@1-1 CCF 2021-04-1 gray histogram

Title Description

Examples

Source code

#include<iostream>
using namespace std;
int arr[300];
int main()
{
    
	int n, m, l;
	int mumber;
	cin >> n >> m >> l;
	for (int i = 0; i < n; i++)
	{
    
		for (int j = 0; j < m; j++)
		{
    
			cin >> mumber;
			arr[mumber]++;
		}
	}
	for (int i = 0; i < l; i++)
	{
    
		cout << arr[i] << " ";
	}
	return 0;
} 

About this problem

In fact, it is the occurrence of each number in the statistical matrix It can be done with a counting array