Problemset - Codeforces

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

#	Name
1236E	Alice and the Unfair Game binary search, data structures, dp, dsu	2500	x671
1234F	Yet Another Substring Reverse bitmasks, dp	2200	x2623
1234C	Pipes dp, implementation	1500	x12683
1228E	Another Filling the Grid combinatorics, dp, math	2300	x2793
1227F1	Wrong Answer on test 233 (Easy Version) dp	2200	x1838
1225G	To Make 1 bitmasks, constructive algorithms, dp, greedy, number theory	3100	x565
1225E	Rock Is Push binary search, dp	2200	x1905
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
1221G	Graph And Numbers bitmasks, brute force, combinatorics, dp, meet-in-the-middle	2900	x767
1221D	Make The Fence Great Again dp	1800	x9205
1220E	Tourism dfs and similar, dp, dsu, graphs, greedy, trees	2200	x2799
1218C	Jumping Transformers dp	2600	x184
1218A	BubbleReactor dp, graphs	2800	x159
1216F	Wi-Fi data structures, dp, greedy	2100	x2712
1215E	Marbles bitmasks, dp	2200	x3068
1215B	The Number of Products combinatorics, dp, implementation	1400	x13202
1214D	Treasure Island dfs and similar, dp, flows, hashing	1900	x5217
1211H	Road Repair in Treeland *special problem, binary search, dp, trees	3100	x45
1210G	Mateusz and Escape Room dp	3500	x176
1209E2	Rotate Columns (hard version) bitmasks, dp, greedy, sortings	2500	x1990
1209E1	Rotate Columns (easy version) bitmasks, brute force, dp, greedy, sortings	2000	x2990
1208F	Bits And Pieces bitmasks, dfs and similar, dp, greedy	2600	x2548
1207C	Gas Pipeline dp, greedy	1500	x9889
1206B	Make Product Equal One dp, implementation	900	x27077
1204E	Natasha, Sasha and the Prefix Sums combinatorics, dp, math, number theory	2300	x1697
1204C	Anna, Svyatoslav and Maps dp, graphs, greedy, shortest paths	1700	x6742
1203F2	Complete the Projects (hard version) dp, greedy	2300	x2933
1202C	You Are Given a WASD-string... brute force, data structures, dp, greedy, implementation, math, strings	2100	x2582
1202B	You Are Given a Decimal String... brute force, dp, shortest paths	1700	x4579
1201D	Treasure Hunting binary search, dp, greedy, implementation	2100	x2381
1200F	Graph Traveler brute force, data structures, dfs and similar, dp, graphs, implementation, math, number theory	2300	x1082
1200D	White Lines brute force, data structures, dp, implementation, two pointers	1900	x4148
1200B	Block Adventure dp, greedy	1200	x14023
1198D	Rectangle Painting 1 dp	2300	x3319
1197F	Coloring Game dp, games, matrices	2700	x262
1197E	Culture Code binary search, combinatorics, data structures, dp, shortest paths, sortings	2300	x1692
1197D	Yet Another Subarray Problem dp, greedy, math	1900	x5430
1196D2	RGB Substring (hard version) data structures, dp, implementation, two pointers	1600	x9768
1195C	Basketball Exercise dp	1400	x26563
1194G	Another Meme Problem dp	2700	x262
1194F	Crossword Expert combinatorics, dp, number theory, probabilities, two pointers	2400	x998
1193B	Magic Tree *special problem, data structures, dp, trees		x442
1193A	Amusement Park *special problem, dp, math		x278
1192C	Cubeword *special problem, brute force, dp, meet-in-the-middle		x334
1189C	Candies! data structures, dp, implementation, math	1400	x10624
1188D	Make Equal dp	3100	x726
1188C	Array Beauty dp	2500	x1799
1187F	Expected Square Beauty dp, math, probabilities	2500	x888
1187E	Tree Painting dfs and similar, dp, trees	2100	x8542
