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Submission #170497

# Submission time Handle Problem Language Result Execution time Memory
170497 2019-12-25T13:37:47 Z mcdx9524 Bootfall (IZhO17_bootfall) C++14
100 / 100
 956 ms 3828 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const int N = 500 * 500 + 7;
const int mod = 1e9 + 7;

int dp[N];
int can[N];

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

void rem(int x) {
    for (int i = x; i < N; i++) {
        dp[i] = (dp[i] - dp[i - x] + mod) % mod;
    }
}

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    int n;
    cin >> n;
    vector <int> a(n);
    for (int i = 0; i < n; i++) {
        cin >> a[i];
    }
    dp[0] = 1;
    int sum = 0;
    for (int i = 0; i < n; i++) {
        add(a[i]);
        sum += a[i];
    }
    if (!dp[sum / 2]) {
        cout << 0 << '\n';
        return 0;
    }
    for (int i = 0; i < n; i++) {
        sum -= a[i];
        rem(a[i]);
        for (int j = 0; j < N; j++) {
            if (dp[j]) {
                can[abs(sum - 2 * j)]++;
            }
        }
        sum += a[i];
        add(a[i]);
    }
    vector <int> res;
    for (int i = 1; i < N; i++) {
        if (can[i] == 2 * n) {
            res.push_back(i);
        }
    }
    cout << (int) res.size() << '\n';
    for (int x : res) {
        cout << x << ' ';
    }
    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 1276 KB Output is correct
2 Correct 14 ms 1400 KB Output is correct
3 Correct 4 ms 1272 KB Output is correct
4 Correct 11 ms 1400 KB Output is correct
5 Correct 24 ms 1400 KB Output is correct
6 Correct 18 ms 1400 KB Output is correct
7 Correct 14 ms 1400 KB Output is correct
8 Correct 24 ms 1400 KB Output is correct
9 Correct 20 ms 1272 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 1276 KB Output is correct
2 Correct 14 ms 1400 KB Output is correct
3 Correct 4 ms 1272 KB Output is correct
4 Correct 11 ms 1400 KB Output is correct
5 Correct 24 ms 1400 KB Output is correct
6 Correct 18 ms 1400 KB Output is correct
7 Correct 14 ms 1400 KB Output is correct
8 Correct 24 ms 1400 KB Output is correct
9 Correct 20 ms 1272 KB Output is correct
10 Correct 54 ms 1400 KB Output is correct
11 Correct 59 ms 1272 KB Output is correct
12 Correct 54 ms 1276 KB Output is correct
13 Correct 49 ms 1400 KB Output is correct
14 Correct 52 ms 1368 KB Output is correct
15 Correct 56 ms 1372 KB Output is correct
16 Correct 60 ms 1276 KB Output is correct
17 Correct 35 ms 1400 KB Output is correct
18 Correct 45 ms 1272 KB Output is correct
19 Correct 49 ms 1372 KB Output is correct
20 Correct 53 ms 1364 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 1276 KB Output is correct
2 Correct 14 ms 1400 KB Output is correct
3 Correct 4 ms 1272 KB Output is correct
4 Correct 11 ms 1400 KB Output is correct
5 Correct 24 ms 1400 KB Output is correct
6 Correct 18 ms 1400 KB Output is correct
7 Correct 14 ms 1400 KB Output is correct
8 Correct 24 ms 1400 KB Output is correct
9 Correct 20 ms 1272 KB Output is correct
10 Correct 54 ms 1400 KB Output is correct
11 Correct 59 ms 1272 KB Output is correct
12 Correct 54 ms 1276 KB Output is correct
13 Correct 49 ms 1400 KB Output is correct
14 Correct 52 ms 1368 KB Output is correct
15 Correct 56 ms 1372 KB Output is correct
16 Correct 60 ms 1276 KB Output is correct
17 Correct 35 ms 1400 KB Output is correct
18 Correct 45 ms 1272 KB Output is correct
19 Correct 49 ms 1372 KB Output is correct
20 Correct 53 ms 1364 KB Output is correct
21 Correct 111 ms 1380 KB Output is correct
22 Correct 127 ms 1500 KB Output is correct
23 Correct 89 ms 1460 KB Output is correct
24 Correct 162 ms 1400 KB Output is correct
25 Correct 160 ms 1400 KB Output is correct
26 Correct 169 ms 1400 KB Output is correct
27 Correct 168 ms 1400 KB Output is correct
28 Correct 167 ms 1400 KB Output is correct
29 Correct 168 ms 1440 KB Output is correct
30 Correct 168 ms 1400 KB Output is correct
31 Correct 168 ms 1404 KB Output is correct
32 Correct 170 ms 1388 KB Output is correct
33 Correct 168 ms 1528 KB Output is correct
34 Correct 167 ms 1444 KB Output is correct
35 Correct 168 ms 1440 KB Output is correct
36 Correct 172 ms 1528 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 1276 KB Output is correct
2 Correct 14 ms 1400 KB Output is correct
3 Correct 4 ms 1272 KB Output is correct
4 Correct 11 ms 1400 KB Output is correct
