Compilare: user.cpp: In function ‘int main()’: user.cpp:8:58: warning: variable ‘suc’ set but not used [-Wunused-but-set-variable] int m,n,r,c,a[20][20],z=0,x,y,i,j,s=0,s1=0,su=0,su1=0,suc=0,sul=0,ok=0,nrc=0,nrl=0; ^ user.cpp:8:64: warning: variable ‘sul’ set but not used [-Wunused-but-set-variable] int m,n,r,c,a[20][20],z=0,x,y,i,j,s=0,s1=0,su=0,su1=0,suc=0,sul=0,ok=0,nrc=0,nrl=0; ^