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Submission #715222

# Submission time Handle Problem Language Result Execution time Memory
715222 2023-03-26T08:36:01 Z cfjason Knapsack (NOI18_knapsack) C++17
100 / 100
 111 ms 4864 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int main(int argc, char *argv[]) {
  ll s, n;
  cin >> s >> n;
  vector<ll> dp(s + 1);
  vector<vector<array<ll, 2>>> itemsByWeight(s + 1);
  for (int i = 0; i < n; i++) {
    ll v, w, k;
    cin >> v >> w >> k;
    itemsByWeight[w].push_back({v, k});
  }
  for (int i = 0; i <= s; i++) {
    sort(itemsByWeight[i].rbegin(), itemsByWeight[i].rend());
  }
  for (int i = 0; i < itemsByWeight.size(); i++) {
    for (int j = s; j >= 0; j--) {
      int cpIndex = j;
      int earnings = 0;
      for (int k = 0; k < itemsByWeight[i].size(); k++) {
        for (int d = 0; d < itemsByWeight[i][k][1]; d++) {
          if (cpIndex - i < 0)
            break;
          cpIndex -= i;
          earnings += itemsByWeight[i][k][0];
          dp[j] = max(dp[j], dp[cpIndex] + earnings);
        }
        if (cpIndex - i < 0)
          break;
      }
    }
  }
  cout << dp[s] << endl;
  return 0;
}

Compilation message

knapsack.cpp: In function 'int main(int, char**)':
knapsack.cpp:17:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<std::array<long long int, 2> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |   for (int i = 0; i < itemsByWeight.size(); i++) {
      |                   ~~^~~~~~~~~~~~~~~~~~~~~~
knapsack.cpp:21:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::array<long long int, 2> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |       for (int k = 0; k < itemsByWeight[i].size(); k++) {
      |                       ~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

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

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 4 ms 340 KB Output is correct
3 Correct 5 ms 340 KB Output is correct
4 Correct 5 ms 296 KB Output is correct
5 Correct 3 ms 340 KB Output is correct
6 Correct 7 ms 340 KB Output is correct
7 Correct 5 ms 340 KB Output is correct
8 Correct 4 ms 340 KB Output is correct
9 Correct 4 ms 300 KB Output is correct
10 Correct 4 ms 368 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 4 ms 340 KB Output is correct
3 Correct 5 ms 340 KB Output is correct
4 Correct 5 ms 296 KB Output is correct
5 Correct 3 ms 340 KB Output is correct
6 Correct 7 ms 340 KB Output is correct
7 Correct 5 ms 340 KB Output is correct
8 Correct 4 ms 340 KB Output is correct
9 Correct 4 ms 300 KB Output is correct
10 Correct 4 ms 368 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 6 ms 340 KB Output is correct
13 Correct 8 ms 340 KB Output is correct
14 Correct 4 ms 300 KB Output is correct
15 Correct 4 ms 340 KB Output is correct
16 Correct 6 ms 300 KB Output is correct
17 Correct 4 ms 300 KB Output is correct
18 Correct 4 ms 340 KB Output is correct
19 Correct 4 ms 340 KB Output is correct
20 Correct 4 ms 340 KB Output is correct

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 340 KB Output is correct
2 Correct 2 ms 340 KB Output is correct
3 Correct 2 ms 340 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 4 ms 340 KB Output is correct
7 Correct 5 ms 340 KB Output is correct
8 Correct 5 ms 296 KB Output is correct
9 Correct 3 ms 340 KB Output is correct
10 Correct 7 ms 340 KB Output is correct
11 Correct 5 ms 340 KB Output is correct
12 Correct 4 ms 340 KB Output is correct
13 Correct 4 ms 300 KB Output is correct
14 Correct 4 ms 368 KB Output is correct
15 Correct 1 ms 300 KB Output is correct
16 Correct 6 ms 340 KB Output is correct
17 Correct 8 ms 340 KB Output is correct
18 Correct 4 ms 300 KB Output is correct
19 Correct 4 ms 340 KB Output is correct
20 Correct 6 ms 300 KB Output is correct
21 Correct 4 ms 300 KB Output is correct
22 Correct 4 ms 340 KB Output is correct
23 Correct 4 ms 340 KB Output is correct
24 Correct 4 ms 340 KB Output is correct
25 Correct 1 ms 296 KB Output is correct
26 Correct 6 ms 304 KB Output is correct
27 Correct 4 ms 340 KB Output is correct
28 Correct 4 ms 340 KB Output is correct
29 Correct 4 ms 340 KB Output is correct
30 Correct 4 ms 340 KB Output is correct
31 Correct 8 ms 364 KB Output is correct
32 Correct 6 ms 340 KB Output is correct
33 Correct 5 ms 340 KB Output is correct
34 Correct 5 ms 360 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 340 KB Output is correct
2 Correct 2 ms 340 KB Output is correct
3 Correct 2 ms 340 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 4 ms 340 KB Output is correct
7 Correct 5 ms 340 KB Output is correct
8 Correct 5 ms 296 KB Output is correct
9 Correct 3 ms 340 KB Output is correct
10 Correct 7 ms 340 KB Output is correct
11 Correct 5 ms 340 KB Output is correct
12 Correct 4 ms 340 KB Output is correct
13 Correct 4 ms 300 KB Output is correct
14 Correct 4 ms 368 KB Output is correct
15 Correct 1 ms 300 KB Output is correct
16 Correct 6 ms 340 KB Output is correct
17 Correct 8 ms 340 KB Output is correct
18 Correct 4 ms 300 KB Output is correct
19 Correct 4 ms 340 KB Output is correct
20 Correct 6 ms 300 KB Output is correct
21 Correct 4 ms 300 KB Output is correct
22 Correct 4 ms 340 KB Output is correct
23 Correct 4 ms 340 KB Output is correct
24 Correct 4 ms 340 KB Output is correct
25 Correct 1 ms 296 KB Output is correct
26 Correct 6 ms 304 KB Output is correct
27 Correct 4 ms 340 KB Output is correct
28 Correct 4 ms 340 KB Output is correct
29 Correct 4 ms 340 KB Output is correct
30 Correct 4 ms 340 KB Output is correct
31 Correct 8 ms 364 KB Output is correct
32 Correct 6 ms 340 KB Output is correct
33 Correct 5 ms 340 KB Output is correct
34 Correct 5 ms 360 KB Output is correct
35 Correct 70 ms 3236 KB Output is correct
36 Correct 84 ms 3428 KB Output is correct
37 Correct 81 ms 3348 KB Output is correct
38 Correct 81 ms 3616 KB Output is correct
39 Correct 107 ms 4312 KB Output is correct
40 Correct 110 ms 4740 KB Output is correct
41 Correct 103 ms 3972 KB Output is correct
42 Correct 94 ms 3960 KB Output is correct
43 Correct 106 ms 3988 KB Output is correct
44 Correct 93 ms 3908 KB Output is correct
45 Correct 98 ms 4756 KB Output is correct
46 Correct 95 ms 4028 KB Output is correct
47 Correct 101 ms 4864 KB Output is correct
48 Correct 111 ms 4556 KB Output is correct
49 Correct 88 ms 4452 KB Output is correct
50 Correct 100 ms 4172 KB Output is correct