oj.uz

Submission #1022391

# Submission time Handle Problem Language Result Execution time Memory
1022391 2024-07-13T12:39:49 Z phoenix Bootfall (IZhO17_bootfall) C++17
44 / 100
 877 ms 3308 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
const int MOD1 = 1e9 + 7;
const int MOD2 = 998244353;
const int MOD3 = 999990011;
const int MOD4 = 1e9 + 9;
 
template<unsigned int MOD> 
struct mint {
    int v;
    mint() {}
    mint(long long val) : v(val - (val >= MOD) * MOD + (val < 0) * MOD) {}
    mint<MOD>& operator += (mint<MOD> other) {
        *this = mint(v + other.v);
        return *this;
    }
    mint<MOD>& operator -= (mint<MOD> other) {
        *this = mint(v - other.v);
        return *this;
    }
};
const int N = 550;
const int A = 250000;
 
mint<MOD1> dp1[A]{1};
mint<MOD2> dp2[A]{1};
// mint<MOD3> dp3[A]{1};
// mint<MOD4> dp4[A]{1};
int sum = 0;
 
void add(int val) {
    sum += val;
    for (int i = A - 1; i >= val; i--) {
        dp1[i] += dp1[i - val];
        dp2[i] += dp2[i - val];
        // dp3[i] += dp3[i - val];
        // dp4[i] += dp4[i - val];
    }   
}
 
bool check(int sum) {
    assert(0 <= sum && sum < A);
    bool flag = true;
    flag &= (dp1[sum].v > 0);
    flag &= (dp2[sum].v > 0);
    // flag &= (dp3[sum].v > 0);
    // flag &= (dp4[sum].v > 0);
    return flag;
}
 
void del(int val) {
    sum -= val;
    for (int i = val; i < A; i++) {
        dp1[i] -= dp1[i - val];
        dp2[i] -= dp2[i - val];
        // dp3[i] -= dp3[i - val];
        // dp4[i] -= dp4[i - val];
    }
}
 
int n;
int a[N];
 
int cnt[A];
 
int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    cin >> n;
    for (int i = 0; i < n; i++)
        cin >> a[i];
    for (int i = 0; i < n; i++) {
        add(a[i]);
    }
    if (sum & 1 || !check(sum / 2)) {
        cout << 0;
        return 0;
    }
 
