzle constructive algorithms, implementation, math	2400	x475
662A	Gambling Nim bitmasks, math, matrices, probabilities	2400	x429
154D	Flatland Fencing games, math	2400	x418
717H	Pokermon League challenge math, probabilities	2400	x417
332D	Theft of Blueprints graphs, math	2400	x381
1045H	Self-exploration math	2400	x365
200E	Tractor College implementation, math, number theory, ternary search	2400	x333
73E	Morrowindows math, number theory	2400	x322
97C	Winning Strategy binary search, graphs, math, shortest paths	2400	x297
175D	Plane of Tanks: Duel brute force, dp, math, probabilities	2400	x289
802L	Send the Fool Further! (hard) dfs and similar, dp, math, trees	2400	x280
100J	Interval Coloring *special problem, greedy, math	2400	x60
1305F	Kuroni and the Punishment math, number theory, probabilities	2500	x2361
468C	Hack it! binary search, constructive algorithms, math	2500	x2250