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  • 1054 The Dominant Color (20 分)

    1054 The Dominant Color (20 分)
     

    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, 8), 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 (≤) and N (≤) which are the resolutions of the image. Then N lines follow, each contains M digital colors in the range [0). 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

    这种纯暴力都能过,
    虽然数据结构书上有一种找过半的那个算法,
    在但是麻烦呐。

     1 #include <bits/stdc++.h>
     2 
     3 using namespace std;
     4 int x;
     5 int an[(2<<24) + 10];
     6 int n,m;
     7 
     8 int main(){
     9     scanf("%d%d", &n,&m);
    10     for(int i = 0; i < m; i ++){
    11         for(int j = 0 ; j < n; j++){
    12             scanf("%d", &x);
    13             an[x]++;
    14         }
    15     }
    16     for(int i = 0; i <= (2<<24); i++){
    17         if(an[i] > (n*m)/2){
    18             printf("%d
    ", i);
    19             return 0;
    20         }
    21     }
    22     return 0;
    23 }



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  • 原文地址:https://www.cnblogs.com/zllwxm123/p/11185938.html
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