Problemset - Codeforces

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Codeforces Round 974 (Div. 3)
03:29:28
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Problems

#	Name
1498A	GCD Sum brute force, math	800	x23148
1497E2	Square-Free Division (hard version) data structures, dp, greedy, math, number theory, two pointers	2500	x1668
1497E1	Square-Free Division (easy version) data structures, dp, greedy, math, number theory, two pointers	1700	x8292
1497D	Genius bitmasks, dp, graphs, number theory	2500	x1523
1497C2	k-LCM (hard version) constructive algorithms, math	1600	x17172
1497C1	k-LCM (easy version) constructive algorithms, math	1200	x25634
1497B	M-arrays constructive algorithms, greedy, math	1200	x19803
1497A	Meximization brute force, data structures, greedy, sortings	800	x24273
1496B	Max and Mex math	1100	x17528
1496A	Split it! brute force, constructive algorithms, greedy, strings	900	x20854
1495F	Squares constructive algorithms, data structures, dp, graphs, trees	3300	x294
1495E	Qingshan and Daniel brute force, data structures, greedy, implementation	3200	x414
1495D	BFS Trees combinatorics, dfs and similar, graphs, math, shortest paths, trees	2600	x1315
1495C	Garden of the Sun constructive algorithms, graphs	2300	x2621
1495B	Let's Go Hiking games, greedy	1900	x5993
1495A	Diamond Miner geometry, greedy, math, sortings	1200	x17020
1494F	Delete The Edges brute force, constructive algorithms, dfs and similar, graphs, implementation	2900	x372
1494E	A-Z Graph constructive algorithms, data structures, graphs, hashing	2400	x1755
1494D	Dogeforces constructive algorithms, data structures, dfs and similar, divide and conquer, dsu, greedy, sortings, trees	2300	x2562
1494C	1D Sokoban binary search, dp, greedy, implementation, two pointers	1900	x5399
1494B	Berland Crossword bitmasks, brute force, greedy, implementation	1400	x14297
1494A	ABC String bitmasks, brute force, implementation	900	x20835
1493F	Enchanted Matrix bitmasks, interactive, number theory	2600	x419
1493E	Enormous XOR bitmasks, constructive algorithms, greedy, math, strings, two pointers	2600	x926
1493D	GCD of an Array brute force, data structures, hashing, implementation, math, number theory, sortings, two pointers	2100	x4978
1493C	K-beautiful Strings binary search, brute force, constructive algorithms, greedy, strings	2000	x4589
1493B	Planet Lapituletti brute force, implementation	1300	x11830
1493A	Anti-knapsack constructive algorithms, greedy	800	x19283
1492E	Almost Fault-Tolerant Database brute force, constructive algorithms, dfs and similar, greedy, implementation	2500	x1178
1492D	Genius's Gambit bitmasks, constructive algorithms, greedy, math	1900	x6085
1492C	Maximum width binary search, data structures, dp, greedy, two pointers	1500	x16054
1492B	Card Deck data structures, greedy, math	1100	x18357
1492A	Three swimmers math	800	x22621
1491I	Ruler Of The Zoo brute force, data structures	3500	x82
1491H	Yuezheng Ling and Dynamic Tree data structures, trees	3400	x807
1491G	Switch and Flip constructive algorithms, graphs, math	2800	x820
1491F	Magnets binary search, constructive algorithms, interactive	2700	x994
1491E	Fib-tree brute force, dfs and similar, divide and conquer, number theory, trees	2400	x2147
1491D	Zookeeper and The Infinite Zoo bitmasks, constructive algorithms, dp, greedy, math	1800	x7156
1491C	Pekora and Trampoline brute force, data structures, dp, greedy, implementation	1700	x7892
1491B	Minimal Cost brute force, math	1200	x13776
1491A	K-th Largest Value brute force, greedy, implementation	800	x18205
1490G	Old Floppy Drive binary search, data structures, math	1900	x5635
1490F	Equalize the Array binary search, data structures, greedy, math, sortings	1500	x16081
1490E	Accidental Victory binary search, data structures, greedy	1400	x19016
1490D	Permutation Transformation dfs and similar, divide and conquer, implementation	1200	x19467
1490C	Sum of Cubes binary search, brute force, brute force, math	1100	x32941
