View Compilation Error

0_0_23463218_7207.cpp: In function 'int Union(int, int)':
0_0_23463218_7207.cpp:5:18: error: 'queue' was not declared in this scope
      if(queue(a,b))
                  ^
0_0_23463218_7207.cpp: In function 'int queue(int, int)':
0_0_23463218_7207.cpp:10:24: error: 'getfather' was not declared in this scope
      int a1=getfather(a);  
                        ^
0_0_23463218_7207.cpp: In function 'int findd(int)':
0_0_23463218_7207.cpp:20:25: error: 'fa' was not declared in this scope
         father[x]=findd(fa[x]);  
                         ^
0_0_23463218_7207.cpp: In function 'int main()':
0_0_23463218_7207.cpp:33:11: error: expected ';' before 'for'
           for(int j=0;j<b;j++)
           ^
0_0_23463218_7207.cpp:33:23: error: 'j' was not declared in this scope
           for(int j=0;j<b;j++)
                       ^