PAT BASIC 1039 到底买不买

题目：https://pintia.cn/problem-sets/994805260223102976/problems/type/7

#include<iostream>
#include<string.h>
int main()
{
	char s_sold[1000];
	char s_buy[1000];
	scanf("%s", &s_sold);
	scanf("%s", &s_buy);
	for (int i = 0;i < strlen(s_buy);i++)
	{
		for (int j = 0;j < strlen(s_sold);j++)
		{
			if (s_buy[i] == s_sold[j])
			{
				s_buy[i] = -1;
				s_sold[j] = -1;
				break;
			}
		}

	}
	int tag = 0;
	for (int i = 0;i < strlen(s_buy);i++)
	{
		if (s_buy[i] != -1)
		{
			tag++;
		}
	}
	if (tag == 0)
	{
		printf("Yes ");
		printf("%d", strlen(s_sold) - strlen(s_buy));
	}
	else
	{
		printf("No ");
		printf("%d", tag);
	}
	
}