View Compilation Error

0_0_25071328_32143.cpp: In function 'void Union(int, int)':
0_0_25071328_32143.cpp:13:8: error: declaration of 'int rx' shadows a parameter
    int rx = find(x);
        ^
0_0_25071328_32143.cpp:13:18: error: 'x' was not declared in this scope
    int rx = find(x);
                  ^
0_0_25071328_32143.cpp:14:8: error: declaration of 'int ry' shadows a parameter
    int ry = find(y);
        ^
0_0_25071328_32143.cpp:14:18: error: 'y' was not declared in this scope
    int ry = find(y);
                  ^