shixinyi:
博客地址：https://www.cnblogs.com/Serene-shixinyi/
shixinyi:
博客地址：https://www.cnblogs.com/Serene-shixinyi/
cf round 480E The Number Games
cf round 482E Kuro and Topological Parity
cf round 482D Kuro and GCD and XOR and SUM
loj2322 「清华集训 2017」Hello world!