题解 | #特殊乘法#
特殊乘法
https://www.nowcoder.com/practice/a5edebf0622045468436c74c3a34240f
#include <bits/stdc++.h> using namespace std; int main(){ string s1,s2; while(cin >> s1 >> s2){ int ans = 0; for(int i = 0;i < s1.size();i ++){ for(int j = 0;j < s2.size();j ++){ ans += (s1[i] - '0') * (s2[j] - '0'); } } cout << ans << endl; } return 0; }