View Compilation Error

0_0_36103788_20419.cpp: In function 'int main()':
0_0_36103788_20419.cpp:36:4: error: 'x' was not declared in this scope
    x = Find(e[pos].a);
    ^
0_0_36103788_20419.cpp:37:4: error: 'y' was not declared in this scope
    y = Find(e[pos].b);
    ^
0_0_36103788_20419.cpp:39:5: error: 'p' was not declared in this scope
     p[x] = y;
     ^