HDU 1075 What Are You Talking About （strings）

What Are You Talking About

Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 102400/204800 K (Java/Others)

Total Submission(s): 15966    Accepted Submission(s): 5177

Problem Description

Ignatius is so lucky that he met a Martian yesterday. But he didn't know the language the Martians use. The Martian gives him a history book of Mars and a dictionary when it leaves. Now Ignatius want to translate the history book
into English. Can you help him?

 

Input

The problem has only one test case, the test case consists of two parts, the dictionary part and the book part. The dictionary part starts with a single line contains a string "START", this string should be ignored, then some lines
follow, each line contains two strings, the first one is a word in English, the second one is the corresponding word in Martian's language. A line with a single string "END" indicates the end of the directory part, and this string should be ignored. The book
part starts with a single line contains a string "START", this string should be ignored, then an article written in Martian's language. You should translate the article into English with the dictionary. If you find the word in the dictionary you should translate
it and write the new word into your translation, if you can't find the word in the dictionary you do not have to translate it, and just copy the old word to your translation. Space(' '), tab('\t'), enter('\n') and all the punctuation should not be translated.
A line with a single string "END" indicates the end of the book part, and that's also the end of the input. All the words are in the lowercase, and each word will contain at most 10 characters, and each line will contain at most 3000 characters.

 

Output

In this problem, you have to output the translation of the history book.

 

Sample Input

START
from fiwo
hello difh
mars riwosf
earth fnnvk
like fiiwj
END
START
difh, i'm fiwo riwosf.
i fiiwj fnnvk!
END

 

Sample Output

hello, i'm from mars.
i like earth!

Hint

Huge input, scanf is recommended.

解析：将词典存在map中，然后对于history中的每一个词都查找能否在词典中找到，若能找到。则替换之；若没有，则直接输出。

AC代码：

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

map<string, string> m;

int main(){
    #ifdef sxk
        freopen("in.txt", "r", stdin);
    #endif // sxk

    string s, ss;
    cin>>s;
    while(cin>>s){
        if(s == "END") break;
        cin>>ss;
        m[ss] = s;
    }
    cin>>s;
    getchar();
    ss = "";
    while(getline(cin, s)){
        if(s[0] == 'E' && s[1] == 'N' && s[2] == 'D') break;
        int n = s.size();
        for(int i=0; i<n; ){
            while(i < n && isalpha(s[i]) && s[i] != ' ') ss += s[i ++];
            if(ss == ""){ cout<<s[i ++]; continue; }
            if(m.count(ss)) cout<<m[ss];
            else cout<<ss;
            ss = "";
        }
        puts("");
    }
    return 0;
}