Euler's Formula

Introduction Example 1 Example 2 Problems

Introduction

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Example 1

Status		Source	Problem Name	Difficulty	Tags
		APIO	2017 - Land of the Rainbow Gold	Very Hard	Show Tags 2DRQ, Euler's Formula, Persistent Segtree

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Example 2

Status		Source	Problem Name	Difficulty	Tags
		Platinum	Valleys	Very Hard

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int N, h[750][750];
ll ans;
vector<pair<int, pi>> v;

int hsh(int a, int b) { return N * a + b; }

const int xd[4] = {1, 0, -1, 0}, yd[4] = {0, 1, 0, -1};

template <int SZ> struct DSU {
	int par[SZ], sz[SZ], measure[SZ];

Problems

Source	Problem Name	Difficulty	Tags
Silver	Build Gates	Normal	Show Tags Euler's Formula, Flood Fill
Kattis	Island Archipelago	Very Hard	Show Tags DSU, Euler's Formula
CF	Kevin & Grid	Very Hard	Show Tags Euler's Formula, FFT
CF	Rectangles & Connected Regions	Very Hard	Show Tags Euler's Formula
Platinum	Paint by Letters	Very Hard	Show Tags Euler's Formula

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Table of Contents

Table of Contents

Introduction

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Example 1

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Example 2

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Problems

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