oj.uz

Submission #331700

# Submission time Handle Problem Language Result Execution time Memory
331700 2020-11-29T15:54:16 Z vitkishloh228 Bootfall (IZhO17_bootfall) C++14
100 / 100
 285 ms 3172 KB 
#include<iostream>
#include<vector>
#include<algorithm>
#include<bitset>
using namespace std;
const int maxc = 500 * 500 + 10;
int S;
bitset<maxc> ans, q;
vector<int> a;
void solve(int l,int r,bitset<maxc> b) {
    if (l == r) {
        q.reset();
        for (int j = 0; j < maxc; ++j) {
            int needsum = (S - 2 * j - a[l]);
            if (needsum < 0) continue;
            if (b[j]) {
                q[needsum] = 1;
            }
        }
        ans &= q;
        return;
    }
    int m = (l + r) >> 1;
    bitset<maxc> l1, r1;
    l1 = b;
    r1 = b;
    for (int i = l; i <= m; ++i) {
        l1 |= l1 << a[i];
    }
    for (int i = m + 1; i <= r; ++i) {
        r1 |= r1 << a[i];
    }
    solve(l, m, r1);
    solve(m + 1, r, l1);
}
int main() {
    int n;
    cin >> n;
    a.resize(n);
    for (int i = 0; i < n; ++i) {
        cin >> a[i];
        S += a[i];
    }
    for (int i = 0; i < maxc; ++i) ans[i] = 1;
    bitset<maxc> cur;
    cur[0] = 1;
    solve(0, n - 1, cur);
    for (int i = 0; i < n; ++i) {
        cur |= cur << a[i];
    }
    if (S % 2 || !cur[S / 2]) {
        cout << 0;
        return 0;
    }
    vector<int> answer;
    for (int i = 1; i < maxc; ++i) {
        if (ans[i]) answer.push_back(i);
    }
    cout << answer.size() << '\n';
    for (auto elem : answer) cout << elem << ' ';
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 748 KB Output is correct
2 Correct 4 ms 1004 KB Output is correct
3 Correct 3 ms 748 KB Output is correct
4 Correct 5 ms 748 KB Output is correct
5 Correct 6 ms 1132 KB Output is correct
6 Correct 5 ms 1004 KB Output is correct
7 Correct 4 ms 1004 KB Output is correct
8 Correct 8 ms 1152 KB Output is correct
9 Correct 7 ms 1132 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 748 KB Output is correct
2 Correct 4 ms 1004 KB Output is correct
3 Correct 3 ms 748 KB Output is correct
4 Correct 5 ms 748 KB Output is correct
5 Correct 6 ms 1132 KB Output is correct
6 Correct 5 ms 1004 KB Output is correct
7 Correct 4 ms 1004 KB Output is correct
8 Correct 8 ms 1152 KB Output is correct
9 Correct 7 ms 1132 KB Output is correct
10 Correct 12 ms 1260 KB Output is correct
11 Correct 12 ms 1260 KB Output is correct
12 Correct 15 ms 1260 KB Output is correct
13 Correct 10 ms 1260 KB Output is correct
14 Correct 11 ms 1260 KB Output is correct
15 Correct 11 ms 1408 KB Output is correct
16 Correct 12 ms 1260 KB Output is correct
17 Correct 8 ms 1260 KB Output is correct
18 Correct 10 ms 1260 KB Output is correct
19 Correct 10 ms 1260 KB Output is correct
20 Correct 12 ms 1260 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 748 KB Output is correct
2 Correct 4 ms 1004 KB Output is correct
3 Correct 3 ms 748 KB Output is correct
4 Correct 5 ms 748 KB Output is correct
5 Correct 6 ms 1132 KB Output is correct
6 Correct 5 ms 1004 KB Output is correct
7 Correct 4 ms 1004 KB Output is correct
8 Correct 8 ms 1152 KB Output is correct
9 Correct 7 ms 1132 KB Output is correct
