Program for given statement print word in New line

/* Program 1_12 */
/* Count number of line, space and char */
/* Replace a char with specific newline */
/* Add blank space in first input */


#include<stdio.h>

int main()
{
int c,nl,nc,ns,nt;
nl=nc=ns=nt=0;
int d,r, prevd, prevr;
printf("Enter which char to replace :: ");

/* prev is stored before of \n */
while((d = getchar()) != '\n' && (prevd = d));
d = prevd;
printf("Enter word below \n");
while((c=getchar()) != EOF)
{
++nc;
if(c==' ')
++ns;
if(c=='\n')
++nl;
if(c=='\t')
++nt;
/* Replace a char with A */
if(c==d)
putchar('\n');
else
putchar(c);
}
printf("total char=%2d, newline=%2d, space=%2d tabs=%2d\n",nc,nl,ns,nt);
return 0;

}

/* Written by: Prakash Katudia <prakash.katudia@gmail.com> */