#include <stdio.h>
#define OUT 0
#define IN 1
main()
{
int state;
state = OUT;
char c;
while((c=getchar())!=EOF)
{
if(c==' '||c=='\n'||c=='\t')
{
state = IN;
}
else if(state==IN)
{
state = OUT;
putchar('\n');
putchar(c);
}
else
{
putchar(c);
}
}
}
运行结果: