[실3] 21921 - 블로그

#include <iostream>

#define FAST_IO() \
{\
	ios::sync_with_stdio(false);\
	cin.tie(NULL); \
	cout.tie(NULL); \
}\

using namespace std;

int main()
{
	FAST_IO();
	int arr[250000]{0};
	int n, x; 
	cin >> n >> x;

	for (int i = 1; i <= n; i++)
	{
		int num;
		cin >> num;
		arr[i] = arr[i - 1] + num;
	}

	int ans = 0, cnt = 0;

	for (int i = x; i <= n; i++)
	{
		int tmp = arr[i] - arr[i - x];

		if (ans < tmp)
		{
			ans = tmp;
			cnt = 1;
		}
		else if (ans == tmp)
			cnt++;
	}
	if (ans > 0)
		cout << ans << "\n" << cnt;

	else
		cout << "SAD";

	return 0;
}