count the length of a sentence without string function

count the length of a sentence

 

//HOW MANY LETTER ARRY

#include<stdio.h>

int main()

{

    char a[100];

    int i,c=0;

    gets(a);

   //scanf("%s",a);

   for(i=0;a[i]!='\0';i++)

   {

       c=c++;

   }

    printf("%d",c);

    return 0;

}