Submission #1308257

#	Time	Username	Problem	Language	Result	Execution time	Memory
1308257		tolga	Knapsack (NOI18_knapsack)	C++20	17 / 100	1095 ms	580 KiB

knapsack

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define endl '\n'

int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr), cout.tie(nullptr);

  int s, n;
  cin >> s >> n;
  vector<ll> p(n), w(n), cnt(n);
  int prev = 1;
  for (ll i = 0; i < n; i++) {
    int x;
    cin >> p[i] >> w[i] >> x;
    cnt[i] = x - prev + 1;
    prev = x;
  }

  const ll INF = 1e9;
  vector<ll> dp(s + 1);
  ll ans = 0;
  for (int i = 0; i < n; i++)
    for (int j = 0; j < cnt[i]; j++)
      for (int weight = s; weight >= w[i]; weight--) {
        if (dp[weight] < dp[weight - w[i]] + p[i]) {
          dp[weight] = dp[weight - w[i]] + p[i];
          ans = max(ans, dp[weight]);
        }
      }

  cout << ans << endl;
}

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