CSUOJ 1826 Languages map+stringstream
Description
The Enterprise has encountered a planet that at one point had been inhabited. The onlyremnant from the prior civilization is a set of texts that was found. Using a small set of keywordsfound in various different languages, the Enterprise team is trying to determine what type of beingsinhabited the planet.
Input
The first line of input will be N (1 ≤ N ≤ 100), the number of different known languages. Thenext N lines contain, in order, the name of the language, followed by one or more words in thatlanguage, separated with spaces. Following that will be a blank line. After that will be a series oflines, each in one language, for which you are to determine the appropriate language.Words consist of uninterrupted strings of upper or lowercase ASCII letters, apostrophes, orhyphens, as do the names of languages. No words will appear in more than one language.No line will be longer than 256 characters. There will be at most 1000 lines of sample text.Every sample text will contain at least one keyword from one of the languages. No sampletext will contain keywords from multiple languages. The sample text may contain additionalpunctuation (commas, periods, exclamation points, semicolons, question marks, and parentheses)and spaces, all of which serve as delimiters separating keywords. Sample text may contain wordsthat are not keywords for any specific language.Keywords should be matched in a case-insensitive manner.
Output
For each line of sample text that follows the blank line separating the defined languages, print asingle line that identifies the language with which the sample text is associated.
Sample Input
4 Vulcan throks kilko-srashiv k'etwel Romulan Tehca uckwazta Uhn Neemasta Menk e'satta prah ra'sata Russian sluchilos Dif-tor heh, Spohkh. I'tah trai k'etwel Uhn kan'aganna! Tehca zuhn ruga'noktan!
Sample Output
Vulcan Romulan
Hint
思路：使用 stringstream类读取字符串，通过>>操作分离出单词，然后进行判断
#include<stdio.h>
#include<iostream>
#include<algorithm>
#include<sstream>
#include<string>
#include<string.h>
#include<ctype.h>
#include<map>
using namespace std;
map<string, string>m;
void lower(string &s)
{
for (int i = 0; i < s.length(); i++)
{
s[i] = tolower(s[i]);
}
}
int main()
{
int T;
m.clear();
string a, b,name,s;
cin >> T;
getchar();
for (int i = 0; i < T; i++)
{
getline(cin, a);
stringstream ss(a);
ss >> name;
while (ss >> b)
{
lower(b);
m[b] = name;
}
}
while (getline(cin, s))
{
string tmp;
for (int i = 0; i < s.length(); i++)
{
if (s[i] == ',' || s[i] == '.' || s[i] == '!' || s[i] == ';' || s[i] == ' ? ' || s[i] == '(' || s[i] == ')')
s[i] = ' ';
}
stringstream ss1(s);
while (ss1 >> tmp)
{
lower(tmp);
if (m.count(tmp))
{
cout << m[tmp] << endl;
break;
}
}
}
return 0;
}
/**********************************************************************
Problem: 1826
User: leo6033
Language: C++
Result: AC
Time:68 ms
Memory:2348 kb
**********************************************************************/
