Submission #953361

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for (int (i)=(0);(i)<(int)(n);++(i))

const int mod = 1e9+7;

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);

    int n;
    string s, t;
    cin >> n >> s >> t;

    set<char> st;
    rep(i, s.size()) st.insert(s[i]);
    rep(i, t.size()) st.insert(t[i]);

    cout << st.size() << endl;

    return 0;
}

Submission Info

Judge Result