Problemset - Codeforces

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

#	Name
1238D	AB-string binary search, combinatorics, dp, strings	1900	x6069
1238C	Standard Free2play dp, greedy, math	1600	x7451
1238B	Kill `Em All greedy, sortings	1300	x13691
1238A	Prime Subtraction math, number theory	900	x24575
1237H	Balanced Reversals constructive algorithms	3300	x373
1237G	Balanced Distribution data structures, dp, greedy	3500	x123
1237F	Balanced Domino Placements combinatorics, dp	2600	x904
1237E	Balanced Binary Search Trees dp, math	2400	x1344
1237D	Balanced Playlist binary search, data structures, implementation	2000	x4253
1237C2	Balanced Removals (Harder) binary search, constructive algorithms, divide and conquer, greedy, implementation, sortings	1900	x4356
1237C1	Balanced Removals (Easier) constructive algorithms, geometry, greedy	1700	x6115
1237B	Balanced Tunnel data structures, sortings, two pointers	1300	x16356
1237A	Balanced Rating Changes implementation, math	1000	x20087
1236F	Alice and the Cactus dfs and similar, graphs, math, probabilities	3000	x177
1236E	Alice and the Unfair Game binary search, data structures, dp, dsu	2500	x671
1236D	Alice and the Doll brute force, data structures, greedy, implementation	2300	x1679
1236C	Labs constructive algorithms, greedy, implementation	1300	x10180
1236B	Alice and the List of Presents combinatorics, math	1500	x11148
1236A	Stones brute force, greedy, math	800	x16505
1234F	Yet Another Substring Reverse bitmasks, dp	2200	x2623
1234E	Special Permutations math	2000	x2801
1234D	Distinct Characters Queries data structures	1600	x15379
1234C	Pipes dp, implementation	1500	x12683
1234B2	Social Network (hard version) data structures, implementation	1300	x16994
1234B1	Social Network (easy version) implementation	1000	x18839
1234A	Equalize Prices Again math	800	x28002
1231E	Middle-Out constructive algorithms, greedy, strings	2200	x842
1231C	Increasing Matrix greedy	1100	x3881
1230B	Ania and Minimizing greedy, implementation	1000	x18785
1230A	Dawid and Bags of Candies brute force, implementation	800	x21735
1228F	One Node is Gone constructive algorithms, implementation, trees	2500	x439
1228E	Another Filling the Grid combinatorics, dp, math	2300	x2793
1228D	Complete Tripartite brute force, constructive algorithms, graphs, hashing, implementation	1900	x5233
1228C	Primes and Multiplication math, number theory	1700	x9084
1228B	Filling the Grid implementation, math	1400	x11565
1228A	Distinct Digits brute force, implementation	800	x21902
1227G	Not Same constructive algorithms	2600	x1063
1227F2	Wrong Answer on test 233 (Hard Version) combinatorics, math	2400	x1535
1227F1	Wrong Answer on test 233 (Easy Version) dp	2200	x1838
1227E	Arson In Berland Forest binary search, graphs, graphs, shortest paths	2200	x1502
1227D2	Optimal Subsequences (Hard Version) data structures, greedy	1800	x4411
1227D1	Optimal Subsequences (Easy Version) data structures, greedy	1600	x6454
1227C	Messy constructive algorithms	1700	x5538
1227B	Box constructive algorithms	1200	x9706
1227A	Math Problem math	1100	x9841
1225G	To Make 1 bitmasks, constructive algorithms, dp, greedy, number theory	3100	x565
1225F	Tree Factory constructive algorithms, greedy, trees	2500	x889
1225E	Rock Is Push binary search, dp	2200	x1905
1225D	Power Products hashing, math, number theory	1800	x8180
1225C	p-binary bitmasks, brute force, math	1600	x9041
1225B2	TV Subscriptions (Hard Version) implementation, two pointers	1300	x10762
1225B1	TV Subscriptions (Easy Version) implementation	1000	x11946
1225A	Forgetting Things math	900	x15870
1223G	Wooden Raft binary search, math, number theory	3200	x250
1223F	Stack Exterminable Arrays data structures, divide and conquer, dp, hashing	2600	x2085
1223E	Paint the Tree dp, sortings, trees	2100	x2631
1223D	Sequence Sorting dp, greedy, two pointers	2000	x4079
1223C	Save the Nature binary search, greedy	1600	x8398
1223B	Strings Equalization strings	1000	x14988
1223A	CME math	800	x21668
1221G	Graph And Numbers bitmasks, brute force, combinatorics, dp, meet-in-the-middle	2900	x767
1221F	Choose a Square binary search, data structures, sortings	2400	x1061
1221E	Game With String games	2500	x1097
1221D	Make The Fence Great Again dp	1800	x9205
1221C	Perfect Team binary search, math	1200	x21338
1221B	Knights constructive algorithms, greedy	1100	x11988
1221A	2048 Game brute force, greedy, math	1000	x17012
1220G	Geolocation geometry	3400	x54
1220F	Gardener Alex binary search, data structures	2700	x720
1220E	Tourism dfs and similar, dp, dsu, graphs, greedy, trees	2200	x2799
1220D	Alex and Julian bitmasks, math, number theory	1900	x3921
1220C	Substring Game in the Lesson games, greedy, strings	1300	x10294
1220B	Multiplication Table math, number theory	1300	x11669
1220A	Cards implementation, sortings, strings	800	x30020
1219G	Harvester implementation	2000	x671
1219C	Periodic integer number implementation, strings	1700	x1802
1218I	The Light Square 2-sat, dfs and similar, greedy	2100	x610
1218H	Function Composition dfs and similar	2900	x134
1218G	Alpha planetary system constructive algorithms, graphs, shortest paths	3000	x100
1218F	Workout plan data structures, greedy	1500	x2971
1218E	Product Tuples divide and conquer, fft	2500	x383
1218D	Xor Spanning Tree divide and conquer, fft, graphs	2400	x508
1218C	Jumping Transformers dp	2600	x184
1218B	Guarding warehouses data structures, geometry	3000	x73
1218A	BubbleReactor dp, graphs	2800	x159
1217F	Forced Online Queries Problem data structures, divide and conquer, dsu, graphs, trees	2600	x602
1217E	Sum Queries? data structures, greedy, implementation, math	2300	x1901
1217D	Coloring Edges constructive algorithms, dfs and similar, graphs	2100	x5402
1217C	The Number Of Good Substrings binary search, bitmasks, brute force	1700	x7483
1217B	Zmei Gorynich greedy, math	1600	x11304
1217A	Creating a Character binary search, math	1300	x15060
1216F	Wi-Fi data structures, dp, greedy	2100	x2712
1216E2	Numerical Sequence (hard version) binary search, math	2200	x1494
1216E1	Numerical Sequence (easy version) binary search, brute force, math	1900	x3467
1216D	Swords math	1300	x11184
1216C	White Sheet geometry, math	1700	x9334
1216B	Shooting greedy, implementation, sortings	900	x18534
1216A	Prefixes strings	800	x18745
1215F	Radio Stations 2-sat	2700	x995
1215E	Marbles bitmasks, dp	2200	x3068