oj.uz

Submission #659959

# Submission time Handle Problem Language Result Execution time Memory
659959 2022-11-20T04:36:15 Z chanhchuong123 Knapsack (NOI18_knapsack) C++14
100 / 100
 60 ms 3756 KB 
#include <bits/stdc++.h>
using namespace std;
#define task "C"
#define fi first
#define se second
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()

template <typename T1, typename T2> bool mini(T1 &a, T2 b) {
  if (a > b) {a = b; return true;} return false;
}
template <typename T1, typename T2> bool maxi(T1 &a, T2 b) {
  if (a < b) {a = b; return true;} return false;
}

const int N = 2020;
int s, n;
int dp[N];
vector<int> a[N];
vector<pair<int, int>> V[N];

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

  cin >> s >> n;
  for (int i = 1; i <= n; i++) {
    int v, w, k; cin >> v >> w >> k;
    V[w].push_back({v, k});
  }
  for (int i = 1; i <= s; i++) {
    int LIM = s / i; sort(all(V[i]));
    while (V[i].size() && LIM > 0) {
      if (V[i].back().se > 0) {
        a[i].push_back(V[i].back().fi);
        V[i].back().se--; LIM--;
      } else V[i].pop_back();
    }
  }
  for (int i = 1; i <= s; i++) for (int j: a[i]) {
    for (int k = s; k >= i; k--) maxi(dp[k], dp[k - i] + j);
  }
  cout << dp[s];
}

Compilation message

knapsack.cpp:22:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   22 | main() {
      | ^~~~

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 420 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 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 424 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 416 KB Output is correct
6 Correct 1 ms 424 KB Output is correct
7 Correct 1 ms 428 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

Subtask #3
20.0 / 20.0

# 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 424 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 416 KB Output is correct
6 Correct 1 ms 424 KB Output is correct
7 Correct 1 ms 428 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 424 KB Output is correct
12 Correct 2 ms 340 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 416 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 420 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 424 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 416 KB Output is correct
10 Correct 1 ms 424 KB Output is correct
11 Correct 1 ms 428 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 340 KB Output is correct
15 Correct 1 ms 424 KB Output is correct
16 Correct 2 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 416 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 340 KB Output is correct
26 Correct 5 ms 420 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 340 KB Output is correct
30 Correct 2 ms 420 KB Output is correct
31 Correct 1 ms 340 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 420 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 424 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 416 KB Output is correct
10 Correct 1 ms 424 KB Output is correct
11 Correct 1 ms 428 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 340 KB Output is correct
15 Correct 1 ms 424 KB Output is correct
16 Correct 2 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 416 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 340 KB Output is correct
26 Correct 5 ms 420 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 340 KB Output is correct
30 Correct 2 ms 420 KB Output is correct
31 Correct 1 ms 340 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 31 ms 2380 KB Output is correct
36 Correct 33 ms 2636 KB Output is correct
37 Correct 29 ms 2472 KB Output is correct
38 Correct 28 ms 2728 KB Output is correct
39 Correct 34 ms 3428 KB Output is correct
40 Correct 60 ms 3704 KB Output is correct
41 Correct 43 ms 2832 KB Output is correct
42 Correct 44 ms 2864 KB Output is correct
43 Correct 53 ms 2944 KB Output is correct
44 Correct 52 ms 2944 KB Output is correct
45 Correct 34 ms 3756 KB Output is correct
46 Correct 34 ms 3240 KB Output is correct
47 Correct 37 ms 3660 KB Output is correct
48 Correct 57 ms 3744 KB Output is correct
49 Correct 29 ms 3508 KB Output is correct
50 Correct 47 ms 3344 KB Output is correct