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数论

趣题: 找出所有符合要求的 n

2 August 2023·1 min

趣题: 证明一个式子不为整数

31 July 2023·1 min

LeetCode-2543 判断一个点是否可以到达

29 January 2023·1 min

LeetCode-1819 序列中不同最大公约数的数目

14 January 2023·1 min

Trailing Zeros

30 December 2022·1 min

CodeForces-735D Taxes

5 August 2022·1 min

CodeForces-1542C Strange Function

5 August 2022·1 min

逆元学习笔记

4 August 2022·1 min

CodeForces-1497C2 k-LCM (hard version)

26 July 2022·2 mins

CodeForces-1349A Orac and LCM

25 July 2022·1 min

CodeForces-1458A Row GCD

20 July 2022·1 min

CodeForces-1342C Yet Another Counting Problem

20 July 2022·2 mins

CodeForces-235A LCM Challenge

30 June 2022·1 min