题解 | #统计字符#

#include <iostream>
#include <string>
#include <cstdio>
using namespace std;

int main() {
    string a, b;
    while (getline(cin, a)) {
        if ("#" == a) {
            break;
        }
        getline(cin, b);
        for (char & i : a) {
            int k=0;
            for (char j : b) {
                if (i == j) {
                    ++k;
                }
            }
            cout << i << " " << k << endl;
        }
    }
}