oj.uz

Submission #447962

# Submission time Handle Problem Language Result Execution time Memory
447962 2021-07-28T09:35:01 Z kakayoshi Knapsack (NOI18_knapsack) C++14
100 / 100
 68 ms 5008 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef pair<ll,ll> data;
typedef pair<ll, pair<ll,ll> > super;
typedef vector <ll> vii;
#define forw(i,a,b) for (ll i=a;i<=b;i++)
#define forb(i,a,b) for (ll i=a;i>=b;i--)
#define fast {ios::sync_with_stdio(false); cin.tie(0); }
#define fi first
#define se second
#define pu push
#define puf push_front
#define pb push_back
#define pof pop_front
#define pob pop_back
#define fr front
#define all(a) a.begin(),a.end()
const ll oo=1e18;
const ll mod=1e9+7;
const ll maxN=3e5+5;
const int tx[4]={0,0,1,-1};
const int ty[4]={1,-1,0,1};
const ll base=31;
int dp[2005],n,S,v,w,k;
vector <int> pre[2005];
vector<data> a[2005];
void solve()
{
    cin>>S>>n;
    forw(i,1,n)
    {
        cin>>v>>w>>k;
        a[w].pb({v,k});
    }
    forw(i,1,S)
    if (a[i].size())
    {
        sort(all(a[i]),greater<data>());
        pre[i].pb(0);
        int index=0;
       // cout<<i<<endl;
        forw(j,0,S/i)
        {
            if (index==a[i].size()) break;
            pre[i].pb(pre[i][j]+a[i][index].fi);
            //cout<<a[i][index].fi<<" ";
            a[i][index].se--;
            if (!a[i][index].se) index++;
        }
        //cout<<pre[i].size()<<endl;
        //cout<<endl;
    }
    forw(i,1,S)
    if (pre[i].size())
    {
        forb(w,S,1)
            forw(k,0,pre[i].size()-2)
            {
                if (w-i*(k+1)<0) break;
                dp[w]=max(dp[w],dp[w-i*(k+1)]+pre[i][k+1]);
            }
    }
    int ans=0;
    forw(i,1,S)
        ans=max(ans,dp[i]);
    cout<<ans;
}
int main()
{
    fast;
    //freopen("test.inp","r",stdin);
    //freopen("test.out","w",stdout);
    int t=1; //cin>>t;
    while (t--)
        solve();
    return 0;
}

Compilation message

knapsack.cpp: In function 'void solve()':
knapsack.cpp:45:22: 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]
   45 |             if (index==a[i].size()) break;
      |                 ~~~~~^~~~~~~~~~~~~
knapsack.cpp:7:34: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    7 | #define forw(i,a,b) for (ll i=a;i<=b;i++)
......
   58 |             forw(k,0,pre[i].size()-2)
      |                  ~~~~~~~~~~~~~~~~~~~
knapsack.cpp:58:13: note: in expansion of macro 'forw'
   58 |             forw(k,0,pre[i].size()-2)
      |             ^~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 3 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 2 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 3 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 2 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 4 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 2 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 3 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 2 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 4 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 2 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 35 ms 2608 KB Output is correct
36 Correct 42 ms 3528 KB Output is correct
37 Correct 39 ms 3368 KB Output is correct
38 Correct 39 ms 3740 KB Output is correct
39 Correct 55 ms 4304 KB Output is correct
40 Correct 68 ms 4744 KB Output is correct
41 Correct 52 ms 3940 KB Output is correct
42 Correct 55 ms 3948 KB Output is correct
43 Correct 66 ms 4060 KB Output is correct
44 Correct 60 ms 4036 KB Output is correct
45 Correct 46 ms 4764 KB Output is correct
46 Correct 44 ms 4040 KB Output is correct
47 Correct 61 ms 5008 KB Output is correct
48 Correct 56 ms 4680 KB Output is correct
49 Correct 42 ms 4548 KB Output is correct
50 Correct 66 ms 4220 KB Output is correct