#include "fish.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
// vector <vector <pair <int, ll>>> fish;
// vector <vector <ll>> pfx;
// int n, m;
// ll get_sum(int l, int r, int col) {
// int it = upper_bound(fish[col].begin(), fish[col].end(), l) - fish[col].begin();
// it--;
// int it2 = upper_bound(fish[col].begin(), fish[col].end(), r) - fish[col].begin();
// it2--;
// return pfx[col][it2] - pfx[col][it];
// }
vector <vector <ll>> dp;
ll max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) {
// n = N;
// m = M;
// fish.resize(N+1);
// pfx.resize(N+1);
// dp = vector <vector <ll>> (N+1, vector <ll> (N+1, -1));
ll ans = 0;
for (int i = 0; i < N; i++) {
// fish[X[i]+1].push_back({Y[i]+1, W[i]});
ans += W[i];
}
return ans;
// for (int i = 1; i <= N; i++) {
// fish[i].push_back(0);
// sort(fish[i].begin(), fish[i].end());
// for (int j = 1; j < fish[i].size(); j++)
// pfx[i][j] = pfx[i][j-1] + fish[i][j].second;
// }
}
