Submission #844775

#	Time	Username	Problem	Language	Result	Execution time	Memory
844775		qrno	Knapsack (NOI18_knapsack)	C++14	73 / 100	1086 ms	18892 KiB

knapsack

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

#define int long long

signed main() {
  ios::sync_with_stdio(false); cin.tie(nullptr);

  int S, N;
  cin >> S >> N;

  vector<pair<int, int>> A;
  for (int i = 0; i < N; i++) {
    int v, w, k;
    cin >> v >> w >> k;

    for (int cnt = 1; cnt <= k; cnt *= 2) {
      A.push_back({v*cnt, w*cnt});
      k -= cnt;
    }
    A.push_back({v*k, w*k});
  }

  vector<int> most(S+1);
  for (auto [v, w] : A) {
    for (int s = S; s-w >= 0; s--) {
      most[s] = max(most[s], most[s-w] + v);
    }
  }

  cout << *max_element(begin(most), end(most)) << '\n';
}

Compilation message (stderr)

knapsack.cpp: In function 'int main()':
knapsack.cpp:25:13: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   25 |   for (auto [v, w] : A) {
      |             ^

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