具体见代码：

#include <bits/stdc++.h>
using namespace std;
int main()
{
    //freopen("sqrt6.in","r",stdin);
    //freopen("sqrt6.txt","w",stdout);
    int T;
    scanf("%d",&T);
    while (T--)
    {
        long long a;
        scanf("%lld",&a);
        long long b=(long long)(sqrt(a));
        long long ans=(b-1)*3;
        ans+=a/b-b+1;
        printf("%lld\n",ans);
    }
    return 0;
}