懒汉单例的两种写法 - Problem Statistics - CodeFun2000

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	luti	150ms	15.5 MiB	C++14(O2)	979 Bytes	2026-10-16 20:11:03

ID: 5478
Time: 1000ms
Memory: 256MiB
Difficulty: 5
Tags: (None)
# Submissions: 6
Accepted: 1
Uploaded By: luti