number of digits in int c 2b 2b

1int length = 1;
2int x = 234567545;
3while ( x /= 10 )
4   length++;
5

1int iNums = 12345;
2int iNumsSize = 5;
3for (int i=iNumsSize-1; i>=0; i--) {
4    int y = pow(10, i);
5    int z = iNums/y;
6    int x2 = iNums / (y * 10);
7    printf("%d-",z - x2*10 );
8}