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洛谷2962：dfs折半搜索。。主要得想到用二进制数来代表开关状态，看了题解才想起来（还是菜啊# include <iostream># include <cstdio># include <cstring># include <cmath># include <list># include <map># include <queue># include <algorithm># inc

Acwing3175滑动窗口例题，nlogn# include <iostream># include <cstdio># include <cstring># include <cmath># include <list># include <map># include <queue># include <algorithm># include <set>#define