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Submission #35292

# Submission time Handle Problem Language Result Execution time Memory
35292 2017-11-19T16:14:47 Z dqhungdl Bootfall (IZhO17_bootfall) C++14
13 / 100
 0 ms 4948 KB 
#include <bits/stdc++.h>
using namespace std;

const int mod=1e9+7,mod2=1e9+7;
int n,sum,a[505],C[250005],f[250005],f2[250005];
vector<int> rs;

bool Special()
{
    if(sum%2==1)
        return false;
    f[0]=1;
    for(int i=1;i<=n;i++)
        for(int j=sum;j>=a[i];j--)
            f[j]=f[j]+f[j-a[i]];
    return (f[sum/2]>0);
}

void Check(int pos)
{
    for(int i=a[pos];i<=sum;i++)
        f[i]=f[i]-f[i-a[pos]];
    for(int i=0;i<(sum-a[pos]+1)/2;i++)
        if(f[i]>0||f2[i]>0)
            C[sum-a[pos]-2*i]++;
    for(int i=sum;i>=a[pos];i--)
        f[i]=f[i]+f[i-a[pos]];
}

int main()
{
    //freopen("TEST.INP","r",stdin);
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
        sum+=a[i];
    }
    if(Special()==false)
    {
        cout<<0;
        return 0;
    }
    for(int i=1;i<=n;i++)
        Check(i);
    for(int i=1;i<=sum;i++)
        if(C[i]==n)
            rs.push_back(i);
    cout<<rs.size()<<"\n";
    for(int i=0;i<rs.size();i++)
        cout<<rs[i]<<' ';
}

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:50:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<rs.size();i++)
                  ^

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4948 KB Output is correct
2 Correct 0 ms 4948 KB Output is correct
3 Correct 0 ms 4948 KB Output is correct
4 Correct 0 ms 4948 KB Output is correct
5 Correct 0 ms 4948 KB Output is correct
6 Correct 0 ms 4948 KB Output is correct
7 Correct 0 ms 4948 KB Output is correct
8 Correct 0 ms 4948 KB Output is correct
9 Correct 0 ms 4948 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4948 KB Output is correct
2 Correct 0 ms 4948 KB Output is correct
3 Correct 0 ms 4948 KB Output is correct
4 Correct 0 ms 4948 KB Output is correct
5 Correct 0 ms 4948 KB Output is correct
6 Correct 0 ms 4948 KB Output is correct
7 Correct 0 ms 4948 KB Output is correct
8 Correct 0 ms 4948 KB Output is correct
9 Correct 0 ms 4948 KB Output is correct
10 Correct 0 ms 4948 KB Output is correct
11 Correct 0 ms 4948 KB Output is correct
12 Correct 0 ms 4948 KB Output is correct
13 Correct 0 ms 4948 KB Output is correct
14 Correct 0 ms 4948 KB Output is correct
15 Correct 0 ms 4948 KB Output is correct
16 Correct 0 ms 4948 KB Output is correct
17 Correct 0 ms 4948 KB Output is correct
18 Correct 0 ms 4948 KB Output is correct
19 Correct 0 ms 4948 KB Output is correct
20 Correct 0 ms 4948 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4948 KB Output is correct
2 Correct 0 ms 4948 KB Output is correct
3 Correct 0 ms 4948 KB Output is correct
4 Correct 0 ms 4948 KB Output is correct
5 Correct 0 ms 4948 KB Output is correct
6 Correct 0 ms 4948 KB Output is correct
7 Correct 0 ms 4948 KB Output is correct
8 Correct 0 ms 4948 KB Output is correct
9 Correct 0 ms 4948 KB Output is correct
10 Correct 0 ms 4948 KB Output is correct
11 Correct 0 ms 4948 KB Output is correct
12 Correct 0 ms 4948 KB Output is correct
13 Correct 0 ms 4948 KB Output is correct
14 Correct 0 ms 4948 KB Output is correct
15 Correct 0 ms 4948 KB Output is correct
16 Correct 0 ms 4948 KB Output is correct
17 Correct 0 ms 4948 KB Output is correct
18 Correct 0 ms 4948 KB Output is correct
19 Correct 0 ms 4948 KB Output is correct
20 Correct 0 ms 4948 KB Output is correct
21 Incorrect 0 ms 4948 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4948 KB Output is correct
2 Correct 0 ms 4948 KB Output is correct
3 Correct 0 ms 4948 KB Output is correct
4 Correct 0 ms 4948 KB Output is correct
5 Correct 0 ms 4948 KB Output is correct
6 Correct 0 ms 4948 KB Output is correct
7 Correct 0 ms 4948 KB Output is correct
8 Correct 0 ms 4948 KB Output is correct
9 Correct 0 ms 4948 KB Output is correct
10 Correct 0 ms 4948 KB Output is correct
11 Correct 0 ms 4948 KB Output is correct
12 Correct 0 ms 4948 KB Output is correct
13 Correct 0 ms 4948 KB Output is correct
14 Correct 0 ms 4948 KB Output is correct
15 Correct 0 ms 4948 KB Output is correct
16 Correct 0 ms 4948 KB Output is correct
17 Correct 0 ms 4948 KB Output is correct
18 Correct 0 ms 4948 KB Output is correct
19 Correct 0 ms 4948 KB Output is correct
20 Correct 0 ms 4948 KB Output is correct
21 Incorrect 0 ms 4948 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4948 KB Output is correct
2 Correct 0 ms 4948 KB Output is correct
3 Correct 0 ms 4948 KB Output is correct
4 Correct 0 ms 4948 KB Output is correct
5 Correct 0 ms 4948 KB Output is correct
6 Correct 0 ms 4948 KB Output is correct
7 Correct 0 ms 4948 KB Output is correct
8 Correct 0 ms 4948 KB Output is correct
9 Correct 0 ms 4948 KB Output is correct
10 Correct 0 ms 4948 KB Output is correct
11 Correct 0 ms 4948 KB Output is correct
12 Correct 0 ms 4948 KB Output is correct
13 Correct 0 ms 4948 KB Output is correct
14 Correct 0 ms 4948 KB Output is correct
15 Correct 0 ms 4948 KB Output is correct
16 Correct 0 ms 4948 KB Output is correct
17 Correct 0 ms 4948 KB Output is correct
18 Correct 0 ms 4948 KB Output is correct
19 Correct 0 ms 4948 KB Output is correct
20 Correct 0 ms 4948 KB Output is correct
21 Incorrect 0 ms 4948 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4948 KB Output is correct
2 Correct 0 ms 4948 KB Output is correct
3 Correct 0 ms 4948 KB Output is correct
4 Correct 0 ms 4948 KB Output is correct
5 Correct 0 ms 4948 KB Output is correct
6 Correct 0 ms 4948 KB Output is correct
7 Correct 0 ms 4948 KB Output is correct
8 Correct 0 ms 4948 KB Output is correct
9 Correct 0 ms 4948 KB Output is correct
10 Correct 0 ms 4948 KB Output is correct
11 Correct 0 ms 4948 KB Output is correct
12 Correct 0 ms 4948 KB Output is correct
13 Correct 0 ms 4948 KB Output is correct
14 Correct 0 ms 4948 KB Output is correct
15 Correct 0 ms 4948 KB Output is correct
16 Correct 0 ms 4948 KB Output is correct
17 Correct 0 ms 4948 KB Output is correct
18 Correct 0 ms 4948 KB Output is correct
19 Correct 0 ms 4948 KB Output is correct
20 Correct 0 ms 4948 KB Output is correct
21 Incorrect 0 ms 4948 KB Output isn't correct
22 Halted 0 ms 0 KB -