Problemset - Codeforces

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Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2)
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Problems

#	Name
1407E	Egor in the Republic of Dagestan constructive algorithms, dfs and similar, dp, graphs, greedy, shortest paths	2500	x1724
1407D	Discrete Centrifugal Jumps data structures, dp, graphs	2200	x5002
1406B	Maximum Product brute force, dp, greedy, implementation, sortings	1200	x22791
1404B	Tree Tag dfs and similar, dp, games, trees	1900	x7488
1403C	Chess Rush *special problem, combinatorics, dp, implementation, math	3200	x53
1402C	Star Trek *special problem, combinatorics, dfs and similar, dp, games, graphs, matrices, trees	2600	x205
1401D	Maximum Distributed Tree dfs and similar, dp, greedy, implementation, math, number theory, sortings, trees	1800	x9387
1400G	Mercenaries bitmasks, brute force, combinatorics, dp, dsu, math, two pointers	2600	x981
1400F	x-prime Substrings brute force, dfs and similar, dp, string suffix structures, strings	2800	x907
1400E	Clear the Multiset data structures, divide and conquer, dp, greedy	2200	x5532
1399F	Yet Another Segments Subset data structures, dp, graphs, sortings	2300	x1630
1398F	Controversial Rounds binary search, data structures, dp, greedy, two pointers	2500	x1293
1398D	Colored Rectangles dp, greedy, sortings	1800	x11578
1398C	Good Subarrays data structures, dp, math	1600	x27066
1396C	Monster Invaders dp, greedy, implementation	2300	x2624
1395C	Boboniu and Bit Operations bitmasks, brute force, dp, greedy	1600	x14208
1394D	Boboniu and Jianghu dp, greedy, sortings, trees	2800	x1037
1394A	Boboniu Chats with Du dp, greedy, sortings, two pointers	1800	x6809
1393E2	Twilight and Ancient Scroll (harder version) dp, hashing, implementation, string suffix structures, strings, two pointers	3200	x371
1393E1	Twilight and Ancient Scroll (easier version) dp, hashing, implementation, string suffix structures, strings	2800	x391
1393D	Rarity and New Dress dfs and similar, dp, implementation, shortest paths	2100	x4016
1392H	ZS Shuffles Cards combinatorics, dp, math, probabilities	3000	x784
1392G	Omkar and Pies bitmasks, dfs and similar, dp, math, shortest paths	2900	x516
1392D	Omkar and Bed Wars dp, greedy	1700	x8989
1391D	505 bitmasks, brute force, constructive algorithms, dp, greedy, implementation	2000	x5349
1391C	Cyclic Permutations combinatorics, dp, graphs, math	1500	x15088
1389G	Directing Edges dfs and similar, dp, graphs, trees	2800	x399
1389F	Bicolored Segments data structures, dp, graph matchings, sortings	2600	x1044
1389C	Good String brute force, dp, greedy, two pointers	1500	x19134
1389B	Array Walk brute force, dp, greedy	1600	x16946
1387C	Viruses *special problem, dp, shortest paths, string suffix structures	2900	x143
1387B1	Village (Minimum) *special problem, dp, greedy, trees	2100	x1493
1387A	Graph *special problem, binary search, dfs and similar, dp, math, ternary search	2100	x729
1385D	a-Good String bitmasks, brute force, divide and conquer, dp, implementation	1500	x19457
1384B2	Koa and the Beach (Hard Version) constructive algorithms, dp, greedy, implementation	2200	x2507
1384B1	Koa and the Beach (Easy Version) brute force, dp, greedy	1900	x3934
1383E	Strange Operation combinatorics, data structures, dp	2800	x792
1383C	String Transformation 2 bitmasks, dp, graphs, trees	3100	x578
1383B	GameGame bitmasks, constructive algorithms, dp, games, greedy, math	1900	x5108
1382B	Sequential Nim dp, games	1100	x24765
1381D	The Majestic Brown Tree Snake dfs and similar, dp, greedy, trees, two pointers	3000	x684
1381B	Unmerge dp	1800	x8974
1380F	Strange Addition data structures, dp, matrices	2600	x792
1380C	Create The Teams brute force, dp, greedy, implementation, sortings	1400	x20881
1379E	Inverse Genealogy constructive algorithms, divide and conquer, dp, math, trees	2800	x433
1379C	Choosing flowers binary search, brute force, data structures, dfs and similar, dp, greedy, sortings, two pointers	2000	x5623
