题解 | #质数因子# C/C++

#include <bits/stdc++.h> using namespace::std;

int main() {

int i = 1;
int num;

cin >> num;
if (1 == num) {
    cout << 1 << " ";
}
while (++i <= sqrt(num)) {
    if (!(num%i)) {
        num /= i;
        cout << i << " ";
        i = 1;
    }
}
cout << num << " ";

return 0;

}