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Submission #629500

# Submission time Handle Problem Language Result Execution time Memory
629500 2022-08-14T14:49:06 Z leeminhduc2 Knapsack (NOI18_knapsack) C++17
100 / 100
 129 ms 8344 KB 
#include <bits/stdc++.h>
#define ll int
#define ft first
#define sc second
using namespace std;
const int N=1e5+10;
ll s,n,dp[N];
vector <pair<int,int>> v[N];
vector <int>pre[N];
int cal(int i,int j)
{
    return pre[i][j-1];
}
void lulu_solution()
{
    cin >> s >> n;
    for (int i=1;i<=s;i++) dp[i]=-1044266559;
    dp[0]=0;
    int res=dp[1];
    for (ll i=1;i<=n;i++)
    {
        int val,w,k;
        cin >> val >>w >> k;
        v[w].push_back({val,k});
    }
    for (ll i=1;i<=s;i++)
    {
        sort(v[i].begin(),v[i].end(),greater<pair<ll,ll>>());
        int cur=0;
        int cnt=s/i;
        for (int j=0;j<v[i].size();j++)
        {
            while (v[i][j].sc&&cnt)
            {
                cur+=v[i][j].ft;
                --cnt;
                --v[i][j].sc;
                pre[i].push_back(cur);
            }
        }
    }
    for (ll i=1; i<=s; i++)
    {
        for (int j=s;j>=i;j--)
        {
            for (int k=j-i;(k>=0&&(j-k)/i<=(int) pre[i].size());k-=i) dp[j]=max(dp[j],dp[k]+cal(i,(j-k)/i));
        }
    }
    cout << *max_element(dp,dp+s+1);

}
signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    lulu_solution();
}

Compilation message

knapsack.cpp: In function 'void lulu_solution()':
knapsack.cpp:31:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |         for (int j=0;j<v[i].size();j++)
      |                      ~^~~~~~~~~~~~
knapsack.cpp:19:9: warning: unused variable 'res' [-Wunused-variable]
   19 |     int res=dp[1];
      |         ^~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4948 KB Output is correct
2 Correct 8 ms 4948 KB Output is correct
3 Correct 8 ms 5024 KB Output is correct
4 Correct 6 ms 4948 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 16 ms 4948 KB Output is correct
3 Correct 15 ms 4948 KB Output is correct
4 Correct 14 ms 4948 KB Output is correct
5 Correct 14 ms 4948 KB Output is correct
6 Correct 13 ms 5020 KB Output is correct
7 Correct 14 ms 4948 KB Output is correct
8 Correct 13 ms 4948 KB Output is correct
9 Correct 13 ms 5032 KB Output is correct
10 Correct 14 ms 5016 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 16 ms 4948 KB Output is correct
3 Correct 15 ms 4948 KB Output is correct
4 Correct 14 ms 4948 KB Output is correct
5 Correct 14 ms 4948 KB Output is correct
6 Correct 13 ms 5020 KB Output is correct
7 Correct 14 ms 4948 KB Output is correct
8 Correct 13 ms 4948 KB Output is correct
9 Correct 13 ms 5032 KB Output is correct
10 Correct 14 ms 5016 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 23 ms 5024 KB Output is correct
13 Correct 15 ms 4948 KB Output is correct
14 Correct 13 ms 5032 KB Output is correct
15 Correct 15 ms 5036 KB Output is correct
16 Correct 15 ms 5024 KB Output is correct
17 Correct 16 ms 4948 KB Output is correct
18 Correct 14 ms 4948 KB Output is correct
19 Correct 18 ms 4948 KB Output is correct
20 Correct 15 ms 4948 KB Output is correct

