Submission #1313063

#	Time	Username	Problem	Language	Result	Execution time	Memory
1313063		kawhiet	Catfish Farm (IOI22_fish)	C++20	0 / 100	22 ms	12352 KiB

fish

#include <bits/stdc++.h>
#include "fish.h"
using namespace std;

long long max_weights(int n, int m, vector<int> x, vector<int> y, vector<int> w) {
  vector<int> a(n);
  for (int i = 0; i < m; i++) {
    a[x[i]] = w[i];
  }
  vector<vector<long long>> p(n + 1, vector<long long>(2)), s(n + 2, vector<long long>(2));
  for (int i = 0; i < n; i++) {
    int j = i % 2;
    p[i + 1][j] = p[i][j] + a[i];
    p[i + 1][1 - j] = p[i][1 - j];
  }
  for (int i = n - 1; i >= 0; i--) {
    int j = i % 2;
    s[i][j] = s[i + 1][j] + a[i];
    s[i][1 - j] = s[i + 1][1 - j];
  }
  long long ans = max(p[n][1], p[n][0]);
  for (int i = 0; i <= n; i++) {
    for (int s1 = 0; s1 < 2; s1++) {
      for (int s2 = 0; s2 < 2; s2++) {
        ans = max(ans, p[i][s1] + s[i + 1][s2]);
      }
    }
  }
  return ans;
}

• Subtask 1: 0 / 3
• Subtask 2: 0 / 6
• Subtask 3: 0 / 9
• Subtask 4: 0 / 14
• Subtask 5: 0 / 21
• Subtask 6: 0 / 17
• Subtask 7: 0 / 14
• Subtask 8: 0 / 16