题解 | #质数因子#

感觉复杂都有点高了

#include <iostream>
#include<math.h>
#include<vector>
int minZyz(int a);
using namespace std;

int main()
{
    int n;
    cin>>n;
    vector<int> vec;
    while(n>1){
        int tmp = minZyz(n);
        vec.push_back(tmp);
        n = n/tmp;
    }
    for(auto it=vec.begin();it!=vec.end();++it)
        cout<<*it<<" ";
    return 0;
}

//求出最小质因子
int minZyz(int a){
    int res=1;
    int flag=1;
    for(int i=2;i<=sqrt(a);i){
        if(a%i==0){
            for(int j=2;j<=sqrt(i);++j){
                if(i%j==0){
                    flag=0;
                    break;
                }
            }
            if(flag==0)
                i++;
            else
                return i;
        }
        i++;
    }
    return a;
}