#include <bits/stdc++.h>
#define pb push_back
#define int int64_t
using namespace std;
constexpr static int SIZE = 301;
int dp[SIZE][SIZE][2];
int max_weights(int32_t n, int32_t m, vector<int32_t> x, vector<int32_t> y, vector<int32_t> w)
{
vector<vector<int>> grid(m, vector<int>(m));
for (int i = 0; i <= n; i++)
for (int j = 0; j <= n; j++)
for (int k = 0; k < 2)
dp[i][j][k] = 0;
for (int i = 0; i < m; i++)
grid[x[i]][y[i]] = w[i];
for (int i = 1; i <= n; i++)
{
dp[0][i][0] = dp[0][i-1][0] + grid[0][i-1];
dp[0][i][1] = dp[0][i][0];
}
for (int i = 2; i < n; i++)
{
vector<int> b_l(n+1), b_h(n+1);
vector<int> prefix(n+1);
for (int j = 1; j <= n; j++)
prefix[j] = prefix[j-1] + grid[i-1][j-1];
for (int j = 1; j <= n; j++)
b_l[j] = max({b_l[j-1], dp[i-2][j-1][0], dp[i-2][j-1][1]});
b_h[n] = max(dp[i-2][n][0], dp[i-2][n][1]) + prefix[n];
for (int j = n-1; j >= 0; j--)
b_h[j] = max(b_h[j+1], max(dp[i-2][j][0], dp[i-2][j][1]) + prefix[j]);
for (int j = 1; j < n; j++)
dp[i][j][0] = grid[i-1][j-1] + max({dp[i][j-1][0], dp[i-1][j-1][0]});
for (int j = n-1; j >= 0; j--)
dp[i][j][1] = max(dp[i][j+1][1], dp[i-1][j+1][1]) + grid[i][j];
for (int j = 0; j < n; j++)
{
dp[i][j][0] = max({dp[i][j][0], b_l[j] + prefix[j], b_h[j]});
dp[i][j][1] = max({dp[i][j][1], b_l[j] + prefix[j], b_h[j]});
}
}
vector<int> prefix(n+1);
for (int i = 1; i <= n; i++)
prefix[i] = prefix[i-1] + grid[n-1][i-1];
int best = 0;
for (int i = 0; i <= n; i++)
best = max(best, dp[n-1][i][0]);
for (int i = 0; i <= n; i++)
best = max(best, max(dp[n-2][i][1], dp[n-2][i][0]) + prefix[i]);
return best;
}
Compilation message
fish.cpp: In function 'int64_t max_weights(int32_t, int32_t, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:14:46: error: expected ';' before ')' token
14 | for (int k = 0; k < 2)
| ^
| ;
