c_ch01_ex12.c

/*Exercise 1-12. Write a program that prints its input one word per line.*/
#include <stdio.h>
int main()
{
        int flag = 1, c;
        while ((c = getchar()) != EOF) {
                if (c == ' ' || c == '\t' || c == '\n') {
                        if (flag == 0) {
                                putchar('\n');
                                flag = 1;
                        }
                } else {
                        putchar(c);
                        flag = 0;
                }
        }
        return 0;
}