#include "fish.h"
#include <bits/stdc++.h>
using namespace std;
long long max_weights(int n,int m,vector<int>x,vector<int>y,vector<int>w){
int mx = *max_element(y.begin(),y.end());
if(mx <= 8){
long long dp[n+1][mx+2][mx+2]{};
int sum[n+1][mx+2]{};
for(int i = 0; i < m; i++) x[i] += 1;
for(int i = 0; i < m; i++) y[i] += 1;
for(int i = 0; i < m; i++) sum[x[i]][y[i]] += w[i];
long long ans = 0;
for(int i = 0; i < 1; i++){
for(int j = 0; j < mx+2; j++){
for(int k = 0; k < mx+2; k++){
dp[i][j][k] = -1e18;
}
}
}
dp[0][0][0] = 0;
for(int i = 1; i <= n; i++){
for(int j = 0; j < mx+2; j++){
for(int k = 0; k < mx+2; k++){
for(int v = 0; v < mx+2; v++){
long long now = dp[i-1][k][j];
int cur = v;
while(cur > max(j,k)) now += sum[i-1][cur--];
cur = k;
while(cur > v) now += sum[i][cur--];
dp[i][v][k] = max(dp[i][v][k],now);
ans = max(ans,now);
}
}
}
}
}
return ans;
}
// int main(){
// cout << max_weights(5, 4, {0, 1, 4, 3}, {2, 1, 4, 3}, {5, 2, 1, 3}) << '\n';
// }
Compilation message
fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:42:12: error: 'ans' was not declared in this scope; did you mean 'abs'?
42 | return ans;
| ^~~
| abs
