Compilare: main.cpp: In function 'int main()': main.cpp:42:31: warning: unused variable 'k' [-Wunused-variable] int t,n,m,a[140][140],i,j,k=0,ok=0,maxi=0,cont=0,x,y; ^ main.cpp:42:35: warning: variable 'ok' set but not used [-Wunused-but-set-variable] int t,n,m,a[140][140],i,j,k=0,ok=0,maxi=0,cont=0,x,y; ^~ main.cpp:42:54: warning: unused variable 'x' [-Wunused-variable] int t,n,m,a[140][140],i,j,k=0,ok=0,maxi=0,cont=0,x,y; ^ main.cpp:42:56: warning: unused variable 'y' [-Wunused-variable] int t,n,m,a[140][140],i,j,k=0,ok=0,maxi=0,cont=0,x,y; ^