42.string length

1. Using function

#include <stdio.h>

#include <string.h>

int main()

{

   char a[100];

   int length;

   printf("Enter a string to calculate it's length\n");

   gets(a);

   length = strlen(a);

   printf("Length of entered string is = %d\n",length);

   return 0;

}

2.Without function

#include <stdio.h>

int main()

{

   char array[100], *pointer;

   int length = 0;

   printf("Enter a string\n");

   gets(array);

   pointer = array;

   while(*(pointer+length))

      length++;

   printf("Length of entered string = %d\n",length);

   return 0;

}