제출 #1199984

#제출 시각아이디문제언어결과실행 시간메모리
1199984fadyscube메기 농장 (IOI22_fish)C++17
0 / 100
17 ms8768 KiB
#include "fish.h"

#include <vector>
#include <algorithm>

using namespace std;

#define ll long long

long long max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) {
    vector<vector<ll>> dp(N, vector<ll>(4, 0));
    vector<int> v(N, 0);
    for (int i = 0; i < M; i++)
        v[X[i]] = W[i];

    dp[0][0] = 0;
    dp[0][1] = 0;
    dp[0][2] = 0;
    dp[0][3] = 0;
    for (int i = 1; i < N; i++) {
        dp[i][0] = max(dp[i-1][0], dp[i-1][2]);
        dp[i][1] = max(dp[i-1][0] + v[i], dp[i-1][2]);
        dp[i][2] = max(dp[i-1][1] + v[i], dp[i-1][3] + v[i]);
        dp[i][3] = max(dp[i-1][1], dp[i-1][3]);
    }

    return max({dp[N-1][0], dp[N-1][1], dp[N-1][2], dp[N-1][3]});
}
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