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GATE | Sudo GATE 2020 Mock III (24 January 2019) | Question 17

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Which of the following option is True?

(A)

Time complexity to detect cycle in an directed graph is O(V^2), where V is number of vertices and E is number of edges.

(B)

Time complexity to find Longest Common Subsequence is O(2^(m+n)), where m, n are sizes of given strings.

(C)

Time complexity of Job Sequencing Problem is O(n^2), where n is number of jobs.

(D)

Time complexity to find K-th element of two sorted arrays is O(K).


Answer: (C)

Explanation:

Time complexity to detect cycle in an directed graph is O(V^2), where V is number of virties and E is number of edges. Time complexity to find Longest Common Subsequence is O(m*n), where m, n are sizes of given strings. Time complexity of Job Sequencing Problem is O(n^2), where n is number of jobs. Time complexity to find K-th element of two sorted arrays is O(log(K)). Option (C) is true.


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Last Updated : 20 Jan, 2020
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