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Submission #1022389

# Submission time Handle Problem Language Result Execution time Memory
1022389 2024-07-13T12:39:00 Z phoenix Bootfall (IZhO17_bootfall) C++17
44 / 100
 1000 ms 3924 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 9 ms 3160 KB Output is correct
2 Correct 12 ms 3392 KB Output is correct
3 Correct 3 ms 3164 KB Output is correct
4 Correct 8 ms 3164 KB Output is correct
5 Correct 27 ms 3400 KB Output is correct
6 Correct 15 ms 3164 KB Output is correct
7 Correct 12 ms 3164 KB Output is correct
8 Correct 21 ms 3164 KB Output is correct
9 Correct 19 ms 3160 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 3160 KB Output is correct
2 Correct 12 ms 3392 KB Output is correct
3 Correct 3 ms 3164 KB Output is correct
4 Correct 8 ms 3164 KB Output is correct
5 Correct 27 ms 3400 KB Output is correct
6 Correct 15 ms 3164 KB Output is correct
7 Correct 12 ms 3164 KB Output is correct
8 Correct 21 ms 3164 KB Output is correct
9 Correct 19 ms 3160 KB Output is correct
10 Correct 51 ms 3160 KB Output is correct
11 Correct 52 ms 3164 KB Output is correct
12 Correct 60 ms 3160 KB Output is correct
13 Correct 49 ms 3164 KB Output is correct
14 Correct 49 ms 3160 KB Output is correct
15 Correct 49 ms 3164 KB Output is correct
16 Correct 53 ms 3160 KB Output is correct
17 Correct 35 ms 3164 KB Output is correct
18 Correct 44 ms 3164 KB Output is correct
19 Correct 47 ms 3164 KB Output is correct
20 Correct 52 ms 3164 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 3160 KB Output is correct
2 Correct 12 ms 3392 KB Output is correct
3 Correct 3 ms 3164 KB Output is correct
4 Correct 8 ms 3164 KB Output is correct
5 Correct 27 ms 3400 KB Output is correct
6 Correct 15 ms 3164 KB Output is correct
7 Correct 12 ms 3164 KB Output is correct
8 Correct 21 ms 3164 KB Output is correct
9 Correct 19 ms 3160 KB Output is correct
10 Correct 51 ms 3160 KB Output is correct
11 Correct 52 ms 3164 KB Output is correct
12 Correct 60 ms 3160 KB Output is correct
13 Correct 49 ms 3164 KB Output is correct
14 Correct 49 ms 3160 KB Output is correct
15 Correct 49 ms 3164 KB Output is correct
16 Correct 53 ms 3160 KB Output is correct
17 Correct 35 ms 3164 KB Output is correct
18 Correct 44 ms 3164 KB Output is correct
19 Correct 47 ms 3164 KB Output is correct
20 Correct 52 ms 3164 KB Output is correct
21 Correct 112 ms 3164 KB Output is correct
22 Correct 130 ms 3384 KB Output is correct
23 Correct 85 ms 3396 KB Output is correct
24 Correct 166 ms 3408 KB Output is correct
25 Correct 163 ms 3388 KB Output is correct
26 Correct 191 ms 3384 KB Output is correct
27 Correct 170 ms 3372 KB Output is correct
28 Correct 177 ms 3372 KB Output is correct
29 Correct 175 ms 3408 KB Output is correct
30 Correct 184 ms 3164 KB Output is correct
31 Correct 176 ms 3412 KB Output is correct
32 Correct 181 ms 3408 KB Output is correct
33 Correct 175 ms 3416 KB Output is correct
34 Correct 166 ms 3408 KB Output is correct
35 Correct 173 ms 3376 KB Output is correct
36 Correct 185 ms 3372 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 3160 KB Output is correct
2 Correct 12 ms 3392 KB Output is correct
3 Correct 3 ms 3164 KB Output is correct
4 Correct 8 ms 3164 KB Output is correct
5 Correct 27 ms 3400 KB Output is correct
6 Correct 15 ms 3164 KB Output is correct
7 Correct 12 ms 3164 KB Output is correct
8 Correct 21 ms 3164 KB Output is correct
