How to reverse a string using a recursive function, without
swapping or using an extra memory?
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Answer Posted / pritam
/*
reverse string between start and end indexes of a string
*/
void reverse( char* str, int start, int end )
{
if( str && ( start < end ) )
{
*( str + start ) ^= *( str + end ) ^= *( str + start )
^= *( str + end ) ;
reverse( str, ++start, --end );
}
}
int main()
{
char sample[] = "My String!";
reverse( str, 0, strlen( sample )-1 )
}
| Is This Answer Correct ? | 15 Yes | 17 No |
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