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Submission #779544

# Submission time Handle Problem Language Result Execution time Memory
779544 2023-07-11T14:11:54 Z myde Knapsack (NOI18_knapsack) C++17
100 / 100
 60 ms 5068 KB 
#include <bits/stdc++.h>
using namespace std;

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

  long long s, n;
  cin >> s >> n;
  vector<vector<pair<long long, long long>>> v(s + 1);
  vector<pair<long long, long long>> items;

  long long nilai, berat, banyak;
  for (int i = 0; i < n; i++)
  {
    cin >> nilai >> berat >> banyak;
    v[berat].push_back({nilai, banyak});
  }

  for (int i = 1; i <= s; i++)
  {
    sort(v[i].begin(), v[i].end(), [](pair<long long, long long>& a, pair<long long, long long>& b)
    {
      return (a.first == b.first ? (a.second > b.second) : a.first > b.first);
    });
    int ambil = 0, pos = 0;
    while (pos < v[i].size() and ambil < s / i)
    {
      for (int j = 0; j < min(v[i][pos].second, (s / i - ambil)); j++)
        items.push_back({v[i][pos].first, i});
      ambil += min(v[i][pos++].second, (s / i - ambil));
    }
  }

  vector<long long> dp(s + 1, 0);

  for (auto i : items)
  {
    vector<long long> temp = dp;
    for (int j = i.second; j <= s; j++)
      temp[j] = max(temp[j], dp[j - i.second] + i.first);
    dp = temp;
  }

  cout << dp[s] << '\n';
}

Compilation message

knapsack.cpp: In function 'int main()':
knapsack.cpp:29:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |     while (pos < v[i].size() and ambil < s / i)
      |            ~~~~^~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 380 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 380 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 5 ms 520 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 320 KB Output is correct
6 Correct 1 ms 320 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 320 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 380 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 5 ms 520 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 4 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 316 KB Output is correct
30 Correct 2 ms 340 KB Output is correct
31 Correct 1 ms 324 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 320 KB Output is correct
6 Correct 1 ms 320 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 320 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 380 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 5 ms 520 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 4 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 316 KB Output is correct
30 Correct 2 ms 340 KB Output is correct
31 Correct 1 ms 324 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 23 ms 3400 KB Output is correct
36 Correct 33 ms 3668 KB Output is correct
37 Correct 26 ms 3400 KB Output is correct
38 Correct 23 ms 3772 KB Output is correct
39 Correct 27 ms 4244 KB Output is correct
40 Correct 53 ms 5068 KB Output is correct
41 Correct 35 ms 4328 KB Output is correct
42 Correct 37 ms 4372 KB Output is correct
43 Correct 47 ms 4304 KB Output is correct
44 Correct 60 ms 4368 KB Output is correct
45 Correct 27 ms 4740 KB Output is correct
46 Correct 29 ms 4040 KB Output is correct
47 Correct 31 ms 4932 KB Output is correct
48 Correct 37 ms 4812 KB Output is correct
49 Correct 24 ms 4408 KB Output is correct
50 Correct 42 ms 4472 KB Output is correct