oj.uz

Submission #514906

# Submission time Handle Problem Language Result Execution time Memory
514906 2022-01-18T18:53:03 Z Mahdi Kitchen (BOI19_kitchen) C++17
100 / 100
 14 ms 972 KB 
#include<bits/stdc++.h>
#pragma GCC optimize("Ofast")
using namespace std;
#define all(v) v.begin(), v.end()
#define F first
#define S second
typedef long long ll;
typedef pair<int, int> pii;
const int N=305;
int n, m, k, a[N], b[N], c[N*N], d[N*N];
bitset<N*N>e;
int s=1, ss=1;

int bin(int l){
    if(e[l])
        return l;
    int r=ss, h=d[l];
    while(r-l>1){
        int mid=(l+r)/2;
        if(d[mid]>h)
            r=mid;
        else
            l=mid;
    }
    if(r==ss)
        return 2e9;
    return r;
}

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin>>n>>m>>k;
    for(int i=0;i<n;++i)
        cin>>a[i];
    for(int i=0;i<m;++i)
        cin>>b[i];
    for(int i=0;i<n;++i){
        if(a[i]<k){
            cout<<"Impossible";
            return 0;
        }
    }
    sort(b, b+m);
    int id=0;
    while(id<m && b[id]<n)
        ++id;
    for(int i=id;i<m;++i)
        s+=b[i];
    memset(c, -1, sizeof(c));
    c[0]=0;
    for(int i=id;i<m;++i){
        for(int j=s-1;j>=b[i];--j){
            if(c[j-b[i]]!=-1)
                c[j]=max(c[j], c[j-b[i]]+1);
        }
    }
    for(int i=0;i<id;++i)
        ss+=b[i];
    e.set(0);
    for(int i=0;i<id;++i)
        e|=(e<<b[i]);
    d[0]=1;
    for(int i=1;i<ss;++i){
        d[i]=d[i-1];
        if(e.test(i))
            ++d[i];
    }
    int ans=1e9;
    int sum=0;
    for(int i=0;i<n;++i)
        sum+=a[i];
    int h=0;
    for(int i=0;i<s;++i){
        if(c[i]==-1)
            continue;
        int z=bin(max(0, max(sum-i, (k-c[i])*n)));
        ++h;
        ans=min(ans, z+i-sum);
    }
    bin(8);
    if(ans>s+ss)
        cout<<"Impossible";
    else
        cout<<ans<<'\n';
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 588 KB Output is correct
2 Correct 0 ms 588 KB Output is correct
3 Correct 0 ms 588 KB Output is correct
4 Correct 0 ms 588 KB Output is correct
5 Correct 0 ms 588 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 336 KB Output is correct
8 Correct 1 ms 592 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 588 KB Output is correct
2 Correct 0 ms 588 KB Output is correct
3 Correct 0 ms 588 KB Output is correct
4 Correct 0 ms 588 KB Output is correct
5 Correct 0 ms 588 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 336 KB Output is correct
8 Correct 1 ms 592 KB Output is correct
9 Correct 0 ms 592 KB Output is correct
10 Correct 1 ms 720 KB Output is correct
11 Correct 1 ms 592 KB Output is correct
12 Correct 1 ms 592 KB Output is correct
13 Correct 1 ms 728 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 844 KB Output is correct
3 Correct 1 ms 844 KB Output is correct
4 Correct 4 ms 844 KB Output is correct
5 Correct 2 ms 972 KB Output is correct
6 Correct 1 ms 844 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 588 KB Output is correct
2 Correct 1 ms 588 KB Output is correct
3 Correct 1 ms 588 KB Output is correct
4 Correct 1 ms 588 KB Output is correct
5 Correct 0 ms 336 KB Output is correct

Subtask #5
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 588 KB Output is correct
2 Correct 0 ms 588 KB Output is correct
3 Correct 0 ms 588 KB Output is correct
4 Correct 0 ms 588 KB Output is correct
5 Correct 0 ms 588 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 336 KB Output is correct
8 Correct 1 ms 592 KB Output is correct
9 Correct 0 ms 592 KB Output is correct
10 Correct 1 ms 720 KB Output is correct
11 Correct 1 ms 592 KB Output is correct
12 Correct 1 ms 592 KB Output is correct
13 Correct 1 ms 728 KB Output is correct
14 Correct 1 ms 972 KB Output is correct
15 Correct 1 ms 844 KB Output is correct
16 Correct 1 ms 844 KB Output is correct
17 Correct 4 ms 844 KB Output is correct
18 Correct 2 ms 972 KB Output is correct
19 Correct 1 ms 844 KB Output is correct
20 Correct 1 ms 588 KB Output is correct
21 Correct 1 ms 588 KB Output is correct
22 Correct 1 ms 588 KB Output is correct
23 Correct 1 ms 588 KB Output is correct
24 Correct 0 ms 336 KB Output is correct
25 Correct 11 ms 704 KB Output is correct
26 Correct 12 ms 600 KB Output is correct
27 Correct 3 ms 720 KB Output is correct
28 Correct 4 ms 724 KB Output is correct
29 Correct 14 ms 592 KB Output is correct
30 Correct 6 ms 836 KB Output is correct