[실5] 2563 - 색종이

#include <iostream>
#include <string>
#include <queue>

using namespace std;

int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);

	int arr[100][100]{ 0 };

	int n; cin >> n;

	for (size_t i = 0; i < n; i++)
	{
		int n1, n2; cin >> n1 >> n2;

		for (size_t j = n1; j < n1 + 10; j++)
		{
			for (size_t k = n2; k < n2 + 10; k++)
				arr[j][k] = 1;
		}
	}
	int sum = 0;

	for (size_t i = 0; i < 100; i++)
	{
		for (size_t j = 0; j < 100; j++)
			sum += arr[i][j];
	}
	cout << sum;
	return 0;
}