#include <stdio.h>
#include <conio.h>
#include <string.h>

void main()
{
char str[10] temp;
int i len;
printf( Enter String : );
scanf( s str);
len strlen(str)-1;
for(i 0;i<strlen(str)/2;i++)
{
temp str[i];
str[i] str[len];
str[len--] temp;
}
printf( s str);
getch();

}

#include <stdio.h>
#include <conio.h>
#include <string.h>

void main()
{
char *str;
int i len;

//not using any temp variable and assume we can use only string array and length

printf( Enter String : );
scanf( s str);
len strlen(str)-1;
for(i 0;i<strlen(str)/2;i++)
{
str[i]+ str[len];
str[len] str[i]-str[len];
str[i] str[i]-str[len--];
}
printf( Reverse String is : s str);
getch();
}

program to reverse a string using recursive function:

---------------------------------------------------

void reverse (int index char *str ) ;

int main (void)

{

char name[100];

printf ( Enter a mutli-word string ) ;

gets(name) ;

reverse (strlen(name) name ) ;

}

void reverse (int index char *str )

{

if (--index < 0 )

{

return ;

}

else

{

putchar ( *(str + index) ) ;

reverse (index str) ;

}

}

Logic:

-----

For eg : let's say the user has entered 50 characters.

then index is initially 50.

when reverse() function is called for the first time then

index will be 50 .we first decrement the index by 1 so that

it will become 49 and i am printing the 49th character i.e last

character in the string then reverse() function is called again

with index as 49 and str pointing to 49th character and again

the index will be decremented by 1 so that it will become 48 this

will continue until zeroth index is reached.

i hope this will solve the problem that you have reported for any

queries you can mail me.

Regards

Syed