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Submission #1029915

# Submission time Handle Problem Language Result Execution time Memory
1029915 2024-07-21T13:47:11 Z andrewp Bootfall (IZhO17_bootfall) C++14
13 / 100
 42 ms 3420 KB 
#include <bits/stdc++.h>

using namespace std;

#define ll int64_t
#define ar array
#define dbg(x) cerr << #x << ": " << x << "\n";

const int mxN=5e2+3;
int n, a[mxN], dp[mxN*mxN][2];

int main() {
    ios::sync_with_stdio(0);
	cin.tie(0);

    cin >> n;
    int sum=0;
    for(int i=1; i<=n; ++i) {
        cin >> a[i];
        sum+=a[i];
    }
    dp[0][0]=1;
    for(int i=1; i<=n; ++i) {
        for(int s=mxN*mxN-1; s>=a[i]; --s) {
            dp[s][0]+=dp[s-a[i]][0];
        }
    }
    if(sum%2==1) {
        cout << 0 << "\n";
        return 0;
    }
    if(dp[sum/2][0]==0) {
        cout << 0 << "\n";
        return 0;
    }
    vector<int> brM(mxN*mxN, 0);
    for(int i=1; i<=n; ++i) {
        for(int s=0; s<mxN*mxN; ++s) {
            dp[s][1]=dp[s][0];
        }
        for(int s=0; s<mxN*mxN; ++s) {
            if(s+a[i]>=mxN*mxN) break;
            dp[s+a[i]][1]-=dp[s][1];
        }
        for(int s=0; s<mxN*mxN; ++s) {
            int get=s+sum-a[i];
            if(get%2==0&&get/2>=s&&dp[get/2-s][1]>0) {
                ++brM[s];
            }
        }
    }
    vector<int> ans;
    for(int s=0; s<mxN*mxN; ++s) {
        if(brM[s]==n) ans.push_back(s);
    }
    cout << ans.size() << "\n";
    for(int x:ans) cout << x << " ";
    cout << "\n";
    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 3420 KB Output is correct
2 Correct 9 ms 3248 KB Output is correct
3 Correct 2 ms 2396 KB Output is correct
4 Correct 5 ms 3420 KB Output is correct
5 Correct 8 ms 3420 KB Output is correct
6 Correct 6 ms 3420 KB Output is correct
7 Correct 9 ms 3276 KB Output is correct
8 Correct 10 ms 3420 KB Output is correct
9 Correct 9 ms 3420 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 3420 KB Output is correct
2 Correct 9 ms 3248 KB Output is correct
3 Correct 2 ms 2396 KB Output is correct
4 Correct 5 ms 3420 KB Output is correct
5 Correct 8 ms 3420 KB Output is correct
6 Correct 6 ms 3420 KB Output is correct
7 Correct 9 ms 3276 KB Output is correct
8 Correct 10 ms 3420 KB Output is correct
9 Correct 9 ms 3420 KB Output is correct
10 Correct 18 ms 3420 KB Output is correct
11 Correct 17 ms 3208 KB Output is correct
12 Correct 18 ms 3420 KB Output is correct
13 Correct 24 ms 3420 KB Output is correct
14 Correct 16 ms 3420 KB Output is correct
15 Correct 27 ms 3420 KB Output is correct
16 Correct 17 ms 3420 KB Output is correct
17 Correct 11 ms 3420 KB Output is correct
18 Correct 14 ms 3420 KB Output is correct
19 Correct 22 ms 3420 KB Output is correct
20 Correct 24 ms 3204 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 3420 KB Output is correct
2 Correct 9 ms 3248 KB Output is correct
3 Correct 2 ms 2396 KB Output is correct
4 Correct 5 ms 3420 KB Output is correct
5 Correct 8 ms 3420 KB Output is correct
6 Correct 6 ms 3420 KB Output is correct
7 Correct 9 ms 3276 KB Output is correct
8 Correct 10 ms 3420 KB Output is correct
9 Correct 9 ms 3420 KB Output is correct
10 Correct 18 ms 3420 KB Output is correct
