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Submission #491185

# Submission time Handle Problem Language Result Execution time Memory
491185 2021-11-30T17:11:52 Z tarche Knapsack (NOI18_knapsack) C++17
0 / 100
 1 ms 972 KB 
#include <bits/stdc++.h>

using namespace std;

const int INF = 1e9;

struct Item {
    int value, weight, amount;
};

int solve(const vector<Item>& items, vector<vector<int>>& dp, int i, int j, int k) {
    if (i < 0 || j < 0 || k < 0)
        return -INF;
    if (dp[i][j] != -1)
        return dp[i][j];
    int lhs = solve(items, dp, i, j - items[i].weight, k - 1) + items[i].value;
    int rhs = solve(items, dp, i - 1, j, items[i - 1].amount);
    dp[i][j] = max(lhs, rhs);

    return dp[i][j];
}

int main() {
    int S, N;
    cin >> S >> N;

    vector<Item> items(N);
    for (int i = 0; i < N; i++)
        cin >> items[i].value >> items[i].weight >> items[i].amount;

    sort(items.begin(), items.end(), [&](const Item& lhs, const Item& rhs) {
        return lhs.value < rhs.value;
    });

    vector<vector<int>> dp(N, vector<int>(S + 1, -1));
    dp[0][0] = 0;

    int ans = solve(items, dp, N - 1, S, items[N - 1].amount);

    cout << ans << '\n';
}

Subtask #1
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Incorrect 1 ms 972 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Incorrect 1 ms 972 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 24.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -