Problemset - Codeforces

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Before contest
Technocup 2020 - Elimination Round 4
36:11:32

Before contest
Codeforces Round #606 (Div. 1, based on Technocup 2020 Elimination Round 4)
36:11:32
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Before contest
Codeforces Round #606 (Div. 2, based on Technocup 2020 Elimination Round 4)
36:11:32
Register now »

*has extra registration

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Difficulty: —

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Problems

#	Name
1267I	Intriguing Selection brute force, constructive algorithms, implementation, interactive, sortings	2700	x320
1254C	Point Ordering constructive algorithms, geometry, interactive, math	2300	x666
1207E	XOR Guessing bitmasks, interactive, math	1800	x3031
1205C	Palindromic Paths implementation, interactive	2500	x743
1201E2	Knightmare (hard) graphs, interactive, shortest paths	3000	x59
1201E1	Knightmare (easy) graphs, interactive, shortest paths	2900	x59
1179E	Alesya and Discrete Math divide and conquer, interactive	3200	x58
1174F	Ehab and the Big Finale constructive algorithms, divide and conquer, graphs, implementation, interactive, trees	2300	x676
1167B	Lost Numbers brute force, divide and conquer, interactive, math	1400	x5171
1158E	Strange device binary search, interactive, math, trees	3300	x41
1147F	Zigzag Game games, interactive	3400	x58
1147E	Rainbow Coins interactive	2900	x171
1155E	Guess the Root brute force, interactive, math	2200	x822
1146C	Tree Diameter bitmasks, graphs, interactive	1700	x2091
1153E	Serval and Snake binary search, brute force, interactive	2100	x1022
1142E	Pink Floyd graphs, interactive	3100	x112
1137D	Cooperative Game constructive algorithms, interactive, number theory	2500	x600
1129E	Legendary Tree binary search, interactive, trees	3000	x162
1117E	Decypher the String bitmasks, chinese remainder theorem, constructive algorithms, interactive, math	2200	x863
1114E	Arithmetic Progression binary search, interactive, number theory, probabilities	2100	x1696
1103B	Game with modulo binary search, constructive algorithms, interactive	2000	x2115
1100D	Dasha and Chess constructive algorithms, games, interactive	2400	x560
1091G	New Year and the Factorisation Collaboration interactive, math, number theory	3100	x99
1081F	Tricky Interactor constructive algorithms, implementation, interactive	2500	x258
1088D	Ehab and another another xor problem bitmasks, constructive algorithms, implementation, interactive	2000	x1630
1089C	Cactus Search interactive	2800	x242
1056C	Pick Heroes greedy, implementation, interactive, sortings	1700	x1607
1080F	Katya and Segments Sets data structures, interactive, sortings	2700	x309
1061F	Lost Root interactive, probabilities	2400	x335
1044B	Intersecting Subtrees dfs and similar, interactive, trees	1900	x1050
1063C	Dwarves, Hats and Extrasensory Abilities binary search, constructive algorithms, geometry, interactive	1900	x1819
1033E	Hidden Bipartite Graph binary search, constructive algorithms, dfs and similar, graphs, interactive	2700	x253
1033D	Divisors interactive, math, number theory	2000	x1423
1039B	Subway Pursuit binary search, interactive, probabilities	2100	x1436
1028G	Guess the number dp, interactive	2900	x241
1023E	Down or Right constructive algorithms, interactive, matrices	2100	x1309
1019B	The hat binary search, interactive	2200	x1194
1010B	Rocket binary search, interactive	1800	x3184
1007C	Guess two numbers binary search, interactive	2800	x170
916D	Jamie and To-do List data structures, interactive, trees	2600	x260
896B	Ithea Plays With Chtholly binary search, constructive algorithms, games, greedy, interactive	2000	x1316
870D	Something with XOR Queries brute force, interactive, probabilities	2100	x847
862D	Mahmoud and Ehab and the binary string binary search, divide and conquer, interactive	2000	x1069
843B	Interactive LowerBound brute force, interactive, probabilities	2000	x1423
835E	The penguin's game binary search, constructive algorithms, interactive	2400	x591
811D	Vladik and Favorite Game constructive algorithms, dfs and similar, graphs, interactive	2000	x1017
809B	Glad to see you! binary search, interactive	2200	x1016
772E	Verifying Kingdom binary search, divide and conquer, interactive, trees	3200	x61
788D	Finding lines constructive algorithms, divide and conquer, interactive	2900	x143
755C	PolandBall and Forest dfs and similar, dsu, graphs, interactive, trees	1300	x5399
750H	New Year and Snowy Grid dfs and similar, dsu, graphs, interactive	3400	x56
750F	New Year and Finding Roots constructive algorithms, implementation, interactive, trees	2700	x286
753C	Interactive Bulls and Cows (Hard) brute force, constructive algorithms, interactive	2400	x177
744B	Hongcow's Game bitmasks, divide and conquer, interactive	2000	x1302
730B	Minimum and Maximum constructive algorithms, interactive	1900	x1627
727C	Guess the Array constructive algorithms, interactive, math	1400	x2564
713B	Searching Rectangles binary search, constructive algorithms, interactive	2200	x1100
679A	Bear and Prime 100 constructive algorithms, interactive, math	1400	x6168