View Compilation Error

0_0_34338253_28764.cpp: In function 'int panduan(int)':
0_0_34338253_28764.cpp:15:28: error: lvalue required as left operand of assignment
    if(z[i]==z[x]||(abs(i,x)=abs(z[i],z[x])))
                            ^
0_0_34338253_28764.cpp: In function 'int main()':
0_0_34338253_28764.cpp:30:10: error: 'cin' was not declared in this scope
    while(cin>>x&&x!=0)
          ^
0_0_34338253_28764.cpp:32:6: error: invalid types 'int[int]' for array subscript
   x[k]=x[k]+1;
      ^
0_0_34338253_28764.cpp:32:11: error: invalid types 'int[int]' for array subscript
   x[k]=x[k]+1;
           ^