Problem C HDU 5224

#include <iostream>
#include <cstdio>
#include <cmath>
#include <algorithm>
using namespace std;
int main()
{
	int t,s;
	double m;
	scanf("%d",&t);
	while(t--)
	{
		int x,y,c;
		int mini=1e9;
		scanf("%d",&s);
		m=(double)sqrt(s);
		for(x=1;x<=m;x++)
		{
			if(s%x==0)
			{
				y=s/x;
				c=(x+y)*2;
				mini=min(c,mini);
			}
		}
		printf("%d\n",mini);
		
	}
}