wangzhelin:
博客地址:https://www.cnblogs.com/wangzhelin/
wangzhelin:
博客地址:https://www.cnblogs.com/wangzhelin/
利用MAP存数据,防止超时,一开始用了两个for 循环CodeForces - 702B
https://www.bilibili.com/video/BV1LY411H7Gg/?spm_id_from=333.788&vd_source=37d19140dbf0320f20b6a