题解 | 统计字符

#include <iostream>
#include<map>
using namespace std;

int main() {
    string c;
    string b;
    while (getline(cin, c)) {
        map<char, int>m;
        if(c=="#")break;
        getline(cin, b);
        for (auto it : b) {
            
            ++m[it];
        }
        for (auto it : c) {
            cout << it << " " << m[it] << endl;
        }
    }
}
// 64 位输出请用 printf("%lld")