1185G2	Playlist for Polycarp (hard version) combinatorics, dp	2600	x768
1185G1	Playlist for Polycarp (easy version) bitmasks, combinatorics, dp	2100	x2891
1183H	Subsequences (hard version) dp, strings	1900	x3204
1183E	Subsequences (easy version) dp, graphs, implementation, shortest paths	2000	x4894
1182E	Product Oriented Recurrence dp, math, matrices, number theory	2300	x2864
1182D	Complete Mirror constructive algorithms, dfs and similar, dp, hashing, implementation, trees	2400	x862
1182A	Filling Shapes dp, math	1000	x31477
1181C	Flag brute force, combinatorics, dp, implementation	1900	x3158
1180A	Alex and a Rhombus dp, implementation, math	800	x25440
1179D	Fedor Runs for President data structures, dp, trees	2700	x845
1178F2	Long Colorful Strip dp	2600	x912
1178F1	Short Colorful Strip combinatorics, dfs and similar, dp	2200	x2122
1178B	WOW Factor dp, strings	1300	x15608
1176F	Destroy it! dp, implementation, sortings	2100	x2057
1176C	Lose it! dp, greedy, implementation	1300	x14270
1175G	Yet Another Partiton Problem data structures, divide and conquer, dp, geometry, two pointers	3000	x493
1175E	Minimal Segment Cover data structures, dfs and similar, divide and conquer, dp, greedy, implementation, trees	2200	x3686
1174E	Ehab and the Expected GCD Problem combinatorics, dp, math, number theory	2500	x1561
1172C2	Nauuo and Pictures (hard version) dp, probabilities	2600	x862
1172C1	Nauuo and Pictures (easy version) dp, probabilities	2300	x1099
1172B	Nauuo and Circle combinatorics, dfs and similar, dp, trees	1900	x4073
1170I	Good Subsets *special problem, dp		x40
1168D	Anagram Paths dp, implementation, trees	3000	x381
1168C	And Reachability bitmasks, dp	2200	x2435
1163D	Mysterious Code dp, strings	2100	x1321
1158F	Density of subarrays dp, math	3500	x415
1157F	Maximum Balanced Circle constructive algorithms, dp, greedy, two pointers	2000	x2663
1156F	Card Bag dp, math, probabilities	2300	x1462
1156D	0-1-Tree dfs and similar, divide and conquer, dp, dsu, trees	2200	x3963
1155F	Delivery Oligopoly brute force, dp, graphs	2800	x419
1155D	Beautiful Array brute force, data structures, divide and conquer, dp, greedy	1900	x6981
1154F	Shovels Shop dp, greedy, sortings	2100	x2874
1153F	Serval and Bonus Problem combinatorics, dp, math, probabilities	2600	x815
1153D	Serval and Rooted Tree binary search, dfs and similar, dp, greedy, trees	1900	x5024
1152F2	Neko Rules the Catniverse (Large Version) bitmasks, dp, matrices	3000	x677
1152F1	Neko Rules the Catniverse (Small Version) bitmasks, dp, matrices	2800	x577
1152D	Neko and Aki's Prank dp, greedy, trees	2100	x2433
1151F	Sonya and Informatics combinatorics, dp, matrices, probabilities	2300	x1247
1151E	Number of Components combinatorics, data structures, dp, math	2100	x3358
1151B	Dima and a Bad XOR bitmasks, brute force, constructive algorithms, dp	1600	x11336
1149D	Abandoning Roads brute force, dp, graphs, greedy	3000	x792
1149B	Three Religions dp, implementation, strings	2200	x1907
1146H	Satanic Panic dp, geometry	2900	x608
1146G	Zoning Restrictions dp, flows, graphs	2700	x850
1146F	Leaf Partition dp, trees	2500	x1190
1144G	Two Merged Sequences dp, greedy	2400	x2019
1142D	Foreigner dp	2800	x520
1142B	Lynyrd Skynyrd data structures, dfs and similar, dp, math, trees	2000	x3086
1140E	Palindrome-less Arrays combinatorics, divide and conquer, dp	2200	x1957