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4948 KB Output is correct
2 Correct 8 ms 4948 KB Output is correct
3 Correct 8 ms 5024 KB Output is correct
4 Correct 6 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 16 ms 4948 KB Output is correct
7 Correct 15 ms 4948 KB Output is correct
8 Correct 14 ms 4948 KB Output is correct
9 Correct 14 ms 4948 KB Output is correct
10 Correct 13 ms 5020 KB Output is correct
11 Correct 14 ms 4948 KB Output is correct
12 Correct 13 ms 4948 KB Output is correct
13 Correct 13 ms 5032 KB Output is correct
14 Correct 14 ms 5016 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 23 ms 5024 KB Output is correct
17 Correct 15 ms 4948 KB Output is correct
18 Correct 13 ms 5032 KB Output is correct
19 Correct 15 ms 5036 KB Output is correct
20 Correct 15 ms 5024 KB Output is correct
21 Correct 16 ms 4948 KB Output is correct
22 Correct 14 ms 4948 KB Output is correct
23 Correct 18 ms 4948 KB Output is correct
24 Correct 15 ms 4948 KB Output is correct
25 Correct 4 ms 5024 KB Output is correct
26 Correct 28 ms 4948 KB Output is correct
27 Correct 13 ms 5020 KB Output is correct
28 Correct 14 ms 5036 KB Output is correct
29 Correct 13 ms 5020 KB Output is correct
30 Correct 16 ms 5048 KB Output is correct
31 Correct 15 ms 4948 KB Output is correct
32 Correct 14 ms 5028 KB Output is correct
33 Correct 15 ms 5020 KB Output is correct
34 Correct 15 ms 5044 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4948 KB Output is correct
2 Correct 8 ms 4948 KB Output is correct
3 Correct 8 ms 5024 KB Output is correct
4 Correct 6 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 16 ms 4948 KB Output is correct
7 Correct 15 ms 4948 KB Output is correct
8 Correct 14 ms 4948 KB Output is correct
9 Correct 14 ms 4948 KB Output is correct
10 Correct 13 ms 5020 KB Output is correct
11 Correct 14 ms 4948 KB Output is correct
12 Correct 13 ms 4948 KB Output is correct
13 Correct 13 ms 5032 KB Output is correct
14 Correct 14 ms 5016 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 23 ms 5024 KB Output is correct
17 Correct 15 ms 4948 KB Output is correct
18 Correct 13 ms 5032 KB Output is correct
19 Correct 15 ms 5036 KB Output is correct
20 Correct 15 ms 5024 KB Output is correct
21 Correct 16 ms 4948 KB Output is correct
22 Correct 14 ms 4948 KB Output is correct
23 Correct 18 ms 4948 KB Output is correct
24 Correct 15 ms 4948 KB Output is correct
25 Correct 4 ms 5024 KB Output is correct
26 Correct 28 ms 4948 KB Output is correct
27 Correct 13 ms 5020 KB Output is correct
28 Correct 14 ms 5036 KB Output is correct
29 Correct 13 ms 5020 KB Output is correct
30 Correct 16 ms 5048 KB Output is correct
31 Correct 15 ms 4948 KB Output is correct
32 Correct 14 ms 5028 KB Output is correct
33 Correct 15 ms 5020 KB Output is correct
34 Correct 15 ms 5044 KB Output is correct
35 Correct 32 ms 7060 KB Output is correct
36 Correct 63 ms 7196 KB Output is correct
37 Correct 61 ms 7072 KB Output is correct
38 Correct 44 ms 7240 KB Output is correct
39 Correct 61 ms 8036 KB Output is correct
40 Correct 129 ms 8344 KB Output is correct
41 Correct 81 ms 7388 KB Output is correct
42 Correct 81 ms 7512 KB Output is correct
43 Correct 126 ms 7552 KB Output is correct
44 Correct 113 ms 7548 KB Output is correct
45 Correct 53 ms 8272 KB Output is correct
46 Correct 48 ms 7836 KB Output is correct
47 Correct 56 ms 8268 KB Output is correct
48 Correct 83 ms 8112 KB Output is correct
49 Correct 47 ms 8012 KB Output is correct
50 Correct 99 ms 7992 KB Output is correct