Length of the string without using library function
#include<stdio.h>
main()
{
char s[20];
int i = 0 ;
printf("\n Enter a string:
");
gets(s);
while(s[i]
!= '\0')
{
i++;
}
printf("\n
Length of string: %d", i );
}
Output:
Enter a string: Hello Hii
Length of
string: 9