Submission #1223532

#	Time	Username	Problem	Language	Result	Execution time	Memory
1223532		trimkus	Catfish Farm (IOI22_fish)	C++20	12 / 100	58 ms	9796 KiB

fish

#include "fish.h"

#include <bits/stdc++.h>
using namespace std;
using ll = long long;

void chmax(ll& x, ll y) {
  x = max(x, y);
}

long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y,
                      std::vector<int> W) {
    vector<ll> a(N + 3);
    for (int i = 0; i < M; ++i) {
        a[X[i] + 1] += W[i];
    }
    vector<ll> dp1(N + 2), dp2(N + 2);
    const ll INF = 1e18;
    dp2[0] = dp2[1] = -INF;
    for (int i = 0; i < N; ++i) {
      dp1[i + 2] = max(dp1[i + 1], dp2[i + 1] + a[i + 1]);
      dp2[i + 2] = max(dp2[i + 1], max(dp1[i], dp2[i]) + a[i]);
    }
    ll res = max(dp1[N + 1], dp2[N + 1]);

    return res;
}

• Subtask 1: 3 / 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