neighbors
(Others/neighbors.hpp)

• View this file on GitHub
• Last update: 2026-11-04 14:46:41+09:00
• Include: #include "Others/neighbors.hpp"

概要

以下を圧縮してまとめたものである。

• グリッドの上下左右 4 近傍 (最初の 4 要素)
• グリッドの周囲 8 近傍 (全要素)
• ハニカムの 6 近傍 (最初の 6 要素)

Required by

• template.hpp

Verified with

• tests/yukicoder_705_general_li_chao_tree.test.cpp

Code

#pragma once
#include <bits/stdc++.h>
using namespace std;

// neighbors
const vector<int> DX = {1, 0, -1, 0, 1, -1, 1, -1};
const vector<int> DY = {0, 1, 0, -1, 1, -1, -1, 1};

#line 2 "Others/neighbors.hpp"
#include <bits/stdc++.h>
using namespace std;

// neighbors
const vector<int> DX = {1, 0, -1, 0, 1, -1, 1, -1};
const vector<int> DY = {0, 1, 0, -1, 1, -1, -1, 1};

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