int main()
{
	const int size = 20;
	char str1[size] = "avadakedavra";
	char str2[size] = "abvdea";
	printf("number:%d",  str_cmp( str1,  str2));
}
int str_cmp(char* str1, char* str2)
{
	int i = 0;
	int j = 0;

	int count = 0;
	while (str1[i])
	{
		/*while (str2[j])
		{*/
			if (str1[i] - str2[j] == 0)
			{
				count++;
				i++;
				j = 0;

			}
			else
			{
				if (str2[j + 1])
				{
					j++;
				}
				else
				{ i++;
				j = 0;
				}

			}
			/*if (str1[i] && str2[j] && delta = 0)
			{
				str1[i] - str2[j] = 0;
				count++;
			}*/
		/*}*/

	}
 return count;
}