Behind the scenes in the computer's memory, color is always talked about as a series of 24 bits of information for each pixel. In an image, the color with the largest proportional area is called the dominant color. A strictly dominant color takes more than half of the total area. Now given an image of resolution M by N (for example, 800×600), you are supposed to point out the strictly dominant color.

Input Specification:

Each input file contains one test case. For each case, the first line contains 2 positive numbers: M (≤800) and N (≤600) which are the resolutions of the image. Then N lines follow, each contains M digital colors in the range [0,2​24​​). It is guaranteed that the strictly dominant color exists for each input image. All the numbers in a line are separated by a space.

Output Specification:

For each test case, simply print the dominant color in a line.

Sample Input:

5 3
0 0 255 16777215 24
24 24 0 0 24
24 0 24 24 24

Sample Output:

24

代码如下

#include <cstdio>
#include <cstring>
#include <algorithm>
#include <iostream>
#include <map>
using namespace std;
int m,n;
map<string,int>ma;
string s,ans;
int Max=-0x3f3f3f3f;
int main()
{
    scanf("%d%d",&m,&n);
    for (int i=0;i<n;i++)
    {
        for (int j=0;j<m;j++)
        {
            cin>>s;
            ma[s]++;
            if(Max<ma[s])
            {
                ans=s;
            }
        }
    }
    cout<<ans<<endl;
    return 0;
}