Submission #713267

#	Time	Username	Problem	Language	Result	Execution time	Memory
713267		t6twotwo	메기 농장 (IOI22_fish)	C++17	0 / 100	757 ms	2097152 KiB

fish

#include "fish.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
ll max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) {
    vector w(N + 2, vector<ll>(N + 1));
    for (int i = 0; i < M; i++) {
        w[X[i] + 1][Y[i] + 1] = W[i];
    }
    for (int i = 1; i <= N; i++) {
        for (int j = 1; j <= N; j++) {
            w[i][j] += w[i][j - 1];
        }
    }
    vector dp1(N + 1, vector<ll>(N));
    for (int i = 1; i <= N; i++) {
        for (int j = 0; j < N; j++) {
            for (int k = 0; k <= j; k++) {
                dp1[i][j] = max(dp1[i][j], dp1[i - 1][k] + w[i - 1][j + 1] - w[i - 1][k + 1]);
            }
        }
    }
    vector dp2(N + 1, vector<ll>(N));
    for (int i = N - 1; i >= 0; i--) {
        for (int j = 0; j < N; j++) {
            for (int k = 0; k <= j; k++) {
                dp2[i][j] = max(dp2[i][j], dp2[i + 1][k] + w[i + 2][j + 1] - w[i + 2][k + 1]);
            }
        }
    }
    ll ans = 0;
    for (int i = 0; i < N; i++) {
        for (int j = 0; j < N; j++) {
            ans = max(ans, dp1[i + 1][j] + dp2[i][j]);
        }
    }
    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