    for (int i = 0; i < n; i++) {
        if (i) add(a[i - 1]);
        del(a[i]);
        for (int s = 0; s < A; s++) {
            if (check(s)) {
                cnt[abs(2 * s - sum)]++;
            }
        }
    }
    vector<int> res;
    for (int i = 0; i < A; i++) {
        if (cnt[i] == 2 * n) 
            res.push_back(i);
    }
    cout << (int)res.size() << '\n';
    for (int c : res) cout << c << ' ';
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2392 KB Output is correct
2 Correct 9 ms 2396 KB Output is correct
3 Correct 3 ms 2392 KB Output is correct
4 Correct 6 ms 2396 KB Output is correct
5 Correct 16 ms 2424 KB Output is correct
6 Correct 12 ms 2396 KB Output is correct
7 Correct 9 ms 2396 KB Output is correct
8 Correct 17 ms 2420 KB Output is correct
9 Correct 14 ms 2396 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2392 KB Output is correct
2 Correct 9 ms 2396 KB Output is correct
3 Correct 3 ms 2392 KB Output is correct
4 Correct 6 ms 2396 KB Output is correct
5 Correct 16 ms 2424 KB Output is correct
6 Correct 12 ms 2396 KB Output is correct
7 Correct 9 ms 2396 KB Output is correct
8 Correct 17 ms 2420 KB Output is correct
9 Correct 14 ms 2396 KB Output is correct
10 Correct 38 ms 2396 KB Output is correct
11 Correct 43 ms 2392 KB Output is correct
12 Correct 47 ms 2648 KB Output is correct
13 Correct 45 ms 2396 KB Output is correct
14 Correct 39 ms 2396 KB Output is correct
15 Correct 37 ms 2396 KB Output is correct
16 Correct 39 ms 2396 KB Output is correct
17 Correct 25 ms 2396 KB Output is correct
18 Correct 31 ms 2420 KB Output is correct
19 Correct 41 ms 2392 KB Output is correct
20 Correct 41 ms 2392 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2392 KB Output is correct
2 Correct 9 ms 2396 KB Output is correct
3 Correct 3 ms 2392 KB Output is correct
4 Correct 6 ms 2396 KB Output is correct
5 Correct 16 ms 2424 KB Output is correct
6 Correct 12 ms 2396 KB Output is correct
7 Correct 9 ms 2396 KB Output is correct
8 Correct 17 ms 2420 KB Output is correct
9 Correct 14 ms 2396 KB Output is correct
10 Correct 38 ms 2396 KB Output is correct
11 Correct 43 ms 2392 KB Output is correct
12 Correct 47 ms 2648 KB Output is correct
13 Correct 45 ms 2396 KB Output is correct
14 Correct 39 ms 2396 KB Output is correct
15 Correct 37 ms 2396 KB Output is correct
16 Correct 39 ms 2396 KB Output is correct
17 Correct 25 ms 2396 KB Output is correct
18 Correct 31 ms 2420 KB Output is correct
19 Correct 41 ms 2392 KB Output is correct
20 Correct 41 ms 2392 KB Output is correct
21 Correct 83 ms 2420 KB Output is correct
22 Correct 96 ms 2392 KB Output is correct
23 Correct 64 ms 2396 KB Output is correct
24 Correct 118 ms 2396 KB Output is correct
25 Correct 139 ms 2420 KB Output is correct
