F - Yura and Developers 第一次知道单调栈搞出来的区间也能启发式合并... 你把它想想成一个树的形式, 可以发现确实可以启发式合并. #include<bits/stdc++.h> #define LL long long #define fi first #define se second #define mk make_pair #define PII pair<int, int> #define PLI pair<LL, int> #defi…
对话框即Dialog .google的官方解释:A dialog is usually a small window that appears in front of the current Activity. The underlying Activity loses focus and the dialog accepts all user interaction. 翻译过来就是:对话框是当前Activity之上的小窗口,此时对话框接受用户的操作而Activity得不到用户的反馈. 一般而言…
Atoms: There and Back Again Time limit 2 seconds Memory limit 256Mb Input stdin Output stdout Legend Yura and Roman got bored with the original “Atoms” board game and came up with a better game that uses the same playing set. The game starts with one…