#include #include #include #include main(){ ifstream file; int i,j,n; double *x1, *x2, *x3; string nome_del_file; cout << "Inserisci il nome del file: "; cin >> nome_del_file; file.open(nome_del_file.c_str()); if (file){ //Alloco 3 vettori (uno per coordinata) file >> n; x1 = new double[n]; x2 = new double[n]; x3 = new double[n]; for (i=0;i> x1[i] >> x2[i] >> x3[i]; } //Identifico la coppia con diff. minima in modulo int ind1,ind2; double xdiff,diff=100000; for (i=0;i