What is substring in a string?

In formal language theory and computer science, a substring is a contiguous sequence of characters within a string. For instance, “the best of” is a substring of “It was the best of times”. In contrast, “Itwastimes” is a subsequence of “It was the best of times”, but not a substring.

Which of the following is the longest common sub-sequence between the strings Hbcfgmnapq and Cbhgrsfnmq?

4
10. Which of the following is the longest common subsequence between the strings “hbcfgmnapq” and “cbhgrsfnmq”? Explanation: The length of the longest common subsequence is 4.

What is the difference between subsequence and substring in Java?

The method subSequence() obtains a part of a String given the starting index and the length of the result. The method SubSequence() behaves in the same way as substring(). The only difference is that it returns a CharSequence instead of a String.

What is the difference between Subarray and subsequence?

A subarray has Order and Continuity. A subsequence has Order but not Continuity. A subset does not Order nor Continuity. In the context of an array, SubSequence – need not be contigious but needs to maintain the order.

What is the difference between substring and Substr?

The difference between substring() and substr() The arguments of substring() represent the starting and ending indexes, while the arguments of substr() represent the starting index and the number of characters to include in the returned string.

What will be the recurrence relation of the code?

8. What will be the recurrence relation of the following code? Explanation: As after every recursive call the integer up to which the sum is to be calculated decreases by 1. So the recurrence relation for the given code will be T(n) = T(n-1) + O(1).

What is LCS in DAA?

A subsequence of a given sequence is just the given sequence with some elements left out. Given two sequences X and Y, we say that the sequence Z is a common sequence of X and Y if Z is a subsequence of both X and Y.