Problemset - Codeforces

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Codeforces Round (Div. 2)
2 days

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Difficulty: —

interactive

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Problems

#	Name
1428H	Rotary Laser Lock binary search, interactive	3500	x74
1761G	Centroid Guess interactive, probabilities, trees	3500	x82
1444E	Finding the Vertex brute force, dfs and similar, dp, interactive, trees	3500	x106
1534H	Lost Nodes constructive algorithms, dp, graphs, interactive, sortings, trees	3500	x131
750H	New Year and Snowy Grid dfs and similar, dsu, graphs, interactive	3500	x156
1147F	Zigzag Game games, interactive	3500	x200
1292E	Rin and The Unknown Flower constructive algorithms, greedy, interactive, math	3500	x264
1442F	Differentiating Games games, interactive	3400	x108
1158E	Strange device binary search, interactive, math, trees	3400	x131
1299E	So Mean interactive, math	3400	x137
1466I	The Riddle of the Sphinx binary search, data structures, data structures, interactive	3400	x143
1578I	Interactive Rays geometry, interactive	3300	x57
1552H	Guess the Perimeter binary search, interactive, number theory	3300	x243
1764G3	Doremy's Perfect DS Class (Hard Version) binary search, interactive	3300	x272
1566H	Xor-quiz constructive algorithms, dp, interactive, math, number theory	3200	x94
772E	Verifying Kingdom binary search, divide and conquer, interactive, trees	3200	x109
1179E	Alesya and Discrete Math divide and conquer, interactive	3200	x138
1819E	Roads in E City interactive, math, probabilities, trees	3200	x159
1091G	New Year and the Factorisation Collaboration interactive, math, number theory	3200	x162
1482G	Vabank binary search, interactive	3200	x205
1746E2	Joking (Hard Version) dp, interactive	3200	x282
1142E	Pink Floyd graphs, interactive	3200	x317
1336D	Yui and Mahjong Set constructive algorithms, interactive	3200	x411
1499G	Graph Coloring data structures, graphs, interactive	3100	x161
1129E	Legendary Tree binary search, interactive, trees	3100	x336
1340E	Nastya and Bees graphs, interactive, probabilities	3000	x46
1201E2	Knightmare (hard) graphs, interactive, shortest paths	3000	x109
1526F	Median Queries constructive algorithms, interactive, probabilities	3000	x225
788D	Finding lines constructive algorithms, divide and conquer, interactive	3000	x266
1147E	Rainbow Coins interactive	3000	x285
1764G2	Doremy's Perfect DS Class (Medium Version) binary search, interactive	3000	x322
1007C	Guess two numbers binary search, interactive	3000	x332
1028G	Guess the number dp, interactive	3000	x382
1545D	AquaMoon and Wrong Coordinate constructive algorithms, interactive, math	3000	x385
1438F	Olha and Igor interactive, probabilities, trees	3000	x423
1290D	Coffee Varieties (hard version) constructive algorithms, graphs, interactive	3000	x471
927A	BuberPool Taxi Optimization *special problem, interactive	2900	x1
1201E1	Knightmare (easy) graphs, interactive, shortest paths	2900	x105
1562F	Tubular Bells interactive, math, number theory, probabilities	2900	x293
1764G1	Doremy's Perfect DS Class (Easy Version) binary search, interactive	2900	x371
1705F	Mark and the Online Exam bitmasks, constructive algorithms, interactive, probabilities	2900	x488
1423M	Milutin's Plums interactive	2800	x118
1826F	Fading into Fog geometry, interactive, math, probabilities	2800	x226
1633F	Perfect Matching data structures, divide and conquer, interactive, trees	2800	x261
1721F	Matching Reduction brute force, constructive algorithms, dfs and similar, flows, graph matchings, graphs, interactive	2800	x302
1291F	Coffee Varieties (easy version) graphs, interactive	2800	x345
750F	New Year and Finding Roots constructive algorithms, implementation, interactive, trees	2800	x399
1033E	Hidden Bipartite Graph binary search, constructive algorithms, dfs and similar, graphs, interactive	2800	x471
1286C2	Madhouse (Hard version) brute force, constructive algorithms, hashing, interactive, math	2800	x532
1557E	Assiut Chess brute force, constructive algorithms, interactive	2800	x636
1365G	Secure Password bitmasks, combinatorics, constructive algorithms, interactive, math	2800	x780
1404D	Game of Pairs constructive algorithms, dfs and similar, interactive, math, number theory	2800	x848
