Answer Happy

The following C program requests four string from the user,
sorts the four strings alphabetically and prints out the strings
alphabetically as well as the string length.
A typical usage input and output is shown below:
Enter a string less than 50 characters in length:
zebra
Enter a string less than 50 characters in length:
monkey
Enter a string less than 50 characters in length:
baboon
Enter a string less than 50 characters in length:
ape
ape, [3]
baboon, [6]
monkey, [6]
zebra, [5]
Complete the following C program using the code provided.
#include <stdio.h>
#include <string.h>
void swapstr(char *str1, char *str2);
void main(void)
{
//line 1
int i = 0, j = 3;
do {
printf("Enter a string less than 50
characters in length: ");
//line 2
i++;
//line 3
//sort strings alphabetically
//line 4
//line 5
//line 6
}//for
j--;
}//while
//print sorted strings and its length
//line 7
//line 8
}
}//main
void swapstr(char *str1, char *str2)
{
char temp[51];
//line 9
//line 10
//line 11
//line 12
}//if
}//swap