Submission #914410

#	Time	Username	Problem	Language	Result	Execution time	Memory
914410		Em1L	Knapsack (NOI18_knapsack)	C++14	73 / 100	218 ms	262144 KiB

knapsack

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

using ll = long long;
using pii = pair<int, int>;
using tiii = tuple<int, int, int>;

int main() {
    ios::sync_with_stdio(0); cin.tie(0);

    int n, s; cin >> s >> n;

    vector < pii > val;

    for (int i = 1, v, w, k; i <= n; i++) {
        cin >> v >> w >> k;

        int total = 0;

        for (int i = 1; i <= k && total <= s; i++) {
            val.push_back({ v, w });

            total += w;
        }
    }

    vector < int > dp(s + 1, -1);

    dp[0] = 0;

    for (auto [v, w] : val)
        for (int cur = s; cur >= w; cur--)
            if (dp[cur - w] >= 0)
                dp[cur] = max(dp[cur], dp[cur - w] + v);

    cout << *max_element(dp.begin(), dp.end()) << "\n";
}

Compilation message (stderr)

knapsack.cpp: In function 'int main()':
knapsack.cpp:31:15: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   31 |     for (auto [v, w] : val)
      |               ^

• Subtask 1: 12 / 12
• Subtask 2: 17 / 17
• Subtask 3: 20 / 20
• Subtask 4: 24 / 24
• Subtask 5: 0 / 27