C - The C Answer (2nd Edition) - Exercise 1-9

/*
Write a program to copy its input to its output, replacing each string of one or
more blanks by a single blank.
*/

#include <stdio.h>

#define NONBLANK 'a'

/* replace string of blanks with a single blank */
main()
{
	int c, lastc;

	lastc = NONBLANK;
	while((c = getchar()) != EOF)
	{
		if(c != ' ')
		{
			putchar(c);
		}
		if(c == ' ')
		{
			if(lastc != ' ')
			{
				putchar(c);
			}
		}
		lastc = c;
	}
}

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时间： 2024-12-19 21:52:01

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