1373E	Sum of Digits brute force, constructive algorithms, dp, greedy	2200	x2758
1373D	Maximum Sum on Even Positions divide and conquer, dp, greedy, implementation	1600	x15755
1372E	Omkar and Last Floor dp, greedy, two pointers	2900	x1190
1372D	Omkar and Circle brute force, dp, games, greedy	2100	x5420
1371E2	Asterism (Hard Version) binary search, combinatorics, dp, math, number theory, sortings	2300	x2360
1370D	Odd-Even Subsequence binary search, dp, dsu, greedy, implementation	2000	x9774
1369F	BareLee dfs and similar, dp, games	2700	x653
1369D	TediousLee dp, graphs, greedy, math, trees	1900	x8687
1368H1	Breadboard Capacity (easy version) dp, flows, greedy	3300	x354
1367F2	Flying Sort (Hard Version) binary search, data structures, dp, greedy, sortings, two pointers	2400	x1684
1367F1	Flying Sort (Easy Version) dp, greedy, two pointers	2100	x3305
1367E	Necklace Assembly brute force, dfs and similar, dp, graphs, greedy, number theory	1900	x5492
1366G	Construct the String data structures, dp, strings	2700	x554
1366F	Jog Around The Graph binary search, dp, geometry, graphs	2700	x818
1366E	Two Arrays binary search, brute force, combinatorics, constructive algorithms, dp, two pointers	2100	x4302
1363F	Rotating Substrings dp, strings	2600	x1537
1363E	Tree Shuffling dfs and similar, dp, greedy, trees	2000	x6868
1360F	Spy-string bitmasks, brute force, constructive algorithms, dp, hashing, strings	1700	x12522
1360E	Polygon dp, graphs, implementation, shortest paths	1300	x25602
1359D	Yet Another Yet Another Task data structures, dp, implementation, two pointers	2000	x9571
1359B	New Theatre Square brute force, dp, greedy, implementation, two pointers	1000	x27929
1355B	Young Explorers dp, greedy, sortings	1200	x25891
1354F	Summoning Minions constructive algorithms, dp, flows, graph matchings, greedy, sortings	2500	x1237
1354E	Graph Coloring dfs and similar, dp, graphs	2100	x3386
1354B	Ternary String binary search, dp, implementation, two pointers	1200	x31302
1353F	Decreasing Heights brute force, dp	2200	x3367
1353E	K-periodic Garland brute force, dp, greedy	1900	x7216
1350B	Orac and Models dp, math, number theory	1400	x22575
1349F2	Slime and Sequences (Hard Version) dp, fft, math	3500	x115
1349F1	Slime and Sequences (Easy Version) dp, fft, math	3100	x420
1349E	Slime and Hats constructive algorithms, dp, greedy	3500	x92
1348E	Phoenix and Berries brute force, dp, greedy, math	2400	x2250
1346I	Pac-Man 2.0 *special problem, dp	2900	x49
1346E	Magic Tricks *special problem, dp, graphs	1700	x380
1345B	Card Constructions binary search, brute force, dp, math	1100	x26665
1344C	Quantifier Question dfs and similar, dp, graphs, math	2600	x1873
1343C	Alternating Subsequence dp, greedy, two pointers	1200	x38784
1342F	Make It Ascending bitmasks, brute force, dp	3000	x768
1340C	Nastya and Unexpected Guest dfs and similar, dp, graphs, shortest paths	2400	x2263
1340B	Nastya and Scoreboard bitmasks, dp, graphs, greedy	1700	x7878
1339A	Filling Diamonds brute force, dp, implementation, math	900	x32234
1338D	Nested Rubber Bands constructive algorithms, dfs and similar, dp, math, trees	2700	x1029
1336C	Kaavi and Magic Spell dp, strings	2200	x3626
1336A	Linova and Kingdom dfs and similar, dp, greedy, sortings, trees	1600	x20634
1335E2	Three Blocks Palindrome (hard version) brute force, data structures, dp, two pointers	1800	x8390
1335E1	Three Blocks Palindrome (easy version) binary search, brute force, data structures, dp, two pointers	1700	x10899
1334F	Strange Function binary search, data structures, dp, greedy	2500	x1324
1332F	Independent Set dfs and similar, dp, trees	2500	x1020
1331F	Elementary! *special problem, brute force, dp, strings		x569
1328D	Carousel constructive algorithms, dp, graphs, greedy, math	1800	x13300
1327G	Letters and Question Marks bitmasks, dp, string suffix structures	2800	x428
1327F	AND Segments bitmasks, combinatorics, data structures, dp, two pointers	2500	x1699
1327E	Count The Blocks combinatorics, dp, math	1800	x9013
1326G	Spiderweb Trees dp, geometry, trees	3500	x81