11 Correct 17 ms 3208 KB Output is correct
12 Correct 18 ms 3420 KB Output is correct
13 Correct 24 ms 3420 KB Output is correct
14 Correct 16 ms 3420 KB Output is correct
15 Correct 27 ms 3420 KB Output is correct
16 Correct 17 ms 3420 KB Output is correct
17 Correct 11 ms 3420 KB Output is correct
18 Correct 14 ms 3420 KB Output is correct
19 Correct 22 ms 3420 KB Output is correct
20 Correct 24 ms 3204 KB Output is correct
21 Incorrect 42 ms 3208 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 3420 KB Output is correct
2 Correct 9 ms 3248 KB Output is correct
3 Correct 2 ms 2396 KB Output is correct
4 Correct 5 ms 3420 KB Output is correct
5 Correct 8 ms 3420 KB Output is correct
6 Correct 6 ms 3420 KB Output is correct
7 Correct 9 ms 3276 KB Output is correct
8 Correct 10 ms 3420 KB Output is correct
9 Correct 9 ms 3420 KB Output is correct
10 Correct 18 ms 3420 KB Output is correct
11 Correct 17 ms 3208 KB Output is correct
12 Correct 18 ms 3420 KB Output is correct
13 Correct 24 ms 3420 KB Output is correct
14 Correct 16 ms 3420 KB Output is correct
15 Correct 27 ms 3420 KB Output is correct
16 Correct 17 ms 3420 KB Output is correct
17 Correct 11 ms 3420 KB Output is correct
18 Correct 14 ms 3420 KB Output is correct
19 Correct 22 ms 3420 KB Output is correct
20 Correct 24 ms 3204 KB Output is correct
21 Incorrect 42 ms 3208 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 3420 KB Output is correct
2 Correct 9 ms 3248 KB Output is correct
3 Correct 2 ms 2396 KB Output is correct
4 Correct 5 ms 3420 KB Output is correct
5 Correct 8 ms 3420 KB Output is correct
6 Correct 6 ms 3420 KB Output is correct
7 Correct 9 ms 3276 KB Output is correct
8 Correct 10 ms 3420 KB Output is correct
9 Correct 9 ms 3420 KB Output is correct
10 Correct 18 ms 3420 KB Output is correct
11 Correct 17 ms 3208 KB Output is correct
12 Correct 18 ms 3420 KB Output is correct
13 Correct 24 ms 3420 KB Output is correct
14 Correct 16 ms 3420 KB Output is correct
15 Correct 27 ms 3420 KB Output is correct
16 Correct 17 ms 3420 KB Output is correct
17 Correct 11 ms 3420 KB Output is correct
18 Correct 14 ms 3420 KB Output is correct
19 Correct 22 ms 3420 KB Output is correct
20 Correct 24 ms 3204 KB Output is correct
21 Incorrect 42 ms 3208 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 3420 KB Output is correct
2 Correct 9 ms 3248 KB Output is correct
3 Correct 2 ms 2396 KB Output is correct
4 Correct 5 ms 3420 KB Output is correct
5 Correct 8 ms 3420 KB Output is correct
6 Correct 6 ms 3420 KB Output is correct
7 Correct 9 ms 3276 KB Output is correct
8 Correct 10 ms 3420 KB Output is correct
9 Correct 9 ms 3420 KB Output is correct
10 Correct 18 ms 3420 KB Output is correct
11 Correct 17 ms 3208 KB Output is correct
12 Correct 18 ms 3420 KB Output is correct
13 Correct 24 ms 3420 KB Output is correct
14 Correct 16 ms 3420 KB Output is correct
15 Correct 27 ms 3420 KB Output is correct
16 Correct 17 ms 3420 KB Output is correct
17 Correct 11 ms 3420 KB Output is correct
18 Correct 14 ms 3420 KB Output is correct
19 Correct 22 ms 3420 KB Output is correct
20 Correct 24 ms 3204 KB Output is correct
21 Incorrect 42 ms 3208 KB Output isn't correct
22 Halted 0 ms 0 KB -