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Submission #526061

# Submission time Handle Problem Language Result Execution time Memory
526061 2022-02-13T16:16:47 Z TheKingAleks Bootfall (IZhO17_bootfall) C++14
13 / 100
 28 ms 1324 KB 
#include<bits/stdc++.h>
using namespace std;
const int MAX_N = 505;
const int MAX_N2 = 255025;
int sum,n,dp[MAX_N2],cnt[MAX_N2],a[MAX_N];
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    cin>>n;
    for(int i=0; i<n; i++)
    {
        cin>>a[i];
        sum+=a[i];
    }
    dp[0] = 1;
    for(int i=0; i<n; i++)
    {
        for(int s=MAX_N2-a[i]; s>=0; s--)
        {
            dp[s+a[i]] += dp[s];
        }
    }
    if(sum%2 != 0 || dp[sum/2] == 0)
    {
        cout<<0<<endl;
        return 0;
    }
    for(int i=0; i<n; i++) /// ignore i-th
    {
        for(int s=0; s+a[i]<MAX_N2; s++)
        {
            dp[s+a[i]] -= dp[s];
        }
        sum-=a[i];
        for(int x0=0; x0<MAX_N2 && x0<=sum; x0++)
        {
            if((sum+x0)%2 == 0)
            {
                if(dp[(sum+x0)/2] > 0)
                {
                    cnt[x0]++;
                }
            }
        }
        sum+=a[i];
        for(int s=MAX_N2-a[i]-1; s>=0; s--)
        {
            dp[s+a[i]] += dp[s];
        }
    }
    vector<int> res;
    for(int x0=0; x0<MAX_N2; x0++)
    {
        if(cnt[x0] == n)
        {
            res.push_back(x0);
        }
    }
    cout<<res.size()<<endl;
    for(auto x: res) cout<<x<<" ";

}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1228 KB Output is correct
2 Correct 4 ms 1228 KB Output is correct
3 Correct 1 ms 1228 KB Output is correct
4 Correct 3 ms 1228 KB Output is correct
5 Correct 6 ms 1228 KB Output is correct
6 Correct 5 ms 1228 KB Output is correct
7 Correct 4 ms 1228 KB Output is correct
8 Correct 6 ms 1228 KB Output is correct
9 Correct 5 ms 1228 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1228 KB Output is correct
2 Correct 4 ms 1228 KB Output is correct
3 Correct 1 ms 1228 KB Output is correct
4 Correct 3 ms 1228 KB Output is correct
5 Correct 6 ms 1228 KB Output is correct
6 Correct 5 ms 1228 KB Output is correct
7 Correct 4 ms 1228 KB Output is correct
8 Correct 6 ms 1228 KB Output is correct
9 Correct 5 ms 1228 KB Output is correct
10 Correct 13 ms 1228 KB Output is correct
11 Correct 16 ms 1228 KB Output is correct
12 Correct 16 ms 1324 KB Output is correct
13 Correct 12 ms 1316 KB Output is correct
14 Correct 12 ms 1228 KB Output is correct
15 Correct 14 ms 1324 KB Output is correct
16 Correct 15 ms 1324 KB Output is correct
17 Correct 9 ms 1324 KB Output is correct
18 Correct 12 ms 1228 KB Output is correct
19 Correct 11 ms 1228 KB Output is correct
20 Correct 14 ms 1324 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1228 KB Output is correct
2 Correct 4 ms 1228 KB Output is correct
3 Correct 1 ms 1228 KB Output is correct
4 Correct 3 ms 1228 KB Output is correct
5 Correct 6 ms 1228 KB Output is correct
6 Correct 5 ms 1228 KB Output is correct
7 Correct 4 ms 1228 KB Output is correct
8 Correct 6 ms 1228 KB Output is correct
9 Correct 5 ms 1228 KB Output is correct
10 Correct 13 ms 1228 KB Output is correct
