c++++++++++++++++++++++++

解题思路:

注意事项:

参考代码:

#include<iostream>

using namespace std;

int b[100];

bool jud(int k)

{

if (k == 2)return 1;

for (int j = 2; j < k; j++)

if (k % j == 0)return 0;

return 1;

}

int main()

{

int n,k=0;

cin >> n;

if (jud(n) == 1)cout << n << endl;

else {

for (int i = 2; i < n; i++) {

while (n % i == 0)

{

b[k++] = i;

n = n / i;

}

}

for (int i = 0; i < k; i++)

if (i == 0)cout << b[i];

else cout << "*" << b[i];

if (n != 1)cout <<"*"<< n;

}

return 0;

}