1490B	Balanced Remainders brute force, constructive algorithms, math	1000	x26123
1490A	Dense Array greedy, math	800	x31124
1488J	Flower Shop *special problem, data structures, fft, math	3100	x35
1488I	Demonic Invasion *special problem, flows	3100	x37
1488H	Build From Suffixes *special problem, combinatorics, data structures	2800	x58
1488G	Painting Numbers *special problem, data structures, greedy, number theory	2500	x123
1488F	Dogecoin special problem, special problem, binary search, data structures	2300	x176
1488E	Palindromic Doubles *special problem, data structures, dp	2200	x212
1488D	Problemsolving Marathon *special problem, binary search, greedy	1900	x337
1488C	Two Policemen *special problem, binary search, brute force, math	1900	x405
1488B	RBS Deletion *special problem, greedy	1800	x558
1488A	From Zero To Y *special problem, math	900	x1392
1487G	String Counting combinatorics, dp, fft, math	2700	x595
1487F	Ones dp, greedy, shortest paths	2900	x377
1487E	Cheap Dinner brute force, data structures, graphs, greedy, implementation, sortings, two pointers	2000	x4532
1487D	Pythagorean Triples binary search, brute force, math, number theory	1500	x17816
1487C	Minimum Ties brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation, math	1500	x14110
1487B	Cat Cycle math, number theory	1200	x20883
1487A	Arena implementation, sortings	800	x26500
1486F	Pairs of Paths combinatorics, data structures, dfs and similar, dp, trees	2600	x654
1486E	Paired Payment binary search, brute force, constructive algorithms, dp, flows, graphs, shortest paths	2200	x2893
1486D	Max Median binary search, data structures, dp	2100	x7193
1486C2	Guessing the Greatest (hard version) binary search, interactive	1900	x8429
1486C1	Guessing the Greatest (easy version) binary search, interactive	1600	x12122
1486B	Eastern Exhibition binary search, geometry, shortest paths, sortings	1500	x15901
1486A	Shifting Stacks greedy, implementation	900	x25317
1485F	Copy or Prefix Sum combinatorics, data structures, dp, sortings	2400	x1937
1485E	Move and Swap dfs and similar, dp, greedy, trees	2500	x1290
1485D	Multiples and Power Differences constructive algorithms, graphs, math, number theory	2200	x5139
1485C	Floor and Mod binary search, brute force, math, number theory	1700	x9907
1485B	Replace and Keep Sorted dp, implementation, math	1200	x17038
1485A	Add and Divide brute force, greedy, math, number theory	1000	x22307
1482H	Exam data structures, string suffix structures, trees	3400	x476
1482G	Vabank binary search, interactive	3200	x280
1482F	Useful Edges graphs, shortest paths	2400	x1527
1482E	Skyline Photo data structures, divide and conquer, dp	2100	x3162
1482D	Playlist data structures, dsu, implementation, shortest paths	1900	x3840
1482C	Basic Diplomacy brute force, constructive algorithms, greedy, implementation	1600	x9369
1482B	Restore Modulo implementation, math	1500	x9168
1482A	Prison Break math	800	x20405
1481F	AB Tree dp, greedy, trees	3100	x482
1481E	Sorting Books data structures, dp, greedy	2500	x2065
1481D	AB Graph brute force, constructive algorithms, graphs, greedy, implementation	2000	x4526
1481C	Fence Painting brute force, constructive algorithms, greedy	1600	x11603
1481B	New Colony brute force, greedy, implementation	1100	x19268
1481A	Space Navigation greedy, strings	800	x24905
1480B	The Great Hero greedy, implementation, sortings	900	x17158
1480A	Yet Another String Game games, greedy, strings	800	x25815
1479E	School Clubs dp, fft, math, number theory, probabilities	3500	x206
1479D	Odd Mineral Resource binary search, bitmasks, brute force, data structures, probabilities, trees	2900	x1013
1479C	Continuous City bitmasks, constructive algorithms	2500	x1322
1479B2	Painting the Array II constructive algorithms, data structures, dp, greedy, implementation	2100	x4037
1479B1	Painting the Array I constructive algorithms, data structures, dp, greedy, implementation	1900	x6947