UVa 11687 - Digits (simulation; straightforward)

Link:https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=78&page=show_problem&problem=2734
Sol:

#include <cstdio>
	#include <cstring>
	int recurse(int length, int count)
	{
	if (length == 1)
	return count + 1;
	int newLength(0), oldLength(length);
	for (; length; length /= 10, ++newLength);
	return recurse(newLength, count + 1);
	}
	int main()
	{
	char input[1000010];
	while (scanf("%s", input), input[0] != 'E')
	{
	if (strlen(input) == 1 && input[0] == '1')
	printf("1\n");
	else
	printf("%d\n", recurse(strlen(input), 1));
	}
	}