1132 Cut Integer (20分)

Cutting an integer means to cut a K digits lone integer Z into two integers of (K/2) digits long integers A and B. For example, after cutting Z = 167334, we have A = 167 and B = 334. It is interesting to see that Z can be devided by the product of A and B, as 167334 / (167 × 334) = 3. Given an integer Z, you are supposed to test if it is such an integer.

Input Specification:

Each input file contains one test case. For each case, the first line gives a positive integer N (≤ 20). Then N lines follow, each gives an integer Z (10 ≤ Z <). It is guaranteed that the number of digits of Z is an even number.

Output Specification:

For each case, print a single line Yes if it is such a number, or No if not.

Sample Input:

3
167334
2333
12345678

 

Sample Output:

Yes
No
No

这题是进行字符串切割，前段为a，后段为b，总体为c，如果 c % (a * b) 为 0，则打印Yes，否则打印No。我们要注意a * b是否为0，如果为0打印No

#include <iostream>
#include <string>
using namespace std;
int main() {
    int N; string s;
    cin >> N;
    while(N--) {
        cin >> s;
        int a = stoi(s.substr(0, s.length() / 2));
        int b = stoi(s.substr(s.length() / 2, s.length() / 2));
        int c = stoi(s);
        printf("%s\n", a * b == 0 ? "No" : (c % (a * b)) == 0 ? "Yes" : "No");
    } 
}