/in/foo.cc: In function 'int FindMinPos(int, int*)':
/in/foo.cc:15:12: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
     return x;
            ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:24:29: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
     cout<<FindMinPos(n1,a)<<' '<<FindMinPos(n2,b);
                             ^~~
/in/foo.cc:24:50: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
     cout<<FindMinPos(n1,a)<<' '<<FindMinPos(n2,b);
                                                  ^