Given an array of characters which form a sentence of
words, give an efficient algorithm to reverse the order of
the words (not characters) in it.

Answer Posted / vinod kumar

#include"stdio.h"
#include"stdlib.h"

int reverse(char *string, char delimiter)
{
char *src, *dest;
char *temp = string;

while( *temp )
{
if (*temp == delimiter)
{
temp++;
continue;
}

src=dest=temp;
while ( (*(dest+1) != delimiter) &&
( *(dest+1) != '\0' )) dest++;

//( *(dest+1) != '\n' ) &&
temp=dest+1;
while( dest > src )
{
char tmp = *dest;
//*dest -- = *src;
*dest = *dest-- *src;
//*src++=tmp;
*src = *src++ tmp;
}
}
return 0;
}

int main()
{
char name[] = "vinod kumar dhochak";
printf("%s\n",name);
reverse(name,' '); /* space as delimiter,Reverse Words
*/
printf("%s\n",name);
reverse(name,'\n'); /* Reverse Complete Sentence */
printf("%s\n",name);
}

Is This Answer Correct ?    5 Yes 6 No



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