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Euler's Formula

Author: Benjamin Qi

A formula for finding the number of faces in a planar graph.

Introduction

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Example 1

StatusSourceProblem NameDifficultyTags
APIOVery Hard
Show Tags2DRQ, Euler's Formula, Persistent Segtree

This section is not complete.

Any help would be appreciated! Just submit a Pull Request on GitHub.

Example 2

StatusSourceProblem NameDifficultyTags
PlatinumVery Hard

This section is not complete.

Any help would be appreciated! Just submit a Pull Request on GitHub.
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

StatusSourceProblem NameDifficultyTags
KattisVery Hard
Show TagsDSU, Euler's Formula
CFVery Hard
Show TagsEuler's Formula, FFT
CFVery Hard
Show TagsEuler's Formula
PlatinumVery Hard
Show TagsEuler's Formula

Module Progress:

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