Fading Coder

One Final Commit for the Last Sprint

Topological Sorting for Lanqiao Cup

1. Topological Sorting Definition: Let $G = (V, E)$ be a directed graph with $n$ vertices. A vertex sequence from $V$ is called a topological sequence if and only if: for any path from vertex $u$ to $v$, $u$ appears before $v$ in the sequence. Basic Idea: Select a vertex with no predecessors (in-deg...

Graph Coloring Count and Minimal Exam Hall Problems Using DFS for Competitive Programming Contests

Graph Coloring Count Problem Problem Statement Given an undirected graph, color each vertex such that no two adjacent vertices share the same color. Calculate the total number of valid coloring schemes using a specified number of colors. Input Format First line: Two positive integers n and m (0 <...