Answer Posted / moinom

#include <iostream>
#include <conio>

void reverse(char a[], int s, int sc );

void reverse(char a[], int s, int sc ){

if ((sc-s)<(s-1))
{
a[sc-s]^=a[s-1];
a[s-1]^=a[sc-s];
a[sc-s]^=a[s-1];
reverse (a, s-1, sc) ;

}

}

void main (){


char a[]="ABCDEFG";

reverse(a, 7, 7);
cout<<a;
getch(); //i just use it to freeze the screen

}

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