Compilare: user.c: In function ‘main’: user.c:13:3: warning: format ‘%d’ expects argument of type ‘int *’, but argument 3 has type ‘int’ [-Wformat=] sscanf(buffer,"%d",aux); ^ user.c:6:20: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] int a[17][17],i,j,ret,aux,row,col=0,sum_poz,sum_neg,m,n; ^ user.c:10:7: warning: ignoring return value of ‘fread’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer,m*n*sizeof(int),1,in); ^ user.c:13:9: warning: ‘aux’ may be used uninitialized in this function [-Wmaybe-uninitialized] sscanf(buffer,"%d",aux); ^ user.c:18:7: warning: ‘row’ may be used uninitialized in this function [-Wmaybe-uninitialized] row++; ^