9 Correct 19 ms 3160 KB Output is correct
10 Correct 51 ms 3160 KB Output is correct
11 Correct 52 ms 3164 KB Output is correct
12 Correct 60 ms 3160 KB Output is correct
13 Correct 49 ms 3164 KB Output is correct
14 Correct 49 ms 3160 KB Output is correct
15 Correct 49 ms 3164 KB Output is correct
16 Correct 53 ms 3160 KB Output is correct
17 Correct 35 ms 3164 KB Output is correct
18 Correct 44 ms 3164 KB Output is correct
19 Correct 47 ms 3164 KB Output is correct
20 Correct 52 ms 3164 KB Output is correct
21 Correct 112 ms 3164 KB Output is correct
22 Correct 130 ms 3384 KB Output is correct
23 Correct 85 ms 3396 KB Output is correct
24 Correct 166 ms 3408 KB Output is correct
25 Correct 163 ms 3388 KB Output is correct
26 Correct 191 ms 3384 KB Output is correct
27 Correct 170 ms 3372 KB Output is correct
28 Correct 177 ms 3372 KB Output is correct
29 Correct 175 ms 3408 KB Output is correct
30 Correct 184 ms 3164 KB Output is correct
31 Correct 176 ms 3412 KB Output is correct
32 Correct 181 ms 3408 KB Output is correct
33 Correct 175 ms 3416 KB Output is correct
34 Correct 166 ms 3408 KB Output is correct
35 Correct 173 ms 3376 KB Output is correct
36 Correct 185 ms 3372 KB Output is correct
37 Correct 393 ms 3408 KB Output is correct
38 Correct 401 ms 3408 KB Output is correct
39 Correct 411 ms 3412 KB Output is correct
40 Correct 600 ms 3632 KB Output is correct
41 Correct 461 ms 3664 KB Output is correct
42 Correct 562 ms 3668 KB Output is correct
43 Correct 610 ms 3924 KB Output is correct
44 Correct 638 ms 3924 KB Output is correct
45 Correct 640 ms 3848 KB Output is correct
46 Correct 569 ms 3416 KB Output is correct
47 Correct 560 ms 3664 KB Output is correct
48 Correct 619 ms 3924 KB Output is correct
49 Correct 550 ms 3628 KB Output is correct
50 Correct 551 ms 3672 KB Output is correct
51 Correct 169 ms 3160 KB Output is correct
52 Correct 731 ms 3884 KB Output is correct

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 3160 KB Output is correct
2 Correct 12 ms 3392 KB Output is correct
3 Correct 3 ms 3164 KB Output is correct
4 Correct 8 ms 3164 KB Output is correct
5 Correct 27 ms 3400 KB Output is correct
6 Correct 15 ms 3164 KB Output is correct
7 Correct 12 ms 3164 KB Output is correct
8 Correct 21 ms 3164 KB Output is correct
9 Correct 19 ms 3160 KB Output is correct
10 Correct 51 ms 3160 KB Output is correct
11 Correct 52 ms 3164 KB Output is correct
12 Correct 60 ms 3160 KB Output is correct
13 Correct 49 ms 3164 KB Output is correct
14 Correct 49 ms 3160 KB Output is correct
15 Correct 49 ms 3164 KB Output is correct
16 Correct 53 ms 3160 KB Output is correct
17 Correct 35 ms 3164 KB Output is correct
18 Correct 44 ms 3164 KB Output is correct
19 Correct 47 ms 3164 KB Output is correct
20 Correct 52 ms 3164 KB Output is correct
21 Correct 112 ms 3164 KB Output is correct
22 Correct 130 ms 3384 KB Output is correct
23 Correct 85 ms 3396 KB Output is correct
24 Correct 166 ms 3408 KB Output is correct
25 Correct 163 ms 3388 KB Output is correct
26 Correct 191 ms 3384 KB Output is correct
27 Correct 170 ms 3372 KB Output is correct
28 Correct 177 ms 3372 KB Output is correct
29 Correct 175 ms 3408 KB Output is correct
30 Correct 184 ms 3164 KB Output is correct
31 Correct 176 ms 3412 KB Output is correct
32 Correct 181 ms 3408 KB Output is correct
33 Correct 175 ms 3416 KB Output is correct
34 Correct 166 ms 3408 KB Output is correct
