View Compilation Error

0_0_22973687_12046.cpp: In function 'int main()':
0_0_22973687_12046.cpp:59:20: error: 'u' was not declared in this scope
             x=Find(u),y=Find(v);
                    ^
0_0_22973687_12046.cpp:59:30: error: 'v' was not declared in this scope
             x=Find(u),y=Find(v);
                              ^