10 Correct 12 ms 1260 KB Output is correct
11 Correct 12 ms 1260 KB Output is correct
12 Correct 15 ms 1260 KB Output is correct
13 Correct 10 ms 1260 KB Output is correct
14 Correct 11 ms 1260 KB Output is correct
15 Correct 11 ms 1408 KB Output is correct
16 Correct 12 ms 1260 KB Output is correct
17 Correct 8 ms 1260 KB Output is correct
18 Correct 10 ms 1260 KB Output is correct
19 Correct 10 ms 1260 KB Output is correct
20 Correct 12 ms 1260 KB Output is correct
21 Correct 25 ms 1388 KB Output is correct
22 Correct 34 ms 1644 KB Output is correct
23 Correct 18 ms 1388 KB Output is correct
24 Correct 33 ms 1644 KB Output is correct
25 Correct 34 ms 1644 KB Output is correct
26 Correct 43 ms 1644 KB Output is correct
27 Correct 35 ms 1644 KB Output is correct
28 Correct 40 ms 1644 KB Output is correct
29 Correct 36 ms 1516 KB Output is correct
30 Correct 35 ms 1516 KB Output is correct
31 Correct 36 ms 1644 KB Output is correct
32 Correct 35 ms 1644 KB Output is correct
33 Correct 35 ms 1516 KB Output is correct
34 Correct 35 ms 1516 KB Output is correct
35 Correct 35 ms 1516 KB Output is correct
36 Correct 36 ms 1644 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 748 KB Output is correct
2 Correct 4 ms 1004 KB Output is correct
3 Correct 3 ms 748 KB Output is correct
4 Correct 5 ms 748 KB Output is correct
5 Correct 6 ms 1132 KB Output is correct
6 Correct 5 ms 1004 KB Output is correct
7 Correct 4 ms 1004 KB Output is correct
8 Correct 8 ms 1152 KB Output is correct
9 Correct 7 ms 1132 KB Output is correct
10 Correct 12 ms 1260 KB Output is correct
11 Correct 12 ms 1260 KB Output is correct
12 Correct 15 ms 1260 KB Output is correct
13 Correct 10 ms 1260 KB Output is correct
14 Correct 11 ms 1260 KB Output is correct
15 Correct 11 ms 1408 KB Output is correct
16 Correct 12 ms 1260 KB Output is correct
17 Correct 8 ms 1260 KB Output is correct
18 Correct 10 ms 1260 KB Output is correct
19 Correct 10 ms 1260 KB Output is correct
20 Correct 12 ms 1260 KB Output is correct
21 Correct 25 ms 1388 KB Output is correct
22 Correct 34 ms 1644 KB Output is correct
23 Correct 18 ms 1388 KB Output is correct
24 Correct 33 ms 1644 KB Output is correct
25 Correct 34 ms 1644 KB Output is correct
26 Correct 43 ms 1644 KB Output is correct
27 Correct 35 ms 1644 KB Output is correct
28 Correct 40 ms 1644 KB Output is correct
29 Correct 36 ms 1516 KB Output is correct
30 Correct 35 ms 1516 KB Output is correct
31 Correct 36 ms 1644 KB Output is correct
32 Correct 35 ms 1644 KB Output is correct
33 Correct 35 ms 1516 KB Output is correct
34 Correct 35 ms 1516 KB Output is correct
35 Correct 35 ms 1516 KB Output is correct
36 Correct 36 ms 1644 KB Output is correct
37 Correct 78 ms 1900 KB Output is correct
38 Correct 75 ms 1900 KB Output is correct
39 Correct 89 ms 1772 KB Output is correct
40 Correct 109 ms 2156 KB Output is correct
41 Correct 97 ms 1948 KB Output is correct
42 Correct 94 ms 1900 KB Output is correct
43 Correct 99 ms 2156 KB Output is correct
44 Correct 104 ms 2156 KB Output is correct
45 Correct 101 ms 2156 KB Output is correct
46 Correct 96 ms 2028 KB Output is correct
47 Correct 122 ms 2028 KB Output is correct
48 Correct 119 ms 2028 KB Output is correct