35 Correct 173 ms 3376 KB Output is correct
36 Correct 185 ms 3372 KB Output is correct
37 Correct 393 ms 3408 KB Output is correct
38 Correct 401 ms 3408 KB Output is correct
39 Correct 411 ms 3412 KB Output is correct
40 Correct 600 ms 3632 KB Output is correct
41 Correct 461 ms 3664 KB Output is correct
42 Correct 562 ms 3668 KB Output is correct
43 Correct 610 ms 3924 KB Output is correct
44 Correct 638 ms 3924 KB Output is correct
45 Correct 640 ms 3848 KB Output is correct
46 Correct 569 ms 3416 KB Output is correct
47 Correct 560 ms 3664 KB Output is correct
48 Correct 619 ms 3924 KB Output is correct
49 Correct 550 ms 3628 KB Output is correct
50 Correct 551 ms 3672 KB Output is correct
51 Correct 169 ms 3160 KB Output is correct
52 Correct 731 ms 3884 KB Output is correct
53 Correct 778 ms 3664 KB Output is correct
54 Correct 961 ms 3892 KB Output is correct
55 Execution timed out 1062 ms 3648 KB Time limit exceeded
56 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 3160 KB Output is correct
2 Correct 12 ms 3392 KB Output is correct
3 Correct 3 ms 3164 KB Output is correct
4 Correct 8 ms 3164 KB Output is correct
5 Correct 27 ms 3400 KB Output is correct
6 Correct 15 ms 3164 KB Output is correct
7 Correct 12 ms 3164 KB Output is correct
8 Correct 21 ms 3164 KB Output is correct
9 Correct 19 ms 3160 KB Output is correct
10 Correct 51 ms 3160 KB Output is correct
11 Correct 52 ms 3164 KB Output is correct
12 Correct 60 ms 3160 KB Output is correct
13 Correct 49 ms 3164 KB Output is correct
14 Correct 49 ms 3160 KB Output is correct
15 Correct 49 ms 3164 KB Output is correct
16 Correct 53 ms 3160 KB Output is correct
17 Correct 35 ms 3164 KB Output is correct
18 Correct 44 ms 3164 KB Output is correct
19 Correct 47 ms 3164 KB Output is correct
20 Correct 52 ms 3164 KB Output is correct
21 Correct 112 ms 3164 KB Output is correct
22 Correct 130 ms 3384 KB Output is correct
23 Correct 85 ms 3396 KB Output is correct
24 Correct 166 ms 3408 KB Output is correct
25 Correct 163 ms 3388 KB Output is correct
26 Correct 191 ms 3384 KB Output is correct
27 Correct 170 ms 3372 KB Output is correct
28 Correct 177 ms 3372 KB Output is correct
29 Correct 175 ms 3408 KB Output is correct
30 Correct 184 ms 3164 KB Output is correct
31 Correct 176 ms 3412 KB Output is correct
32 Correct 181 ms 3408 KB Output is correct
33 Correct 175 ms 3416 KB Output is correct
34 Correct 166 ms 3408 KB Output is correct
35 Correct 173 ms 3376 KB Output is correct
36 Correct 185 ms 3372 KB Output is correct
37 Correct 393 ms 3408 KB Output is correct
38 Correct 401 ms 3408 KB Output is correct
39 Correct 411 ms 3412 KB Output is correct
40 Correct 600 ms 3632 KB Output is correct
41 Correct 461 ms 3664 KB Output is correct
42 Correct 562 ms 3668 KB Output is correct
43 Correct 610 ms 3924 KB Output is correct
44 Correct 638 ms 3924 KB Output is correct
45 Correct 640 ms 3848 KB Output is correct
46 Correct 569 ms 3416 KB Output is correct
47 Correct 560 ms 3664 KB Output is correct
48 Correct 619 ms 3924 KB Output is correct
49 Correct 550 ms 3628 KB Output is correct
50 Correct 551 ms 3672 KB Output is correct
51 Correct 169 ms 3160 KB Output is correct
52 Correct 731 ms 3884 KB Output is correct
53 Correct 778 ms 3664 KB Output is correct
54 Correct 961 ms 3892 KB Output is correct
55 Execution timed out 1062 ms 3648 KB Time limit exceeded
56 Halted 0 ms 0 KB -