DAY2P2.md

Is Subsequence

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• Question:

Given two strings s and t, return true if s is a subsequence of t, or false otherwise.

A subsequence of a string is a new string that is formed from the original string by deleting some (can be none) of the characters without disturbing the relative positions of the remaining characters. (i.e., "ace" is a subsequence of "abcde" while "aec" is not).

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• Example:

Input: s = "abc", t = "ahbgdc" Output: true

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• Solution:

Code :

class Solution {
    public boolean isSubsequence(String s, String t) {
        int i=0;
        int j=0;
        while(i<s.length() && j<t.length())
        {
            if(s.charAt(i)==t.charAt(j))
            {
                i++;
            }
            j++;
        }
        if(i==s.length())
            return true;
        return false;
    }
}