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Submission #760327

# Submission time Handle Problem Language Result Execution time Memory
760327 2023-06-17T12:44:20 Z sofija6 Knapsack (NOI18_knapsack) C++14
100 / 100
 36 ms 2880 KB 
#include <bits/stdc++.h>
#define ll long long
#define MAXN 100010
#define MAXS 2010
using namespace std;
vector<pair<ll,ll> > items[MAXS];
vector<pair<ll,ll> > cur;
ll dp[MAXS][2];
int main()
{
    ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    ll s,n,v,w,k,ans=0;
    cin >> s >> n;
    for (ll i=1;i<=n;i++)
    {
        cin >> v >> w >> k;
        items[w].push_back({v,k});
    }
    for (ll i=1;i<=s;i++)
    {
        if (items[i].empty())
            continue;
        sort(items[i].begin(),items[i].end(),greater<pair<ll,ll> >());
        cur.clear();
        ll sum=0,pos=0;
        for (ll j=0;(j+1)*i<=s;j++)
        {
            if (!items[i][pos].second)
                pos++;
            if (pos==items[i].size())
                break;
            items[i][pos].second--;
            sum+=items[i][pos].first;
            cur.push_back({(j+1)*i,sum});
        }
        for (auto j : cur)
        {
            w=j.first;
            v=j.second;
            for (ll l=0;l+w<=s;l++)
                dp[l+w][1]=max(dp[l+w][1],dp[l][0]+v);
        }
        for (ll j=0;j<=s;j++)
            dp[j][0]=dp[j][1];
    }
    for (ll i=1;i<=s;i++)
        ans=max(ans,dp[i][0]);
    cout << ans;
    return 0;
}

Compilation message

knapsack.cpp: In function 'int main()':
knapsack.cpp:30:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |             if (pos==items[i].size())
      |                 ~~~^~~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 0 ms 340 KB Output is correct
5 Correct 1 ms 376 KB Output is correct
6 Correct 1 ms 340 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

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 0 ms 340 KB Output is correct
5 Correct 1 ms 376 KB Output is correct
6 Correct 1 ms 340 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 340 KB Output is correct
12 Correct 2 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 0 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 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 376 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 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 340 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 0 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 0 ms 340 KB Output is correct
26 Correct 2 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 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 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 376 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 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 340 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 0 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 0 ms 340 KB Output is correct
26 Correct 2 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 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 22 ms 2512 KB Output is correct
36 Correct 25 ms 2512 KB Output is correct
37 Correct 24 ms 2468 KB Output is correct
38 Correct 22 ms 2356 KB Output is correct
39 Correct 26 ms 2196 KB Output is correct
40 Correct 36 ms 2668 KB Output is correct
41 Correct 29 ms 2716 KB Output is correct
42 Correct 28 ms 2644 KB Output is correct
43 Correct 32 ms 2764 KB Output is correct
44 Correct 32 ms 2772 KB Output is correct
45 Correct 25 ms 2652 KB Output is correct
46 Correct 31 ms 2508 KB Output is correct
47 Correct 34 ms 2880 KB Output is correct
48 Correct 29 ms 2644 KB Output is correct
49 Correct 23 ms 2644 KB Output is correct
50 Correct 30 ms 2344 KB Output is correct