Compilare: user.cpp: In function ‘int main()’: user.cpp:10:25: warning: unused variable ‘smax’ [-Wunused-variable] int smin=2000000000,smax,s; ^ user.cpp:30:45: warning: ‘sol2’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(out,"%d %d %d ",sol,sol1+1,sol2); ^ user.cpp:30:44: warning: ‘sol1’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(out,"%d %d %d ",sol,sol1+1,sol2); ^ user.cpp:15:13: warning: ‘s’ may be used uninitialized in this function [-Wmaybe-uninitialized] s+=a; ^