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Submission #444348

# Submission time Handle Problem Language Result Execution time Memory
444348 2021-07-13T17:46:10 Z KiriLL1ca Bootfall (IZhO17_bootfall) C++17
13 / 100
 62 ms 2296 KB 
#include <bits/stdc++.h>

using namespace std;

/* 
written on phone :)))))
*/

const int N = 505;

long long dp[N*N];
int ans[N*N];

void add (int x) {
    for (int i = N*N-x-1; i >= 0; i--) {
        dp[i+x] += dp[i];
    }
}

void del (int x) {
    for (int i = x; i < N*N; i++) {
        dp[i] -= dp[i-x];
    }
}

int main ()
{
    dp[0] = 1;
    int n; cin >> n;
    vector <int> a (n);
    int sum = 0;
    for (int i = 0; i < n; i++) {
        cin >> a[i];
        sum += a[i];
        add(a[i]);
    }
    if (sum & 1) {
        cout << 0; return 0;
    }
    if (!dp[sum >> 1]) {
        cout << 0; return 0;
    }
    int cnt = 0;
    for (int i = 0; i < n; i++) {
        del(a[i]); sum-=a[i];
        for (int j = 1; j < N*N; j++) {
            int need = ((sum+j)>>1)-j;
            if (need >= 0 && dp[need] > 0 && (sum+j) % 2 == 0) {
                ans[j]++;
            }
        }
        add(a[i]); sum+=a[i];
    }
    for (int i = 1; i < N*N;i++) {
        if (ans[i] == n) 
            cnt++;
    }
    cout << cnt << endl;
    for (int i = 1; i < N*N;i++) {
        if (ans[i] == n) 
            cout << i << " ";
    }
    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2252 KB Output is correct
2 Correct 7 ms 2252 KB Output is correct
3 Correct 2 ms 2252 KB Output is correct
4 Correct 5 ms 2252 KB Output is correct
5 Correct 12 ms 2296 KB Output is correct
6 Correct 8 ms 2252 KB Output is correct
7 Correct 8 ms 2288 KB Output is correct
8 Correct 12 ms 2252 KB Output is correct
9 Correct 11 ms 2292 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2252 KB Output is correct
2 Correct 7 ms 2252 KB Output is correct
3 Correct 2 ms 2252 KB Output is correct
4 Correct 5 ms 2252 KB Output is correct
5 Correct 12 ms 2296 KB Output is correct
6 Correct 8 ms 2252 KB Output is correct
7 Correct 8 ms 2288 KB Output is correct
8 Correct 12 ms 2252 KB Output is correct
9 Correct 11 ms 2292 KB Output is correct
10 Correct 26 ms 2252 KB Output is correct
11 Correct 29 ms 2252 KB Output is correct
12 Correct 29 ms 2252 KB Output is correct
13 Correct 26 ms 2292 KB Output is correct
14 Correct 25 ms 2292 KB Output is correct
15 Correct 27 ms 2292 KB Output is correct
16 Correct 32 ms 2284 KB Output is correct
17 Correct 17 ms 2296 KB Output is correct
18 Correct 22 ms 2292 KB Output is correct
19 Correct 27 ms 2288 KB Output is correct
20 Correct 28 ms 2288 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2252 KB Output is correct
2 Correct 7 ms 2252 KB Output is correct
3 Correct 2 ms 2252 KB Output is correct
4 Correct 5 ms 2252 KB Output is correct
5 Correct 12 ms 2296 KB Output is correct
6 Correct 8 ms 2252 KB Output is correct
7 Correct 8 ms 2288 KB Output is correct
8 Correct 12 ms 2252 KB Output is correct
9 Correct 11 ms 2292 KB Output is correct
10 Correct 26 ms 2252 KB Output is correct
11 Correct 29 ms 2252 KB Output is correct
12 Correct 29 ms 2252 KB Output is correct
13 Correct 26 ms 2292 KB Output is correct
14 Correct 25 ms 2292 KB Output is correct
