Compilare: user.c: In function ‘main’: user.c:10:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d",&n,&m,&k); ^ user.c:13:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&a[i]); ^ user.c:15:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&b[i]); ^ user.c:31:27: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(i==x&&j<y){ ^ user.c:31:21: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(i==x&&j<y){ ^