문제
풀이
#include <iostream>
#include <string>
using namespace std;
void solve(void) {
int n; cin >> n;
string a; cin >> a;
string b; cin >> b;
int ans = 0;
for (int i=0; i<n; i++) {
if (a[i] != b[i]) ans++;
}
cout << ans;
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
solve();
return 0;
}