Compilare: user.c: In function ‘main’: user.c:21:42: warning: variable ‘minl’ set but not used [-Wunused-but-set-variable] int n,m,i,j,maxx,a,b,c,d,lin,col,min,minl; ^ user.c:21:38: warning: variable ‘min’ set but not used [-Wunused-but-set-variable] int n,m,i,j,maxx,a,b,c,d,lin,col,min,minl; ^ user.c:23:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d\n",&n,&m); ^ user.c:26:19: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%c",&q); ^ user.c:32:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%c",&q); ^