Submission #1258829

#	Time	Username	Problem	Language	Result	Execution time	Memory
1258829		Seyyed_Mojtaba_Mortazavi	JOIRIS (JOI16_joiris)	C++20	0 / 100	715 ms	327680 KiB

joiris

#include <bits/stdc++.h>

using namespace std;

#define int short int
typedef pair <int, int> pii;

const int MAXN = 5e1 + 10;

int a[MAXN];
int s[MAXN];
vector <pii> ans;

signed main()
{
	int n, k;
	cin >> n >> k;
	for (int i = 0; i < n; i++)
	{
		cin >> a[i];
		s[i % k] = (s[i % k] + a[i]) % k;
	}
	for (int i = 0; i < n % k; i++)
	{
		if (s[i] != s[0])
		{
			cout << -1 << endl;
			return 0;
		}
	}
	for (int i = n % k; i < k; i++)
	{
		if (s[i] != s[n % k])
		{
			cout << -1 << endl;
			return 0;
		}
	}
	for (int i = 1; i < n; i++)
	{
		while (a[i] < a[i - 1])
		{
			ans.push_back({1, i});
			a[i] += k;
		}
	}
	for (int i = k; i < n; i++)
	{
		while (a[i - 1] != a[i])
		{
			for (int j = i; j >= k - 1; j -= k)
			{
				ans.push_back({2, j - k + 1});
				for (int x = j - k + 1; x <= j; x++)
					a[x]++;
			}
		}
	}
	for (int i = 0; i < k - 1; i++)
	{
		while (a[i] < a[n - 1])
		{
			ans.push_back({1, i});
			a[i] += k;
		}
	}
	int mx = 0;
	for (int i = n % k; i < k - 1; i++)
		mx = max(mx, a[i]);
	for (int i = 0; i < n; i++)
	{
		while (a[i] < mx)
		{
			ans.push_back({1, i});
			a[i] += k;
		}
	}
	mx = 0;
	for (int i = 0; i < n % k; i++)
		mx = max(mx, a[i]);
	for (int i = 0; i < n % k; i++)
	{
		while (a[i] < mx)
		{
			ans.push_back({1, i});
			a[i] += k;
		}
	}
	for (int i = n % k; i < n; i += k)
	{
		while (a[i] < mx)
		{
			ans.push_back({2, i});
			for (int j = i; j < i + k; j++)
				a[j]++;
		}
	}
	cout << ans.size() << '\n';
	for (auto [x, y] : ans)
		cout << x << " " << y + 1 << '\n';
	return 0;
}

• Subtask 1: 0 / 15
• Subtask 2: 0 / 15
• Subtask 3: 0 / 15
• Subtask 4: 0 / 55