49 Correct 92 ms 1900 KB Output is correct
50 Correct 94 ms 1900 KB Output is correct
51 Correct 91 ms 1772 KB Output is correct
52 Correct 110 ms 2284 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 748 KB Output is correct
2 Correct 4 ms 1004 KB Output is correct
3 Correct 3 ms 748 KB Output is correct
4 Correct 5 ms 748 KB Output is correct
5 Correct 6 ms 1132 KB Output is correct
6 Correct 5 ms 1004 KB Output is correct
7 Correct 4 ms 1004 KB Output is correct
8 Correct 8 ms 1152 KB Output is correct
9 Correct 7 ms 1132 KB Output is correct
10 Correct 12 ms 1260 KB Output is correct
11 Correct 12 ms 1260 KB Output is correct
12 Correct 15 ms 1260 KB Output is correct
13 Correct 10 ms 1260 KB Output is correct
14 Correct 11 ms 1260 KB Output is correct
15 Correct 11 ms 1408 KB Output is correct
16 Correct 12 ms 1260 KB Output is correct
17 Correct 8 ms 1260 KB Output is correct
18 Correct 10 ms 1260 KB Output is correct
19 Correct 10 ms 1260 KB Output is correct
20 Correct 12 ms 1260 KB Output is correct
21 Correct 25 ms 1388 KB Output is correct
22 Correct 34 ms 1644 KB Output is correct
23 Correct 18 ms 1388 KB Output is correct
24 Correct 33 ms 1644 KB Output is correct
25 Correct 34 ms 1644 KB Output is correct
26 Correct 43 ms 1644 KB Output is correct
27 Correct 35 ms 1644 KB Output is correct
28 Correct 40 ms 1644 KB Output is correct
29 Correct 36 ms 1516 KB Output is correct
30 Correct 35 ms 1516 KB Output is correct
31 Correct 36 ms 1644 KB Output is correct
32 Correct 35 ms 1644 KB Output is correct
33 Correct 35 ms 1516 KB Output is correct
34 Correct 35 ms 1516 KB Output is correct
35 Correct 35 ms 1516 KB Output is correct
36 Correct 36 ms 1644 KB Output is correct
37 Correct 78 ms 1900 KB Output is correct
38 Correct 75 ms 1900 KB Output is correct
39 Correct 89 ms 1772 KB Output is correct
40 Correct 109 ms 2156 KB Output is correct
41 Correct 97 ms 1948 KB Output is correct
42 Correct 94 ms 1900 KB Output is correct
43 Correct 99 ms 2156 KB Output is correct
44 Correct 104 ms 2156 KB Output is correct
45 Correct 101 ms 2156 KB Output is correct
46 Correct 96 ms 2028 KB Output is correct
47 Correct 122 ms 2028 KB Output is correct
48 Correct 119 ms 2028 KB Output is correct
49 Correct 92 ms 1900 KB Output is correct
50 Correct 94 ms 1900 KB Output is correct
51 Correct 91 ms 1772 KB Output is correct
52 Correct 110 ms 2284 KB Output is correct
53 Correct 132 ms 2308 KB Output is correct
54 Correct 142 ms 2284 KB Output is correct
55 Correct 169 ms 2516 KB Output is correct
56 Correct 123 ms 2284 KB Output is correct
57 Correct 158 ms 2536 KB Output is correct
58 Correct 143 ms 2264 KB Output is correct
59 Correct 149 ms 2408 KB Output is correct
60 Correct 140 ms 1900 KB Output is correct
61 Correct 149 ms 2408 KB Output is correct
62 Correct 139 ms 2408 KB Output is correct
63 Correct 141 ms 2536 KB Output is correct
64 Correct 141 ms 2536 KB Output is correct
65 Correct 117 ms 1900 KB Output is correct
66 Correct 110 ms 2008 KB Output is correct

Subtask #6
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 748 KB Output is correct
2 Correct 4 ms 1004 KB Output is correct
3 Correct 3 ms 748 KB Output is correct
