Submission #632940

#	Time	Username	Problem	Language	Result	Execution time	Memory
632940		stefanlin	Catfish Farm (IOI22_fish)	C++17	0 / 100	21 ms	3676 KiB

fish

#include "fish.h"

#include <vector>
#include <cstdlib>
#include <algorithm>
#include <iostream>
#include <cstring>

bool locatedAt0(std::vector<int> Y) {
    for (auto y : Y) {
        if (y != 0) {
            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 (locatedAt0(Y)) {
        int64_t a[N + 1];
        int64_t dp[N + 1][2];
        memset(a, 0, sizeof a);
        memset(dp, 0, sizeof dp);
        for (int i = 0; i < M; ++i) {
            a[X[i]] = W[i];
        }
        dp[0][0] = 0;
        dp[0][1] = a[1];
        dp[1][0] = a[1];
        dp[1][1] = a[0] + a[2];
        for (int i = 2; i < N; ++i) {
            dp[i][0] = std::max(dp[i - 1][1], dp[i - 1][0]),
            dp[i][1] = std::max(dp[i - 2][0] + a[i - 1] + a[i + 1], dp[i - 2][1] + a[i + 1]);
        }
        return std::max(dp[N - 1][0], dp[N - 1][1]);
    }
    return 0;
}

• 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