3090694_ac_561ms_196k.c

北大大牛代码 1240道题的原代码 超级权威

#include <stdio.h>
#include <string.h>

char str[30001];

int main()
{
	int len, n, st;
	char tmp[30001];

	str[0] = '\0';
	while(gets(tmp))
	{
		strcat(str,tmp);
	}
	len = strlen(str);
	if(len==0)
		puts("No");
	st = 0;
	while(len > 1)
	{
		n = (st+1998)%len;
		strcpy(&str[n],&str[n+1]);
		len--;
		st = n;
	}
	if(str[0]=='?')
		puts("Yes");
	else
	{
		if(str[0]==' ')
			puts("No");
		else
			puts("No comments");
	}
	return 0;
}