PAT甲级 1132. Cut Integer (20)

https://www.patest.cn/contests/pat-a-practise/1132

Cutting an integer means to cut a K digits long 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 x 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<=2³¹). 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:

3167334233312345678

Sample Output:

YesNoNo

#include#includeusing namespace std;int countDigit(int num){int digit = 0;while (num>0){num /= 10;digit++;}return digit;}int main(){int N;cin >> N;for (int i = 0; i> input;digit = countDigit(input);digit /= 2;num = pow((double)10, (int)digit);left = input / num;right = input%num;if (left*right == 0)cout << "No" << endl;elseif (input % (left*right) == 0)cout << "Yes" << endl;elsecout << "No" << endl;}return 0;}