4 Correct 5 ms 748 KB Output is correct
5 Correct 6 ms 1132 KB Output is correct
6 Correct 5 ms 1004 KB Output is correct
7 Correct 4 ms 1004 KB Output is correct
8 Correct 8 ms 1152 KB Output is correct
9 Correct 7 ms 1132 KB Output is correct
10 Correct 12 ms 1260 KB Output is correct
11 Correct 12 ms 1260 KB Output is correct
12 Correct 15 ms 1260 KB Output is correct
13 Correct 10 ms 1260 KB Output is correct
14 Correct 11 ms 1260 KB Output is correct
15 Correct 11 ms 1408 KB Output is correct
16 Correct 12 ms 1260 KB Output is correct
17 Correct 8 ms 1260 KB Output is correct
18 Correct 10 ms 1260 KB Output is correct
19 Correct 10 ms 1260 KB Output is correct
20 Correct 12 ms 1260 KB Output is correct
21 Correct 25 ms 1388 KB Output is correct
22 Correct 34 ms 1644 KB Output is correct
23 Correct 18 ms 1388 KB Output is correct
24 Correct 33 ms 1644 KB Output is correct
25 Correct 34 ms 1644 KB Output is correct
26 Correct 43 ms 1644 KB Output is correct
27 Correct 35 ms 1644 KB Output is correct
28 Correct 40 ms 1644 KB Output is correct
29 Correct 36 ms 1516 KB Output is correct
30 Correct 35 ms 1516 KB Output is correct
31 Correct 36 ms 1644 KB Output is correct
32 Correct 35 ms 1644 KB Output is correct
33 Correct 35 ms 1516 KB Output is correct
34 Correct 35 ms 1516 KB Output is correct
35 Correct 35 ms 1516 KB Output is correct
36 Correct 36 ms 1644 KB Output is correct
37 Correct 78 ms 1900 KB Output is correct
38 Correct 75 ms 1900 KB Output is correct
39 Correct 89 ms 1772 KB Output is correct
40 Correct 109 ms 2156 KB Output is correct
41 Correct 97 ms 1948 KB Output is correct
42 Correct 94 ms 1900 KB Output is correct
43 Correct 99 ms 2156 KB Output is correct
44 Correct 104 ms 2156 KB Output is correct
45 Correct 101 ms 2156 KB Output is correct
46 Correct 96 ms 2028 KB Output is correct
47 Correct 122 ms 2028 KB Output is correct
48 Correct 119 ms 2028 KB Output is correct
49 Correct 92 ms 1900 KB Output is correct
50 Correct 94 ms 1900 KB Output is correct
51 Correct 91 ms 1772 KB Output is correct
52 Correct 110 ms 2284 KB Output is correct
53 Correct 132 ms 2308 KB Output is correct
54 Correct 142 ms 2284 KB Output is correct
55 Correct 169 ms 2516 KB Output is correct
56 Correct 123 ms 2284 KB Output is correct
57 Correct 158 ms 2536 KB Output is correct
58 Correct 143 ms 2264 KB Output is correct
59 Correct 149 ms 2408 KB Output is correct
60 Correct 140 ms 1900 KB Output is correct
61 Correct 149 ms 2408 KB Output is correct
62 Correct 139 ms 2408 KB Output is correct
63 Correct 141 ms 2536 KB Output is correct
64 Correct 141 ms 2536 KB Output is correct
65 Correct 117 ms 1900 KB Output is correct
66 Correct 110 ms 2008 KB Output is correct
67 Correct 169 ms 2408 KB Output is correct
68 Correct 185 ms 1900 KB Output is correct
69 Correct 267 ms 3044 KB Output is correct
70 Correct 231 ms 2664 KB Output is correct
71 Correct 228 ms 2664 KB Output is correct
72 Correct 221 ms 1900 KB Output is correct
73 Correct 221 ms 2028 KB Output is correct
74 Correct 285 ms 3172 KB Output is correct
75 Correct 256 ms 2916 KB Output is correct
76 Correct 275 ms 3044 KB Output is correct
77 Correct 271 ms 3172 KB Output is correct