Compilare: user.c:6:5: warning: conflicting types for built-in function ‘pow’ [enabled by default] int pow(int a,int n){ ^ user.c: In function ‘main’: user.c:24:17: warning: operation on ‘n’ may be undefined [-Wsequence-point] if(n<m)n^=m^=n^=m; ^ user.c:15:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("chomp.in","r",stdin); ^ user.c:16:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("chomp.out","w",stdout); ^ user.c:18:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i",&t); ^ user.c:23:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i%i",&n,&m); ^