15 Correct 27 ms 2292 KB Output is correct
16 Correct 32 ms 2284 KB Output is correct
17 Correct 17 ms 2296 KB Output is correct
18 Correct 22 ms 2292 KB Output is correct
19 Correct 27 ms 2288 KB Output is correct
20 Correct 28 ms 2288 KB Output is correct
21 Correct 57 ms 2288 KB Output is correct
22 Incorrect 62 ms 2252 KB Output isn't correct
23 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2252 KB Output is correct
2 Correct 7 ms 2252 KB Output is correct
3 Correct 2 ms 2252 KB Output is correct
4 Correct 5 ms 2252 KB Output is correct
5 Correct 12 ms 2296 KB Output is correct
6 Correct 8 ms 2252 KB Output is correct
7 Correct 8 ms 2288 KB Output is correct
8 Correct 12 ms 2252 KB Output is correct
9 Correct 11 ms 2292 KB Output is correct
10 Correct 26 ms 2252 KB Output is correct
11 Correct 29 ms 2252 KB Output is correct
12 Correct 29 ms 2252 KB Output is correct
13 Correct 26 ms 2292 KB Output is correct
14 Correct 25 ms 2292 KB Output is correct
15 Correct 27 ms 2292 KB Output is correct
16 Correct 32 ms 2284 KB Output is correct
17 Correct 17 ms 2296 KB Output is correct
18 Correct 22 ms 2292 KB Output is correct
19 Correct 27 ms 2288 KB Output is correct
20 Correct 28 ms 2288 KB Output is correct
21 Correct 57 ms 2288 KB Output is correct
22 Incorrect 62 ms 2252 KB Output isn't correct
23 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2252 KB Output is correct
2 Correct 7 ms 2252 KB Output is correct
3 Correct 2 ms 2252 KB Output is correct
4 Correct 5 ms 2252 KB Output is correct
5 Correct 12 ms 2296 KB Output is correct
6 Correct 8 ms 2252 KB Output is correct
7 Correct 8 ms 2288 KB Output is correct
8 Correct 12 ms 2252 KB Output is correct
9 Correct 11 ms 2292 KB Output is correct
10 Correct 26 ms 2252 KB Output is correct
11 Correct 29 ms 2252 KB Output is correct
12 Correct 29 ms 2252 KB Output is correct
13 Correct 26 ms 2292 KB Output is correct
14 Correct 25 ms 2292 KB Output is correct
15 Correct 27 ms 2292 KB Output is correct
16 Correct 32 ms 2284 KB Output is correct
17 Correct 17 ms 2296 KB Output is correct
18 Correct 22 ms 2292 KB Output is correct
19 Correct 27 ms 2288 KB Output is correct
20 Correct 28 ms 2288 KB Output is correct
21 Correct 57 ms 2288 KB Output is correct
22 Incorrect 62 ms 2252 KB Output isn't correct
23 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2252 KB Output is correct
2 Correct 7 ms 2252 KB Output is correct
3 Correct 2 ms 2252 KB Output is correct
4 Correct 5 ms 2252 KB Output is correct
5 Correct 12 ms 2296 KB Output is correct
6 Correct 8 ms 2252 KB Output is correct
7 Correct 8 ms 2288 KB Output is correct
8 Correct 12 ms 2252 KB Output is correct
9 Correct 11 ms 2292 KB Output is correct
10 Correct 26 ms 2252 KB Output is correct
11 Correct 29 ms 2252 KB Output is correct
12 Correct 29 ms 2252 KB Output is correct
13 Correct 26 ms 2292 KB Output is correct
14 Correct 25 ms 2292 KB Output is correct
15 Correct 27 ms 2292 KB Output is correct
16 Correct 32 ms 2284 KB Output is correct
17 Correct 17 ms 2296 KB Output is correct
18 Correct 22 ms 2292 KB Output is correct
19 Correct 27 ms 2288 KB Output is correct
20 Correct 28 ms 2288 KB Output is correct
21 Correct 57 ms 2288 KB Output is correct
22 Incorrect 62 ms 2252 KB Output isn't correct
23 Halted 0 ms 0 KB -