Submission #641654

#	Time	Username	Problem	Language	Result	Execution time	Memory
641654		Vanilla	Catfish Farm (IOI22_fish)	C++17	9 / 100	34 ms	6240 KiB

fish

#include "fish.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long int64;
const int maxn = 1e5 + 2;
int64 dp [maxn][2];
int64 p [maxn];

int64 max_weights(int n, int m, vector<int> x, vector<int> y,
                      vector<int> w) {
  for (int i = 0; i < m; i++) {
    p[x[i] + 1] = w[i];
  }
  dp[1][0] = 0;
  dp[1][1] = p[2];
  dp[2][0] = p[2];
  dp[2][1] = p[1] + p[3];
  for (int i = 3; i <= n; i++){
    dp[i][0] = max(dp[i-1][1], dp[i-1][0]);
    dp[i][1] = max({dp[i-2][0] + p[i-1] + p[i+1], dp[i-2][1] + p[i + 1], dp[i-1][1] - p[i] + p[i+1]});
  }
  return max(dp[n][0], dp[n][1]);
}

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