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暴力50分写法分成放左边,不放,放右边三种状态,暴力枚举#include <bits/stdc++.h> #define ll long long #define ull unsigned long long #define ms(a,b) memset(a,b,sizeof(a)) const int inf=0x3f3f3f3f; const ll INF=0x3f3f3f3...