/in/foo.cc: In function 'int main()':
/in/foo.cc:30:8: warning: unused variable 'min' [-Wunused-variable]
    int min=max;f=1;
        ^
/in/foo.cc:43:3: warning: 'f' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if(f==0) cout<<"No"<<endl;
   ^