26 Correct 131 ms 2396 KB Output is correct
27 Correct 123 ms 2396 KB Output is correct
28 Correct 122 ms 2392 KB Output is correct
29 Correct 123 ms 2412 KB Output is correct
30 Correct 130 ms 2396 KB Output is correct
31 Correct 137 ms 2412 KB Output is correct
32 Correct 130 ms 2412 KB Output is correct
33 Correct 129 ms 2648 KB Output is correct
34 Correct 152 ms 2396 KB Output is correct
35 Correct 130 ms 2396 KB Output is correct
36 Correct 133 ms 2392 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2392 KB Output is correct
2 Correct 9 ms 2396 KB Output is correct
3 Correct 3 ms 2392 KB Output is correct
4 Correct 6 ms 2396 KB Output is correct
5 Correct 16 ms 2424 KB Output is correct
6 Correct 12 ms 2396 KB Output is correct
7 Correct 9 ms 2396 KB Output is correct
8 Correct 17 ms 2420 KB Output is correct
9 Correct 14 ms 2396 KB Output is correct
10 Correct 38 ms 2396 KB Output is correct
11 Correct 43 ms 2392 KB Output is correct
12 Correct 47 ms 2648 KB Output is correct
13 Correct 45 ms 2396 KB Output is correct
14 Correct 39 ms 2396 KB Output is correct
15 Correct 37 ms 2396 KB Output is correct
16 Correct 39 ms 2396 KB Output is correct
17 Correct 25 ms 2396 KB Output is correct
18 Correct 31 ms 2420 KB Output is correct
19 Correct 41 ms 2392 KB Output is correct
20 Correct 41 ms 2392 KB Output is correct
21 Correct 83 ms 2420 KB Output is correct
22 Correct 96 ms 2392 KB Output is correct
23 Correct 64 ms 2396 KB Output is correct
24 Correct 118 ms 2396 KB Output is correct
25 Correct 139 ms 2420 KB Output is correct
26 Correct 131 ms 2396 KB Output is correct
27 Correct 123 ms 2396 KB Output is correct
28 Correct 122 ms 2392 KB Output is correct
29 Correct 123 ms 2412 KB Output is correct
30 Correct 130 ms 2396 KB Output is correct
31 Correct 137 ms 2412 KB Output is correct
32 Correct 130 ms 2412 KB Output is correct
33 Correct 129 ms 2648 KB Output is correct
34 Correct 152 ms 2396 KB Output is correct
35 Correct 130 ms 2396 KB Output is correct
36 Correct 133 ms 2392 KB Output is correct
37 Correct 323 ms 2472 KB Output is correct
38 Correct 280 ms 2392 KB Output is correct
39 Correct 307 ms 2644 KB Output is correct
40 Correct 423 ms 2644 KB Output is correct
41 Correct 335 ms 2640 KB Output is correct
42 Correct 397 ms 2640 KB Output is correct
43 Correct 425 ms 2896 KB Output is correct
44 Correct 437 ms 2908 KB Output is correct
45 Correct 488 ms 2896 KB Output is correct
46 Correct 383 ms 2396 KB Output is correct
47 Correct 392 ms 2648 KB Output is correct
48 Correct 440 ms 2900 KB Output is correct
49 Correct 455 ms 2640 KB Output is correct
50 Correct 425 ms 2664 KB Output is correct
51 Correct 115 ms 2396 KB Output is correct
52 Correct 546 ms 2896 KB Output is correct

