Number without zeros X10549

Write a program that treats a sequence of integers greater than zero. For each number, the program outputs the value that results from eliminating its 0 digits. For example, eliminating 0 digits from 3097601 results in 39761.

The program must implement and use the following RECURSIVE function:

// Pre: x > 0
// Post: returns the value of x without 0 digits
int remove_zeros(int x) {
    ...
}

Exam score: 2.00 Automatic part: 40.00%

Input

The input is a sequence of integers greater than zero.

Output

For each number, the program outputs the value that results from eliminating its 0 digits.

Observation

A non-recursive implementation of the function invalidates the problem.