WordCount

#include <iostream>
using namespace std;
int main(void) {
  const char *p = "This is my computer.";
  int count = 0;
  for (int in_word = 0; *p; p++) {
    if (*p == ' ' || *p == '.') {
      if (in_word) {
        count++;
        in_word = 0;
      }
    } else {
      in_word = 1;
    }
  }
  cout << "①単語数= " << count << endl;
}