392. 判断子序列

392. 判断子序列

class Solution {
public:
    bool isSubsequence(string s, string t) {
        int i=0,j=0;
        while(i<s.size() && j<t.size()){
            if(s[i]==t[j])i++,j++;
            else j++;
        }
        return i==s.size();
    }
};