题解 | #字符串字符匹配#

#include <iostream>
#include <bits/stdc++.h>
using namespace std;
// stl includes 判断子集合
int main() {
    string s1, s2;
    while (getline(cin, s1)) { // 注意 while 处理多个 case
        while (getline(cin, s2)) {
            set<char> st1, st2;
            for (char ch : s1) {
                st1.insert(ch);
            }
            for (char ch : s2) {
                st2.insert(ch);
            }
            if (includes(st2.begin(), st2.end(), st1.begin(), st1.end())) {
                cout << "true" << endl;
            } else {
                cout << "false" << endl;
            }
        }
    }
}