Fighting_sh

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个人日常训练计划

Rotating Scoreboard（半平面交模板题）

Codeforces Round #500 (Div. 2) [based on EJOI]

换个角度思考

GCD（欧拉函数）

Codeforces Round #503 (by SIS, Div. 2)

zyb的面试

Codeforces Round #516 (Div. 2, by Moscow Team Olympiad)

Sigma Function (平方数与平方数*2的约数和是奇数)

Leading and Trailing （数论）

Codeforces Round #450 (Div. 2)

Codeforces Beta Round #75 (Div. 2 Only)

Nim

Codeforces Beta Round #73 (Div. 2 Only)