This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "fish.h"
#include "bits/stdc++.h"
using namespace std;
typedef long long ll;
ll max_weights(int n, int m, vector<int> x, vector<int> y, vector<int> w){
int h=0;
for(int i=0;i<m;i++) h=max(h,y[i]);
h+=2;
ll fish[n][h]={};
for(int i=0;i<m;i++) fish[x[i]][y[i]+1]=w[i];
for(int i=0;i<n;i++)
for(int j=1;j<h;j++)
fish[i][j]+=fish[i][j-1];
ll dp[n][h][h][h]={};
for(int i=1;i<n;i++){
for(int j=0;j<h;j++){
for(int k=0;k<h;k++){
ll prev=0;
for(int l=0;l<h;l++)
prev=max(prev,dp[i-1][l][j][k]);
for(int l=0;l<h;l++){
dp[i][j][k][l]+=prev;
if(k>=l) dp[i][j][k][l]+=fish[i][k]-fish[i][l];
else dp[i][j][k][l]+=fish[i-1][max(j,l)]-fish[i-1][max(j,k)];
}
}
}
}
ll res=0;
for(int i=0;i<h;i++)
for(int j=0;j<h;j++)
for(int k=0;k<h;k++)
res=max(res,dp[n-1][i][j][k]);
return res;
}
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