func_code_string: #include <iostream>   #include <cmath>      using namespace std;      int main() {       int t;              cin >> t;              while(t--)       {           int xa, ya, xb, yb, xf, yf;                      cin >> xa >> ya >> xb >> yb >> xf >> yf;                      if(xa==xb && xb==xf && yf > ya && yf < yb)           {               cout << abs(yb-ya) + 2 << endl;               continue;           }                      else if(xa==xb && xb==xf && yf < ya && yf > yb)           {               cout << abs(yb-ya) + 2 << endl;               continue;           }                      else if(ya==yb && yb==yf && xf>xa && xf<xb)           {               cout << abs(xb-xa) + 2 << endl;               continue;           }                      else if(ya==yb && yb==yf && xf<xa && xf>xb)           {               cout << abs(xb-xa) + 2 << endl;               continue;           }                      else           {               cout << abs(xb-xa) + abs(yb-ya) << endl;               continue;           }       }   }