2013-2014 ACM-ICPC Pacific Northwest Regional Contest L.Languages

题意略。

思路：

这种字符串的模拟题，应该熟练使用stringstream。

详见代码：

#include<bits/stdc++.h>
using namespace std;

map<string,string> mp;
vector<string> store;

void change(string& str){
    for(int i = 0;i < str.length();++i){
        str[i] = tolower(str[i]);
    }
}

int main(){
    std::ios::sync_with_stdio(false);
    cin.tie(0);
    int n;
    cin>>n;
    string str;
    getline(cin,str);
    for(int i = 0;i < n;++i){
        getline(cin,str);
        stringstream ss(str);
        string name,temp;
        ss>>name;
        while(ss>>temp){
            change(temp);
            mp[temp] = name;
        }
    }
    getline(cin,str);
    while(getline(cin,str)){
        for(int i = 0;i < str.length();++i){
            if(str[i] == ‘,‘ || str[i] == ‘.‘ || str[i] == ‘!‘ || str[i] == ‘;‘ || str[i] == ‘(‘
            || str[i] == ‘)‘ || str[i] == ‘?‘){
                str[i] = ‘ ‘;
            }
        }
        stringstream ss(str);
        store.clear();
        string temp;
        while(ss>>temp){
            change(temp);
            store.push_back(temp);
        }
        for(int i = 0;i < store.size();++i){
            if(mp.count(store[i])){
                cout<<mp[store[i]]<<endl;
                break;
            }
        }
    }
    return 0;
}

原文地址：https://www.cnblogs.com/tiberius/p/9382148.html