HDU 1004（map的使用）

Posted 2020-12-03 yinbiao

传送门：

http://acm.hdu.edu.cn/showproblem.php?pid=1004

Let the Balloon Rise

Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 143275    Accepted Submission(s): 56670

Problem Description

Contest time again! How excited it is to see balloons floating around. But to tell you a secret, the judges‘ favorite time is guessing the most popular problem. When the contest is over, they will count the balloons of each color and find the result.

This year, they decide to leave this lovely job to you.

 

 

Input

Input contains multiple test cases. Each test case starts with a number N (0 < N <= 1000) -- the total number of balloons distributed. The next N lines contain one color each. The color of a balloon is a string of up to 15 lower-case letters.

A test case with N = 0 terminates the input and this test case is not to be processed.

 

 

Output

For each case, print the color of balloon for the most popular problem on a single line. It is guaranteed that there is a unique solution for each test case.

 

 

Sample Input

5

green

red

blue

red

red

3

pink

orange

pink

0

 

 

Sample Output

red

pink

 

 

Author

WU, Jiazhi

 

 

题目意思：

找颜色单词出现得最多的那个单词

分析：

map的用法

很方便呀

原来都没有怎么用过

第一次用

开心

好用

code：

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n;
    while(cin>>n,n)
    {
        map<string,int> mm;
        map <string,int>::iterator it;
        string ch;
        for(int i=0;i<n;i++)
        {
            cin>>ch;
            mm[ch]++;
        }
        int sum=0;
        string str;
        for(it=mm.begin();it!=mm.end();it++)
        {
           if(it->second>sum)
           {
               sum=it->second;
               str=it->first;
           }
        }
        cout<<str<<endl;
    }
    return 0;
}