wc impl

#include <stdio.h>
#include <ctype.h>

int main() {
  int lines = 0, wordCnt = 0, chCnt = 0;
  char ch, prev = ' ';
  while ((ch = getchar()) != EOF) {
    if (ch == '\n') {
      lines++;
    }
    if (isspace(ch) && !isspace(prev)) {
      wordCnt++;
    }
    prev = ch;
    chCnt++;
  }
  printf("%d %d %d\n", lines, wordCnt, chCnt);
  return 0;
}