1946315_ac_0ms_60k.c

来自「北大大牛代码 1240道题的原代码 超级权威」· C语言 代码 · 共 42 行

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

int main()
{
	int n, i, len, no;
	int mark[27];
	char c[100];

	memset(mark,0,sizeof(mark));
	while(scanf("%d",&n)==1&&n)
	{
		scanf("%s",c);
		no = 0;
		len = strlen(c);
		for(i = 0; i < len; i++)
		{
			if(mark[c[i]-'A']==0)
			{
				if(n > 0)
				{
					n--;
					mark[c[i]-'A']++;
				}
				else
					no++;
				mark[c[i]-'A']++;
			}
			else
			{
				if(mark[c[i]-'A']==2)
					n++;
				mark[c[i]-'A'] = 0;
			}
		}
		if(no == 0)
			printf("All customers tanned successfully.\n");
		else
			printf("%d customer(s) walked away.\n",no);
	}
	return 1;
}