Submission #922621

#	Time	Username	Problem	Language	Result	Execution time	Memory
922621		LucaLucaM	Catfish Farm (IOI22_fish)	C++17	Compilation error	0 ms	0 KiB

fish

#ifndef FISH_CPP_INCLUDED
#define FISH_CPP_INCLUDED

#include "fish.h"

#include <vector>
#include <cstring>
#include <cassert>
#include <iostream>

typedef long long ll;

bool sub1(std::vector<int> v) {
  for (const auto &x : v) {
    if (x & 1) {
      return false;
    }
  }
  return true;
}

long long max_weights(int n, int m, std::vector<int> x, std::vector<int> y,
                      std::vector<int> w) {
  if (sub1(x)) {
    return std::accumulate(w.begin(), w.end(), 0);
  }
  n++;
  ll cnt[n + 1][n + 1];
  memset(cnt, 0, sizeof(cnt));
  for (int i = 0; i < m; i++) {
    x[i]++, y[i]++;
    x[i] = n - 1 - x[i] + 1;
    cnt[x[i]][y[i]] += w[i];
  }
  for (int i = 1; i <= n; i++) {
    for (int j = 1; j <= n; j++) {
      cnt[i][j] += cnt[i - 1][j];
    }
  }
  ll dp[n + 1][n + 1];
  memset(dp, 0, sizeof(dp));
  for (int i = 2; i <= n; i++) {
    for (int j = 0; j <= (i == n? 0 : n); j++) {
      for (int k = 0; k <= (i == 2? 0 : n); k++) {
        dp[i][j] = std::max(dp[i][j], dp[i - 2][k] + cnt[i - 1][std::max(j, k)]);
      }
    }
  }
  return dp[n][0];
  return 0;
}


#endif // FISH_CPP_INCLUDED

Compilation message (stderr)

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:25:17: error: 'accumulate' is not a member of 'std'
   25 |     return std::accumulate(w.begin(), w.end(), 0);
      |                 ^~~~~~~~~~