Where I am lacking

Question

#include <iostream>
using namespace std;
int main()
{
int x;
int y;
int z=0;
int a;
cin>>x;
{x%10=a;
cout<<a;}
{z=x-a;}
{y=z/10;
cout<<y;}
return 0;
}/*to print the ones and tens digit of a number entered by user
can any tell where i am lacking*/

Answer 1

Replace x%10=a with a=x%10. You can't assign an uninitialized variable to an expression.

Answer 2

thank