foo.cc: In function 'int Findmax(int)':
foo.cc:16:9: warning: 'imax' may be used uninitialized in this function [-Wmaybe-uninitialized]
   16 |  return imax;
      |         ^~~~
foo.cc: In function 'int main()':
foo.cc:23:17: warning: 'imax' may be used uninitialized in this function [-Wmaybe-uninitialized]
   23 |  cout<<Findmax(n);
      |                 ^

[Hydro](https://hydro.ac)提供评测服务