11 Correct 16 ms 1228 KB Output is correct
12 Correct 16 ms 1324 KB Output is correct
13 Correct 12 ms 1316 KB Output is correct
14 Correct 12 ms 1228 KB Output is correct
15 Correct 14 ms 1324 KB Output is correct
16 Correct 15 ms 1324 KB Output is correct
17 Correct 9 ms 1324 KB Output is correct
18 Correct 12 ms 1228 KB Output is correct
19 Correct 11 ms 1228 KB Output is correct
20 Correct 14 ms 1324 KB Output is correct
21 Incorrect 28 ms 1228 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1228 KB Output is correct
2 Correct 4 ms 1228 KB Output is correct
3 Correct 1 ms 1228 KB Output is correct
4 Correct 3 ms 1228 KB Output is correct
5 Correct 6 ms 1228 KB Output is correct
6 Correct 5 ms 1228 KB Output is correct
7 Correct 4 ms 1228 KB Output is correct
8 Correct 6 ms 1228 KB Output is correct
9 Correct 5 ms 1228 KB Output is correct
10 Correct 13 ms 1228 KB Output is correct
11 Correct 16 ms 1228 KB Output is correct
12 Correct 16 ms 1324 KB Output is correct
13 Correct 12 ms 1316 KB Output is correct
14 Correct 12 ms 1228 KB Output is correct
15 Correct 14 ms 1324 KB Output is correct
16 Correct 15 ms 1324 KB Output is correct
17 Correct 9 ms 1324 KB Output is correct
18 Correct 12 ms 1228 KB Output is correct
19 Correct 11 ms 1228 KB Output is correct
20 Correct 14 ms 1324 KB Output is correct
21 Incorrect 28 ms 1228 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1228 KB Output is correct
2 Correct 4 ms 1228 KB Output is correct
3 Correct 1 ms 1228 KB Output is correct
4 Correct 3 ms 1228 KB Output is correct
5 Correct 6 ms 1228 KB Output is correct
6 Correct 5 ms 1228 KB Output is correct
7 Correct 4 ms 1228 KB Output is correct
8 Correct 6 ms 1228 KB Output is correct
9 Correct 5 ms 1228 KB Output is correct
10 Correct 13 ms 1228 KB Output is correct
11 Correct 16 ms 1228 KB Output is correct
12 Correct 16 ms 1324 KB Output is correct
13 Correct 12 ms 1316 KB Output is correct
14 Correct 12 ms 1228 KB Output is correct
15 Correct 14 ms 1324 KB Output is correct
16 Correct 15 ms 1324 KB Output is correct
17 Correct 9 ms 1324 KB Output is correct
18 Correct 12 ms 1228 KB Output is correct
19 Correct 11 ms 1228 KB Output is correct
20 Correct 14 ms 1324 KB Output is correct
21 Incorrect 28 ms 1228 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1228 KB Output is correct
2 Correct 4 ms 1228 KB Output is correct
3 Correct 1 ms 1228 KB Output is correct
4 Correct 3 ms 1228 KB Output is correct
5 Correct 6 ms 1228 KB Output is correct
6 Correct 5 ms 1228 KB Output is correct
7 Correct 4 ms 1228 KB Output is correct
8 Correct 6 ms 1228 KB Output is correct
9 Correct 5 ms 1228 KB Output is correct
10 Correct 13 ms 1228 KB Output is correct
11 Correct 16 ms 1228 KB Output is correct
12 Correct 16 ms 1324 KB Output is correct
13 Correct 12 ms 1316 KB Output is correct
14 Correct 12 ms 1228 KB Output is correct
15 Correct 14 ms 1324 KB Output is correct
16 Correct 15 ms 1324 KB Output is correct
17 Correct 9 ms 1324 KB Output is correct
18 Correct 12 ms 1228 KB Output is correct
19 Correct 11 ms 1228 KB Output is correct
20 Correct 14 ms 1324 KB Output is correct
21 Incorrect 28 ms 1228 KB Output isn't correct
22 Halted 0 ms 0 KB -