// Table-driven word count program.
// Intended to duplicate the behavior of
// justcount.c but be faster.
#include <stdio.h>
#include <string.h>

int main(int argc, char **argv)
{
  unsigned char buf[128];
  int n = 0;

  char isalpha[256] = {0};
  for (int i = 'a'; i <= 'z'; i++) {
    isalpha[i] = 1;
    isalpha[i + 'A' - 'a'] = 1;
  }

  char isnonalpha[256] = {0};
  for (int i = 0; i != 256; i++) {
    isnonalpha[i] = !isalpha[i];
  }
  isnonalpha['\0'] = 0;

  for (;;) {
    if (!fgets((char*)buf, sizeof buf, stdin)) break;
    for (unsigned char *q = buf;;) {
      while (isnonalpha[*q]) q++;
      if (!*q) break;
      while (isalpha[*q]) q++;
      n++;
    }
  }
  printf("%d total words\n", n);
  return 0;
}