PAT(BASIC)1039. 到底买不买（20）

#include<iostream>
#include<map>
#include<string>
int main(void){
	using namespace std;
	string str_solder,str_buyer;
	map<char,int> solder;
	map<char,int> buyer;
	cin>>str_solder>>str_buyer;
	for(auto c:str_solder)
		++solder[c];
	for(auto c:str_buyer)
		++buyer[c];

	int lack=0;

	for(auto p:buyer){
		if(p.second>solder[p.first])
			lack+=(p.second-solder[p.first]);

	}
	if(lack==0)
		cout<<"Yes "<<(str_solder.size()-str_buyer.size());
	else
		cout<<"No "<<lack;
	system("pause");
}