1386A	Colors *special problem, binary search, constructive algorithms, interactive	2700	x213
1372F	Omkar and Modes binary search, divide and conquer, interactive	2700	x356
1578M	The Mind constructive algorithms, interactive, probabilities	2700	x398
1510I	Is It Rated? greedy, interactive, math, probabilities	2700	x399
1715F	Crop Squares constructive algorithms, geometry, interactive, math	2700	x441
1514E	Baby Ehab's Hyper Apartment binary search, graphs, interactive, sortings, two pointers	2700	x442
1491F	Magnets binary search, constructive algorithms, interactive	2700	x820
1364E	X-OR bitmasks, constructive algorithms, divide and conquer, interactive, probabilities	2700	x953
1370F2	The Hidden Pair (Hard Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2700	x1108
1090F	How to Learn You Score constructive algorithms, interactive	2600	x241
1773H	Hot and Cold binary search, interactive	2600	x247
1765G	Guess the String constructive algorithms, interactive, probabilities	2600	x276
1493F	Enchanted Matrix bitmasks, interactive, number theory	2600	x334
1081F	Tricky Interactor constructive algorithms, implementation, interactive	2600	x404
1267I	Intriguing Selection brute force, constructive algorithms, implementation, interactive, sortings	2600	x599
1354G	Find a Gift binary search, interactive, probabilities	2600	x636
1355F	Guess Divisors Count constructive algorithms, interactive, number theory	2600	x707
1368F	Lamps on a Circle games, implementation, interactive, math	2600	x781
1406E	Deleting Numbers interactive, math, number theory	2600	x1327
1375F	Integer Game constructive algorithms, games, interactive, math	2600	x1750
753C	Interactive Bulls and Cows (Hard) brute force, constructive algorithms, interactive	2500	x256
1089C	Cactus Search interactive	2500	x354
1773I	Interactive Factorial Guessing brute force, games, implementation, interactive	2500	x376
1776I	Spinach Pizza games, geometry, greedy, interactive	2500	x459
1776C	Library game games, greedy, interactive, sortings	2500	x481
1100D	Dasha and Chess constructive algorithms, games, interactive	2500	x801
1746E1	Joking (Easy Version) binary search, constructive algorithms, interactive, ternary search	2500	x1162
1470C	Strange Shuffle binary search, brute force, constructive algorithms, interactive	2500	x1210
1403A	The Potion of Great Power *special problem, 2-sat, binary search, data structures, graphs, interactive, sortings, two pointers	2400	x273
1080F	Katya and Segments Sets data structures, interactive, sortings	2400	x583
1061F	Lost Root interactive, probabilities	2400	x630
1673F	Anti-Theft Road Planning bitmasks, constructive algorithms, divide and conquer, greedy, interactive, math	2400	x676
1738F	Connectivity Addicts constructive algorithms, dsu, graphs, greedy, interactive, shortest paths, trees	2400	x1011
835E	The penguin's game binary search, constructive algorithms, interactive	2400	x1012
1205C	Palindromic Paths implementation, interactive	2400	x1056
1286C1	Madhouse (Easy version) brute force, constructive algorithms, interactive, math	2400	x1086
1137D	Cooperative Game constructive algorithms, interactive, number theory	2400	x1165
1174F	Ehab and the Big Finale constructive algorithms, divide and conquer, graphs, implementation, interactive, trees	2400	x1222
1370F1	The Hidden Pair (Easy Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2400	x1233
710F	String Set Queries brute force, data structures, hashing, interactive, string suffix structures, strings	2400	x1266
1779E	Anya's Simultaneous Exhibition constructive algorithms, graphs, greedy, interactive, sortings	2400	x1455
1617D2	Too Many Impostors (hard version) constructive algorithms, implementation, interactive, math	2400	x1519
1254C	Point Ordering constructive algorithms, geometry, interactive, math	2300	x1143
1534E	Lost Array graphs, greedy, interactive, shortest paths	2300	x1657
1282D	Enchanted Artifact constructive algorithms, interactive, strings	2300	x1884
1592D	Hemose in ICPC ? binary search, dfs and similar, implementation, interactive, math, number theory, trees	2300	x1978
1451E2	Bitwise Queries (Hard Version) bitmasks, constructive algorithms, interactive, math	2300	x2570
1628C	Grid Xor constructive algorithms, greedy, implementation, interactive, math	2300	x2806

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