Xi Ruoyao

PhD Student

School of Space Science and Technology

Laboratory of ICPC

Biography

Xi Ruoyao is just a trivial graduated student of Xidian University.

Interests

Physics
Competitive Programming

Education

BEng in Aerospace Science and Technology, 2017

Recent Publications

Quan Lei, Xie Kai, Xi Ruoyao, Liu Yan (2017). Compressive light beam induced current sensing for fast defect detection in photovoltaic cells. In Solar Energy.

Recent Posts

CSP September 2020

第 20 次 CCF 计算机软件能力认证检测点查询问题重述给定一个点集 $S \subset \mathbb{R}^2$，再给定一个点 $p \in \mathbb{R}^2$，求 $S$ 中到

Xi Ruoyao

Last updated on Oct 5, 2020 5 min read

CCPC 2020 Online

CCPC 2020 Online Graph Theory Class 问题重述一个完全图，点的编号是 $1$ 到 $n$，$u$ 和 $v$ 之间的边权是 $lcm(u, v)$，求其 MST。题解不会啊，这题真的能做吗，为什么过了几百

Xi Ruoyao

Last updated on Sep 24, 2020 3 min read

Different Ways to Initialize an Array, and their Performance

Discuss minor performance issues introduced by array initialization in competitive programming.

Xi Ruoyao

Last updated on Jul 22, 2020 8 min read

A Guide to Undefined Behavior in C and C++

This is a Chinese translation of the original article on John Regehr’s blog.

John Regehr

Last updated on Jan 12, 2020 23 min read

Time complexity problem

Another stupid problem can lead to some thoughts.

Xi Ruoyao

Last updated on Sep 13, 2019 4 min read

Projects

Linux From Scratch book Chinese translation

Linux From Scratch (LFS) is a project that provides you with step by step instructions for building your own custom Linux system, entirely from source code. This is Chinese translation of LFS book.

Xidian University Online Judge Next Generation

This would replace HUSTOJ as the Online Judge of XDU ACM/ICPC.