山河令[区间DP]

     分析 (https://blog.csdn.net/dreaming__ldx/article/details/83447762) #include<bits/stdc++.h> #define N 55 #define inf 0x3fffffff using namespace std; int x[N],w[N]; int n,a,b; int g[N][N][N][N],f[N]

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