18.28. Write a function that gets a string and reverses all characters.

#include<stdio.h>
#include<conio.h>
int Strrev(char st[])
{
int i,l;

char temp;

for(l=0;st[l];l++);

for(i=0;i<l/2;i++)

{

temp=st[i];

st[i]=st[l-i-1];

st[l-i-1]=temp;

}

}
void main ()
{

char st[100];
clrscr();
printf("Enter any line of text: ");
gets(st);

Strrev(st);

printf("Reverse of the line is: %s",st);

getch ();
}