Compilare: user.c: In function ‘lee’: user.c:24:23: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(f[cx[i]+dx[j]][cy[i]+dy[j]]==0) ^ user.c: In function ‘main’: user.c:65:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("barbar.in","r",stdin); ^ user.c:66:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("barbar.out","w",stdout); ^ user.c:67:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.c:70:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",v); ^