Concatenate two String in C.

#include <stdio.h>

int main()

{

    char array1[100];

    char array2[100];

    int i,j,count=0;

    printf("Please Enter The 1st massage:");

    gets(array1);

    printf("Please enter the 2nd massage:");

    gets(array2);

    for(i=0;array1[i]!='';i++)  /// counting the array1 length

    {

        count++;

    }

    for(i=count,j=0;array2[j]!='';j++,i++)

    {

        array1[i]=array2[j];        ///saving the array2 in array1 after max length of array1

    }

    array1[i]='';  ///last character assign as NULL

    printf("a
Massage: %s",array1);

   

   

    return 0;

}