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What is a substring index?
Strings are ordered sequences of character data. Indexing allows you to access individual characters in a string directly by using a numeric value. String indexing is zero-based: the first character in the string has index 0, the next is 1, and so on.
What is sliding window technique?
Applying sliding window technique : We compute the sum of first k elements out of n terms using a linear loop and store the sum in variable window_sum. Then we will graze linearly over the array till it reaches the end and simultaneously keep track of maximum sum.
What is returned by Instr Amazon India I?
The INSTR functions search string for substring . The function returns an integer indicating the position of the character in string that is the first character of this occurrence. INSTR calculates strings using characters as defined by the input character set.
How to find the shortest substring in a string?
Given a string S and a string t , find the minimum window substring in S which contains all the characters of the string T in the same order. output would be 4 as that’s the minimum length substring which contains all the characters of T in order.
How to find the shortest palindromic substring of a string?
Given a string you need to find the shortest palindromic substring of the string. If there are multiple answers output the lexicographically smallest. Recommended: Please try your approach on {IDE} first, before moving on to the solution.
How do you find the least ending index?
The basic idea is simple: for each starting index, find the least ending index such that the substring contains all of the necessary letters. The trick is that the least ending index increases over the course of the function, so with a little data structure support, we consider each character at most twice.
How do you mark a substring as tentative?
Move the front of the substring forwards again until you meet the histogram condition again. Move the end forwards until it fails again. If this is a shorter substring than the first, mark that as your tentative substring. Repeat until you’ve passed through the entire first string. The marked substring is your answer.