View Compilation Error

0_0_34786691_23643.cpp: In function 'void Union(int, int)':
0_0_34786691_23643.cpp:23:6: error: declaration of 'int x' shadows a parameter
  int x = Find(x);
      ^
0_0_34786691_23643.cpp:24:6: error: declaration of 'int y' shadows a parameter
  int y = Find(y);
      ^