Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 943 (Div. 3)
07:18:31
Register now »

→ Filter Problems

Difficulty: —

interactive

Add tag

Problems

#	Name
1510I	Is It Rated? greedy, interactive, math, probabilities	2700	x447
1505A	Is it rated - 2 *special problem, implementation, interactive	900	x13967
1503B	3-Coloring constructive algorithms, games, interactive	1700	x6833
1499G	Graph Coloring data structures, graphs, interactive	3100	x186
1498E	Two Houses brute force, graphs, greedy, interactive, sortings	2200	x1837
1493F	Enchanted Matrix bitmasks, interactive, number theory	2600	x373
1491F	Magnets binary search, constructive algorithms, interactive	2700	x897
1486C2	Guessing the Greatest (hard version) binary search, interactive	1900	x8117
1486C1	Guessing the Greatest (easy version) binary search, interactive	1600	x11606
1482G	Vabank binary search, interactive	3200	x263
1479A	Searching Local Minimum binary search, interactive, ternary search	1700	x11105
1470C	Strange Shuffle binary search, brute force, constructive algorithms, interactive	2500	x1304
1466I	The Riddle of the Sphinx binary search, data structures, data structures, interactive	3400	x180
1451E2	Bitwise Queries (Hard Version) bitmasks, constructive algorithms, interactive, math	2300	x2825
1451E1	Bitwise Queries (Easy Version) bitmasks, constructive algorithms, interactive, math	2000	x4184
1444E	Finding the Vertex brute force, dfs and similar, dp, interactive, trees	3500	x130
1442F	Differentiating Games games, interactive	3400	x127
1438F	Olha and Igor interactive, probabilities, trees	3000	x609
1428H	Rotary Laser Lock binary search, interactive	3500	x86
1425F	Flamingoes of Mystery interactive	1400	x5203
1423M	Milutin's Plums interactive	2800	x144
1407C	Chocolate Bunny constructive algorithms, interactive, math, two pointers	1600	x11384
1406E	Deleting Numbers interactive, math, number theory	2600	x1544
1404D	Game of Pairs constructive algorithms, dfs and similar, interactive, math, number theory	2800	x982
1403A	The Potion of Great Power *special problem, 2-sat, binary search, data structures, graphs, interactive, sortings, two pointers	2400	x284
1392E	Omkar and Duck bitmasks, constructive algorithms, interactive, math	2100	x3234
1386A	Colors *special problem, binary search, constructive algorithms, interactive	2700	x250
1375F	Integer Game constructive algorithms, games, interactive, math	2600	x1929
1372F	Omkar and Modes binary search, divide and conquer, interactive	2700	x423
1370F2	The Hidden Pair (Hard Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2700	x1240
1370F1	The Hidden Pair (Easy Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2400	x1360
1368F	Lamps on a Circle games, implementation, interactive, math	2600	x844
1365G	Secure Password bitmasks, combinatorics, constructive algorithms, interactive, math	2800	x916
1364E	X-OR bitmasks, constructive algorithms, divide and conquer, interactive, probabilities	2700	x1113
1363D	Guess The Maximums binary search, implementation, interactive, math	2100	x3825
1355F	Guess Divisors Count constructive algorithms, interactive, number theory	2600	x811
1354G	Find a Gift binary search, interactive, probabilities	2600	x719
1340E	Nastya and Bees graphs, interactive, probabilities	3000	x52
1336D	Yui and Mahjong Set constructive algorithms, interactive	3200	x459
1305D	Kuroni and the Celebration constructive algorithms, dfs and similar, interactive, trees	1900	x4751
1299E	So Mean interactive, math	3400	x148
1292E	Rin and The Unknown Flower constructive algorithms, greedy, interactive, math	3500	x327
1291F	Coffee Varieties (easy version) graphs, interactive	2800	x501
1290D	Coffee Varieties (hard version) constructive algorithms, graphs, interactive	3000	x666
1286C2	Madhouse (Hard version) brute force, constructive algorithms, hashing, interactive, math	2800	x607
1286C1	Madhouse (Easy version) brute force, constructive algorithms, interactive, math	2400	x1254
1282D	Enchanted Artifact constructive algorithms, interactive, strings	2300	x2059
