90wa求调

#include<bits/stdc++.h>
using namespace std;
string s[105],f[105],o;
int main(){
	int a,k=0;
	cin>>a;
	for(int i=1;i<=a;i++){
		cin>>s[i];
		
		for(int j=0;j<s[i].size();j++){
			if(s[i][j]>'A'&&s[i][j]<'Z')s[i][j]+='a'-'A';
		}
		f[i]=s[i];
	}
	cin.ignore();
	getline(cin,o);
	int u=0;
	for(int i=0;i<o.size();i++){
		if(o[i]>'A'&&o[i]<'Z')o[i]+='a'-'A';
		
		if(o[i]=='.'||o[i]==','||o[i]==' '){
			string d=o.substr(u,i-u);
			for(int j=1;j<=a;j++){
				if(d==s[j]){
					k++;
					s[j]="+";
					break;
				}
			}
			u=i+1;
			//cout<<d<<1<<endl;
		}
		if(o[i]=='.'){
			for(int j=1;j<=a;j++){
				s[j]=f[j];
			}
		}
	}
	cout<<k;
	return 0;
}