Submission #719309

#	Time	Username	Problem	Language	Result	Execution time	Memory
719309		JANCARAPAN	Knapsack (NOI18_knapsack)	C++17	12 / 100	1 ms	212 KiB

knapsack

#include <bits/stdc++.h>
using namespace std;
//  #define int long long
#define ll long long 
#define fi first
#define se second
#define pb push_back
#define all(a) (a).begin(), (a).end()
#define sz(a) (long long) a.size()
#define endl '\n'
 
#define dbg(a) cerr << #a << " = " << a << endl;
#define print(a) for (auto x : a) cerr << x << " "; cerr << endl;
 
const long long INF = 1e18, MOD = 1e9 + 7;

void solve(){
  int s, n;
  cin >> s >> n;
  vector<int> v(n), w(n), k(n);
  for (int i = 0; i < n; i++) {
    cin >> v[i] >> w[i] >> k[i];
  }
  vector<int> dp(s + 1);
  for (int i = 0; i < n; i++) {
    vector<int> already(s + 1);
    for (int j = w[i]; j <= s; j++) {
      if (dp[j - w[i]] + v[i] > dp[j] && already[j - w[i]] + 1 <= k[i]) {
        dp[j] = dp[j - w[i]] + v[i];
        already[j] = already[j - w[i]] + 1;
      }
      if (dp[j] < dp[j - 1]) {
        dp[j] = dp[j - 1];
        already[j] = already[j - 1];
      }
    }
  }
  cout << *max_element(all(dp)) << endl;
}
 
signed main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  int tt = 1;
  //cin >> tt;
  while (tt--) {
    solve();
  }
  return 0;
}

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