/in/foo.cc: In function 'int FindMinPos(int, int*)':
/in/foo.cc:15:9: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return x;
         ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:24:26: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<FindMinPos(n1,a)<<' '<<FindMinPos(n2,b);
                          ^~~
/in/foo.cc:24:47: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<FindMinPos(n1,a)<<' '<<FindMinPos(n2,b);
                                               ^