Smart pointer is a practice of RAII (Resource Acquisition is Initialization), we use a smart pointer to manage memory allocated on the heap. (here the “resource” is the allocated heap memory)

This is a note on setting up wordpress on my arch.

my openssl cheatsheet.

HMAC-based KDF(key derivation function)

How to generate a random sequence (permutation) of a finite sequence.

How to select k out of N objects.

max_heap: A[0] is the maximum value
min_heap: A[0] is the minimum value
source code: AC/Algorithms/Heap

I used to think deploying my blog with github actions is unnecessary, but now… (真香)
Deploying with github actions is so much faster.