Compilare: user.cpp: In function ‘int main()’: user.cpp:9:38: warning: unused variable ‘di2’ [-Wunused-variable] static int v,n,m,c,b[401][401],di1=0,di2=1,q[3][160000],max; ^ user.cpp:20:9: warning: variable ‘ad’ set but not used [-Wunused-but-set-variable] int d=0,ad=0,di=0; ^ user.cpp:94:16: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result] system("pause"); ^