func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long long int i, j, t, n;     double x, y;     cin >> t;     while (t--) {       cin >> n;       switch (n) {         case 1:           j = 0;           break;         case 2:           j = 1;           break;         case 3:           j = 2;           break;         default:           x = double(n);           y = sqrt(x);           i = int(y);           if (n == (i * i)) {             j = (i - 1) + (i - 1);           } else {             n = n - (i * i);             if ((n % i) == 0) {               j = (i - 1) + (n / i) + (i - 1);             } else {               j = i + (n / i) + (i - 1);             }           }       }       cout << j << endl;     }   }   