sqm

C++

#include <algorithm>
#include <iostream>
using namespace std;
class Solution {
 public:
  char findTheDifference(string s, string t) {
    sort(s.begin(), s.end());
    sort(t.begin(), t.end());
    int i;
    for (i = 0; i < t.size(); i++) {
      if (s[i] == t[i]) {
      } else
        return t[i];
    }
    return t[i];
  }
};