Compilare: user.cpp:3:0: warning: "MAXLONG" redefined [enabled by default] #define MAXLONG 99900000000 ^ In file included from user.cpp:2:0: /usr/include/values.h:46:0: note: this is the location of the previous definition #define MAXLONG LONG_MAX ^ user.cpp: In function ‘int main()’: user.cpp:19:19: warning: overflow in implicit constant conversion [-Woverflow] cost[i][j]=MAXLONG; ^ user.cpp:3:17: warning: overflow in implicit constant conversion [-Woverflow] #define MAXLONG 99900000000 ^ user.cpp:57:20: note: in expansion of macro ‘MAXLONG’ int minim=MAXLONG; ^ user.cpp:14:20: warning: unused variable ‘cx’ [-Wunused-variable] int n,k,j,i,x,cx,i1,nod1,nod2,y,p,v; ^ user.cpp:64:16: warning: ‘v’ may be used uninitialized in this function [-Wmaybe-uninitialized] c[v]=0; ^