1275F	Шардирование постов *special problem, binary search, interactive		x91
1270D	Strange Device constructive algorithms, interactive, math, sortings	1900	x4390
1267I	Intriguing Selection brute force, constructive algorithms, implementation, interactive, sortings	2600	x727
1254C	Point Ordering constructive algorithms, geometry, interactive, math	2300	x1261
1207E	XOR Guessing bitmasks, interactive, math	1900	x5601
1205C	Palindromic Paths implementation, interactive	2400	x1115
1201E2	Knightmare (hard) graphs, interactive, shortest paths	3000	x140
1201E1	Knightmare (easy) graphs, interactive, shortest paths	2900	x125
1179E	Alesya and Discrete Math divide and conquer, interactive	3200	x168
1174F	Ehab and the Big Finale constructive algorithms, divide and conquer, graphs, implementation, interactive, trees	2400	x1435
1167B	Lost Numbers brute force, divide and conquer, interactive, math	1400	x10630
1158E	Strange device binary search, interactive, math, trees	3400	x147
1155E	Guess the Root brute force, interactive, math	2200	x1389
1153E	Serval and Snake binary search, brute force, interactive	2200	x1448
1147F	Zigzag Game games, interactive	3500	x237
1147E	Rainbow Coins interactive	3000	x322
1146C	Tree Diameter bitmasks, graphs, interactive	1700	x3522
1145G	AI Takeover interactive		x160
1142E	Pink Floyd graphs, interactive	3200	x480
1137D	Cooperative Game constructive algorithms, interactive, number theory	2400	x1461
1129E	Legendary Tree binary search, interactive, trees	3100	x369
1117E	Decypher the String bitmasks, chinese remainder theorem, constructive algorithms, interactive, math	2200	x1443
1114E	Arithmetic Progression binary search, interactive, number theory, probabilities	2200	x2771
1103B	Game with modulo binary search, constructive algorithms, interactive	2000	x3170
1100D	Dasha and Chess constructive algorithms, games, interactive	2500	x831
1091G	New Year and the Factorisation Collaboration interactive, math, number theory	3200	x189
1090F	How to Learn You Score constructive algorithms, interactive	2600	x299
1089C	Cactus Search interactive	2500	x401
1088D	Ehab and another another xor problem bitmasks, constructive algorithms, implementation, interactive	2000	x2758
1081F	Tricky Interactor constructive algorithms, implementation, interactive	2600	x445
1080F	Katya and Segments Sets data structures, interactive, sortings	2400	x669
1063C	Dwarves, Hats and Extrasensory Abilities binary search, constructive algorithms, geometry, interactive	1900	x2789
1061F	Lost Root interactive, probabilities	2400	x684
1056C	Pick Heroes greedy, implementation, interactive, sortings	1700	x2316
1044B	Intersecting Subtrees dfs and similar, interactive, trees	1900	x1541
1039B	Subway Pursuit binary search, interactive, probabilities	2100	x2276
1033E	Hidden Bipartite Graph binary search, constructive algorithms, dfs and similar, graphs, interactive	2800	x578
1033D	Divisors interactive, math, number theory	2000	x2302
1028G	Guess the number dp, interactive	3000	x528
1023E	Down or Right constructive algorithms, interactive, matrices	2100	x1951
1019B	The hat binary search, interactive	2000	x1891
1010B	Rocket binary search, interactive	1800	x5068
1007C	Guess two numbers binary search, interactive	3000	x405
952B	A Map of the Cat brute force, interactive	1900	x1991
927A	BuberPool Taxi Optimization *special problem, interactive	2900	x1
916D	Jamie and To-do List data structures, interactive, trees	2200	x488
896B	Ithea Plays With Chtholly binary search, constructive algorithms, games, greedy, interactive	2000	x2049
870D	Something with XOR Queries brute force, interactive, probabilities	2000	x1193
862D	Mahmoud and Ehab and the binary string binary search, divide and conquer, interactive	2000	x1648
843B	Interactive LowerBound brute force, interactive, probabilities	2000	x2134
835E	The penguin's game binary search, constructive algorithms, interactive	2400	x1125
811D	Vladik and Favorite Game constructive algorithms, dfs and similar, graphs, interactive	2100	x1525
809B	Glad to see you! binary search, interactive	2200	x1436