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2392 KB Output is correct
2 Correct 9 ms 2396 KB Output is correct
3 Correct 3 ms 2392 KB Output is correct
4 Correct 6 ms 2396 KB Output is correct
5 Correct 16 ms 2424 KB Output is correct
6 Correct 12 ms 2396 KB Output is correct
7 Correct 9 ms 2396 KB Output is correct
8 Correct 17 ms 2420 KB Output is correct
9 Correct 14 ms 2396 KB Output is correct
10 Correct 38 ms 2396 KB Output is correct
11 Correct 43 ms 2392 KB Output is correct
12 Correct 47 ms 2648 KB Output is correct
13 Correct 45 ms 2396 KB Output is correct
14 Correct 39 ms 2396 KB Output is correct
15 Correct 37 ms 2396 KB Output is correct
16 Correct 39 ms 2396 KB Output is correct
17 Correct 25 ms 2396 KB Output is correct
18 Correct 31 ms 2420 KB Output is correct
19 Correct 41 ms 2392 KB Output is correct
20 Correct 41 ms 2392 KB Output is correct
21 Correct 83 ms 2420 KB Output is correct
22 Correct 96 ms 2392 KB Output is correct
23 Correct 64 ms 2396 KB Output is correct
24 Correct 118 ms 2396 KB Output is correct
25 Correct 139 ms 2420 KB Output is correct
26 Correct 131 ms 2396 KB Output is correct
27 Correct 123 ms 2396 KB Output is correct
28 Correct 122 ms 2392 KB Output is correct
29 Correct 123 ms 2412 KB Output is correct
30 Correct 130 ms 2396 KB Output is correct
31 Correct 137 ms 2412 KB Output is correct
32 Correct 130 ms 2412 KB Output is correct
33 Correct 129 ms 2648 KB Output is correct
34 Correct 152 ms 2396 KB Output is correct
35 Correct 130 ms 2396 KB Output is correct
36 Correct 133 ms 2392 KB Output is correct
37 Correct 323 ms 2472 KB Output is correct
38 Correct 280 ms 2392 KB Output is correct
39 Correct 307 ms 2644 KB Output is correct
40 Correct 423 ms 2644 KB Output is correct
41 Correct 335 ms 2640 KB Output is correct
42 Correct 397 ms 2640 KB Output is correct
43 Correct 425 ms 2896 KB Output is correct
44 Correct 437 ms 2908 KB Output is correct
45 Correct 488 ms 2896 KB Output is correct
46 Correct 383 ms 2396 KB Output is correct
47 Correct 392 ms 2648 KB Output is correct
48 Correct 440 ms 2900 KB Output is correct
49 Correct 455 ms 2640 KB Output is correct
50 Correct 425 ms 2664 KB Output is correct
51 Correct 115 ms 2396 KB Output is correct
52 Correct 546 ms 2896 KB Output is correct
53 Correct 533 ms 2836 KB Output is correct
54 Correct 640 ms 2908 KB Output is correct
55 Correct 866 ms 3308 KB Output is correct
56 Correct 568 ms 2872 KB Output is correct
57 Correct 877 ms 3296 KB Output is correct
58 Incorrect 746 ms 2896 KB Output isn't correct
59 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2392 KB Output is correct
2 Correct 9 ms 2396 KB Output is correct
3 Correct 3 ms 2392 KB Output is correct
4 Correct 6 ms 2396 KB Output is correct
5 Correct 16 ms 2424 KB Output is correct
6 Correct 12 ms 2396 KB Output is correct
7 Correct 9 ms 2396 KB Output is correct
8 Correct 17 ms 2420 KB Output is correct
9 Correct 14 ms 2396 KB Output is correct
10 Correct 38 ms 2396 KB Output is correct
11 Correct 43 ms 2392 KB Output is correct
12 Correct 47 ms 2648 KB Output is correct
13 Correct 45 ms 2396 KB Output is correct
14 Correct 39 ms 2396 KB Output is correct
15 Correct 37 ms 2396 KB Output is correct
16 Correct 39 ms 2396 KB Output is correct
17 Correct 25 ms 2396 KB Output is correct
18 Correct 31 ms 2420 KB Output is correct
19 Correct 41 ms 2392 KB Output is correct
20 Correct 41 ms 2392 KB Output is correct
21 Correct 83 ms 2420 KB Output is correct
22 Correct 96 ms 2392 KB Output is correct
23 Correct 64 ms 2396 KB Output is correct
24 Correct 118 ms 2396 KB Output is correct
25 Correct 139 ms 2420 KB Output is correct
26 Correct 131 ms 2396 KB Output is correct
27 Correct 123 ms 2396 KB Output is correct
28 Correct 122 ms 2392 KB Output is correct
29 Correct 123 ms 2412 KB Output is correct
30 Correct 130 ms 2396 KB Output is correct
31 Correct 137 ms 2412 KB Output is correct
32 Correct 130 ms 2412 KB Output is correct
33 Correct 129 ms 2648 KB Output is correct
34 Correct 152 ms 2396 KB Output is correct
35 Correct 130 ms 2396 KB Output is correct
36 Correct 133 ms 2392 KB Output is correct
37 Correct 323 ms 2472 KB Output is correct
38 Correct 280 ms 2392 KB Output is correct
39 Correct 307 ms 2644 KB Output is correct
40 Correct 423 ms 2644 KB Output is correct
41 Correct 335 ms 2640 KB Output is correct
42 Correct 397 ms 2640 KB Output is correct
43 Correct 425 ms 2896 KB Output is correct
44 Correct 437 ms 2908 KB Output is correct
45 Correct 488 ms 2896 KB Output is correct
46 Correct 383 ms 2396 KB Output is correct
47 Correct 392 ms 2648 KB Output is correct
48 Correct 440 ms 2900 KB Output is correct
49 Correct 455 ms 2640 KB Output is correct
50 Correct 425 ms 2664 KB Output is correct
51 Correct 115 ms 2396 KB Output is correct
52 Correct 546 ms 2896 KB Output is correct
53 Correct 533 ms 2836 KB Output is correct
54 Correct 640 ms 2908 KB Output is correct
55 Correct 866 ms 3308 KB Output is correct
56 Correct 568 ms 2872 KB Output is correct
57 Correct 877 ms 3296 KB Output is correct
58 Incorrect 746 ms 2896 KB Output isn't correct
59 Halted 0 ms 0 KB -