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Submission #526060

# Submission time Handle Problem Language Result Execution time Memory
526060 2022-02-13T16:14:52 Z TheKingAleks Bootfall (IZhO17_bootfall) C++14
13 / 100
 30 ms 1328 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<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 1316 KB Output is correct
2 Correct 5 ms 1220 KB Output is correct
3 Correct 2 ms 1228 KB Output is correct
4 Correct 4 ms 1228 KB Output is correct
5 Correct 7 ms 1220 KB Output is correct
6 Correct 5 ms 1228 KB Output is correct
7 Correct 4 ms 1228 KB Output is correct
8 Correct 7 ms 1228 KB Output is correct
9 Correct 6 ms 1228 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1316 KB Output is correct
2 Correct 5 ms 1220 KB Output is correct
3 Correct 2 ms 1228 KB Output is correct
4 Correct 4 ms 1228 KB Output is correct
5 Correct 7 ms 1220 KB Output is correct
6 Correct 5 ms 1228 KB Output is correct
7 Correct 4 ms 1228 KB Output is correct
8 Correct 7 ms 1228 KB Output is correct
9 Correct 6 ms 1228 KB Output is correct
10 Correct 15 ms 1228 KB Output is correct
11 Correct 17 ms 1224 KB Output is correct
12 Correct 16 ms 1324 KB Output is correct
13 Correct 13 ms 1320 KB Output is correct
14 Correct 15 ms 1328 KB Output is correct
15 Correct 15 ms 1324 KB Output is correct
16 Correct 18 ms 1228 KB Output is correct
17 Correct 10 ms 1228 KB Output is correct
18 Correct 19 ms 1228 KB Output is correct
19 Correct 14 ms 1324 KB Output is correct
20 Correct 14 ms 1228 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1316 KB Output is correct
2 Correct 5 ms 1220 KB Output is correct
3 Correct 2 ms 1228 KB Output is correct
4 Correct 4 ms 1228 KB Output is correct
5 Correct 7 ms 1220 KB Output is correct
6 Correct 5 ms 1228 KB Output is correct
7 Correct 4 ms 1228 KB Output is correct
8 Correct 7 ms 1228 KB Output is correct
9 Correct 6 ms 1228 KB Output is correct
10 Correct 15 ms 1228 KB Output is correct
11 Correct 17 ms 1224 KB Output is correct
12 Correct 16 ms 1324 KB Output is correct
13 Correct 13 ms 1320 KB Output is correct
14 Correct 15 ms 1328 KB Output is correct
15 Correct 15 ms 1324 KB Output is correct
16 Correct 18 ms 1228 KB Output is correct
17 Correct 10 ms 1228 KB Output is correct
18 Correct 19 ms 1228 KB Output is correct
19 Correct 14 ms 1324 KB Output is correct
20 Correct 14 ms 1228 KB Output is correct
21 Incorrect 30 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 1316 KB Output is correct
2 Correct 5 ms 1220 KB Output is correct
3 Correct 2 ms 1228 KB Output is correct
4 Correct 4 ms 1228 KB Output is correct
5 Correct 7 ms 1220 KB Output is correct
6 Correct 5 ms 1228 KB Output is correct
7 Correct 4 ms 1228 KB Output is correct
8 Correct 7 ms 1228 KB Output is correct
9 Correct 6 ms 1228 KB Output is correct
10 Correct 15 ms 1228 KB Output is correct
11 Correct 17 ms 1224 KB Output is correct
12 Correct 16 ms 1324 KB Output is correct
13 Correct 13 ms 1320 KB Output is correct
14 Correct 15 ms 1328 KB Output is correct
15 Correct 15 ms 1324 KB Output is correct
16 Correct 18 ms 1228 KB Output is correct
17 Correct 10 ms 1228 KB Output is correct
18 Correct 19 ms 1228 KB Output is correct
19 Correct 14 ms 1324 KB Output is correct
20 Correct 14 ms 1228 KB Output is correct
21 Incorrect 30 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 1316 KB Output is correct
2 Correct 5 ms 1220 KB Output is correct
3 Correct 2 ms 1228 KB Output is correct
4 Correct 4 ms 1228 KB Output is correct
5 Correct 7 ms 1220 KB Output is correct
6 Correct 5 ms 1228 KB Output is correct
7 Correct 4 ms 1228 KB Output is correct
8 Correct 7 ms 1228 KB Output is correct
9 Correct 6 ms 1228 KB Output is correct
10 Correct 15 ms 1228 KB Output is correct
11 Correct 17 ms 1224 KB Output is correct
12 Correct 16 ms 1324 KB Output is correct
13 Correct 13 ms 1320 KB Output is correct
14 Correct 15 ms 1328 KB Output is correct
15 Correct 15 ms 1324 KB Output is correct
16 Correct 18 ms 1228 KB Output is correct
17 Correct 10 ms 1228 KB Output is correct
18 Correct 19 ms 1228 KB Output is correct
19 Correct 14 ms 1324 KB Output is correct
20 Correct 14 ms 1228 KB Output is correct
21 Incorrect 30 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 1316 KB Output is correct
2 Correct 5 ms 1220 KB Output is correct
3 Correct 2 ms 1228 KB Output is correct
4 Correct 4 ms 1228 KB Output is correct
5 Correct 7 ms 1220 KB Output is correct
6 Correct 5 ms 1228 KB Output is correct
7 Correct 4 ms 1228 KB Output is correct
8 Correct 7 ms 1228 KB Output is correct
9 Correct 6 ms 1228 KB Output is correct
10 Correct 15 ms 1228 KB Output is correct
11 Correct 17 ms 1224 KB Output is correct
12 Correct 16 ms 1324 KB Output is correct
13 Correct 13 ms 1320 KB Output is correct
14 Correct 15 ms 1328 KB Output is correct
15 Correct 15 ms 1324 KB Output is correct
16 Correct 18 ms 1228 KB Output is correct
17 Correct 10 ms 1228 KB Output is correct
18 Correct 19 ms 1228 KB Output is correct
19 Correct 14 ms 1324 KB Output is correct
20 Correct 14 ms 1228 KB Output is correct
21 Incorrect 30 ms 1228 KB Output isn't correct
22 Halted 0 ms 0 KB -