Compilare: user.cpp: In function ‘void calc_dist_min_margine(int, int, int)’: user.cpp:24:31: warning: unused variable ‘d’ [-Wunused-variable] int dist_vert=0,dist_or=0,d=0; ^ user.cpp: In function ‘int main()’: user.cpp:70:16: warning: unused variable ‘c1’ [-Wunused-variable] int n, c1, c2, matr[2000][2000], matr2[2000][2000]; ^ user.cpp:70:20: warning: unused variable ‘c2’ [-Wunused-variable] int n, c1, c2, matr[2000][2000], matr2[2000][2000]; ^ user.cpp:70:24: warning: unused variable ‘matr’ [-Wunused-variable] int n, c1, c2, matr[2000][2000], matr2[2000][2000]; ^ user.cpp:70:42: warning: unused variable ‘matr2’ [-Wunused-variable] int n, c1, c2, matr[2000][2000], matr2[2000][2000]; ^