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Submission #1029925

# Submission time Handle Problem Language Result Execution time Memory
1029925 2024-07-21T14:00:17 Z andrewp Bootfall (IZhO17_bootfall) C++17
13 / 100
 35 ms 3252 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], brM[mxN*mxN];

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;
    }
    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-a[i]; ++s) {
            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 4 ms 2392 KB Output is correct
2 Correct 6 ms 2448 KB Output is correct
3 Correct 2 ms 2396 KB Output is correct
4 Correct 4 ms 2448 KB Output is correct
5 Correct 8 ms 2396 KB Output is correct
6 Correct 9 ms 2392 KB Output is correct
7 Correct 5 ms 2396 KB Output is correct
8 Correct 8 ms 2396 KB Output is correct
9 Correct 6 ms 2396 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2392 KB Output is correct
2 Correct 6 ms 2448 KB Output is correct
3 Correct 2 ms 2396 KB Output is correct
4 Correct 4 ms 2448 KB Output is correct
5 Correct 8 ms 2396 KB Output is correct
6 Correct 9 ms 2392 KB Output is correct
7 Correct 5 ms 2396 KB Output is correct
8 Correct 8 ms 2396 KB Output is correct
9 Correct 6 ms 2396 KB Output is correct
10 Correct 16 ms 3160 KB Output is correct
11 Correct 17 ms 3160 KB Output is correct
12 Correct 22 ms 3164 KB Output is correct
13 Correct 14 ms 3248 KB Output is correct
14 Correct 16 ms 3160 KB Output is correct
15 Correct 22 ms 3252 KB Output is correct
16 Correct 17 ms 3164 KB Output is correct
17 Correct 14 ms 3164 KB Output is correct
18 Correct 15 ms 3244 KB Output is correct
19 Correct 15 ms 3252 KB Output is correct
20 Correct 21 ms 3252 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2392 KB Output is correct
2 Correct 6 ms 2448 KB Output is correct
3 Correct 2 ms 2396 KB Output is correct
4 Correct 4 ms 2448 KB Output is correct
5 Correct 8 ms 2396 KB Output is correct
6 Correct 9 ms 2392 KB Output is correct
7 Correct 5 ms 2396 KB Output is correct
8 Correct 8 ms 2396 KB Output is correct
9 Correct 6 ms 2396 KB Output is correct
10 Correct 16 ms 3160 KB Output is correct
11 Correct 17 ms 3160 KB Output is correct
12 Correct 22 ms 3164 KB Output is correct
13 Correct 14 ms 3248 KB Output is correct
14 Correct 16 ms 3160 KB Output is correct
15 Correct 22 ms 3252 KB Output is correct
16 Correct 17 ms 3164 KB Output is correct
17 Correct 14 ms 3164 KB Output is correct
18 Correct 15 ms 3244 KB Output is correct
19 Correct 15 ms 3252 KB Output is correct
20 Correct 21 ms 3252 KB Output is correct
21 Incorrect 35 ms 3172 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 2392 KB Output is correct
2 Correct 6 ms 2448 KB Output is correct
3 Correct 2 ms 2396 KB Output is correct
4 Correct 4 ms 2448 KB Output is correct
5 Correct 8 ms 2396 KB Output is correct
6 Correct 9 ms 2392 KB Output is correct
7 Correct 5 ms 2396 KB Output is correct
8 Correct 8 ms 2396 KB Output is correct
9 Correct 6 ms 2396 KB Output is correct
10 Correct 16 ms 3160 KB Output is correct
11 Correct 17 ms 3160 KB Output is correct
12 Correct 22 ms 3164 KB Output is correct
13 Correct 14 ms 3248 KB Output is correct
14 Correct 16 ms 3160 KB Output is correct
15 Correct 22 ms 3252 KB Output is correct
16 Correct 17 ms 3164 KB Output is correct
17 Correct 14 ms 3164 KB Output is correct
18 Correct 15 ms 3244 KB Output is correct
19 Correct 15 ms 3252 KB Output is correct
20 Correct 21 ms 3252 KB Output is correct
21 Incorrect 35 ms 3172 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 2392 KB Output is correct
2 Correct 6 ms 2448 KB Output is correct
3 Correct 2 ms 2396 KB Output is correct
4 Correct 4 ms 2448 KB Output is correct
5 Correct 8 ms 2396 KB Output is correct
6 Correct 9 ms 2392 KB Output is correct
7 Correct 5 ms 2396 KB Output is correct
8 Correct 8 ms 2396 KB Output is correct
9 Correct 6 ms 2396 KB Output is correct
10 Correct 16 ms 3160 KB Output is correct
11 Correct 17 ms 3160 KB Output is correct
12 Correct 22 ms 3164 KB Output is correct
13 Correct 14 ms 3248 KB Output is correct
14 Correct 16 ms 3160 KB Output is correct
15 Correct 22 ms 3252 KB Output is correct
16 Correct 17 ms 3164 KB Output is correct
17 Correct 14 ms 3164 KB Output is correct
18 Correct 15 ms 3244 KB Output is correct
19 Correct 15 ms 3252 KB Output is correct
20 Correct 21 ms 3252 KB Output is correct
21 Incorrect 35 ms 3172 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 2392 KB Output is correct
2 Correct 6 ms 2448 KB Output is correct
3 Correct 2 ms 2396 KB Output is correct
4 Correct 4 ms 2448 KB Output is correct
5 Correct 8 ms 2396 KB Output is correct
6 Correct 9 ms 2392 KB Output is correct
7 Correct 5 ms 2396 KB Output is correct
8 Correct 8 ms 2396 KB Output is correct
9 Correct 6 ms 2396 KB Output is correct
10 Correct 16 ms 3160 KB Output is correct
11 Correct 17 ms 3160 KB Output is correct
12 Correct 22 ms 3164 KB Output is correct
13 Correct 14 ms 3248 KB Output is correct
14 Correct 16 ms 3160 KB Output is correct
15 Correct 22 ms 3252 KB Output is correct
16 Correct 17 ms 3164 KB Output is correct
17 Correct 14 ms 3164 KB Output is correct
18 Correct 15 ms 3244 KB Output is correct
19 Correct 15 ms 3252 KB Output is correct
20 Correct 21 ms 3252 KB Output is correct
21 Incorrect 35 ms 3172 KB Output isn't correct
22 Halted 0 ms 0 KB -