Fold task

fold.c

#include <stdio.h>

int main(void)
{
  char t;
  int n;

  int pc, c, nc, nw;


  //  scanf("%d", &n);
  n = 10;

  nc = nw = 0;
  while ((c = getchar()) != EOF) {
    if (nc != 0 && nc % n == 0) {
      /* abdurahmon hasanov */
      if (c == ' ' || c == '\t' || c == ',' || c == '.' || c == ';' || c == ':')
	putchar('\n');
      else if (c != ' ') {
	putchar(c);
	continue;
      }
    }


    putchar(c);
    ++nc;
    
    pc = c;
    if (c == '\n')
      nc = 0;
  }
}