5 Correct 24 ms 1400 KB Output is correct
6 Correct 18 ms 1400 KB Output is correct
7 Correct 14 ms 1400 KB Output is correct
8 Correct 24 ms 1400 KB Output is correct
9 Correct 20 ms 1272 KB Output is correct
10 Correct 54 ms 1400 KB Output is correct
11 Correct 59 ms 1272 KB Output is correct
12 Correct 54 ms 1276 KB Output is correct
13 Correct 49 ms 1400 KB Output is correct
14 Correct 52 ms 1368 KB Output is correct
15 Correct 56 ms 1372 KB Output is correct
16 Correct 60 ms 1276 KB Output is correct
17 Correct 35 ms 1400 KB Output is correct
18 Correct 45 ms 1272 KB Output is correct
19 Correct 49 ms 1372 KB Output is correct
20 Correct 53 ms 1364 KB Output is correct
21 Correct 111 ms 1380 KB Output is correct
22 Correct 127 ms 1500 KB Output is correct
23 Correct 89 ms 1460 KB Output is correct
24 Correct 162 ms 1400 KB Output is correct
25 Correct 160 ms 1400 KB Output is correct
26 Correct 169 ms 1400 KB Output is correct
27 Correct 168 ms 1400 KB Output is correct
28 Correct 167 ms 1400 KB Output is correct
29 Correct 168 ms 1440 KB Output is correct
30 Correct 168 ms 1400 KB Output is correct
31 Correct 168 ms 1404 KB Output is correct
32 Correct 170 ms 1388 KB Output is correct
33 Correct 168 ms 1528 KB Output is correct
34 Correct 167 ms 1444 KB Output is correct
35 Correct 168 ms 1440 KB Output is correct
36 Correct 172 ms 1528 KB Output is correct
37 Correct 335 ms 1492 KB Output is correct
38 Correct 336 ms 1580 KB Output is correct
39 Correct 409 ms 1628 KB Output is correct
40 Correct 458 ms 1624 KB Output is correct
41 Correct 448 ms 1784 KB Output is correct
42 Correct 423 ms 1656 KB Output is correct
43 Correct 418 ms 2040 KB Output is correct
44 Correct 425 ms 2012 KB Output is correct
45 Correct 432 ms 1908 KB Output is correct
46 Correct 450 ms 1528 KB Output is correct
47 Correct 425 ms 1688 KB Output is correct
48 Correct 427 ms 1916 KB Output is correct
49 Correct 422 ms 1612 KB Output is correct
50 Correct 427 ms 1628 KB Output is correct
51 Correct 423 ms 1624 KB Output is correct
52 Correct 466 ms 2056 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 1276 KB Output is correct
2 Correct 14 ms 1400 KB Output is correct
3 Correct 4 ms 1272 KB Output is correct
4 Correct 11 ms 1400 KB Output is correct
5 Correct 24 ms 1400 KB Output is correct
6 Correct 18 ms 1400 KB Output is correct
7 Correct 14 ms 1400 KB Output is correct
8 Correct 24 ms 1400 KB Output is correct
9 Correct 20 ms 1272 KB Output is correct
10 Correct 54 ms 1400 KB Output is correct
11 Correct 59 ms 1272 KB Output is correct
12 Correct 54 ms 1276 KB Output is correct
13 Correct 49 ms 1400 KB Output is correct
14 Correct 52 ms 1368 KB Output is correct
15 Correct 56 ms 1372 KB Output is correct
16 Correct 60 ms 1276 KB Output is correct
17 Correct 35 ms 1400 KB Output is correct
18 Correct 45 ms 1272 KB Output is correct
19 Correct 49 ms 1372 KB Output is correct
20 Correct 53 ms 1364 KB Output is correct
21 Correct 111 ms 1380 KB Output is correct
22 Correct 127 ms 1500 KB Output is correct
23 Correct 89 ms 1460 KB Output is correct
24 Correct 162 ms 1400 KB Output is correct
25 Correct 160 ms 1400 KB Output is correct
26 Correct 169 ms 1400 KB Output is correct
27 Correct 168 ms 1400 KB Output is correct
28 Correct 167 ms 1400 KB Output is correct
29 Correct 168 ms 1440 KB Output is correct
30 Correct 168 ms 1400 KB Output is correct
31 Correct 168 ms 1404 KB Output is correct
32 Correct 170 ms 1388 KB Output is correct
33 Correct 168 ms 1528 KB Output is correct
34 Correct 167 ms 1444 KB Output is correct
35 Correct 168 ms 1440 KB Output is correct
36 Correct 172 ms 1528 KB Output is correct
37 Correct 335 ms 1492 KB Output is correct
38 Correct 336 ms 1580 KB Output is correct
39 Correct 409 ms 1628 KB Output is correct
40 Correct 458 ms 1624 KB Output is correct
41 Correct 448 ms 1784 KB Output is correct
42 Correct 423 ms 1656 KB Output is correct
43 Correct 418 ms 2040 KB Output is correct
44 Correct 425 ms 2012 KB Output is correct
45 Correct 432 ms 1908 KB Output is correct
46 Correct 450 ms 1528 KB Output is correct
47 Correct 425 ms 1688 KB Output is correct
48 Correct 427 ms 1916 KB Output is correct
49 Correct 422 ms 1612 KB Output is correct
50 Correct 427 ms 1628 KB Output is correct
51 Correct 423 ms 1624 KB Output is correct
52 Correct 466 ms 2056 KB Output is correct
53 Correct 511 ms 1884 KB Output is correct
54 Correct 598 ms 1912 KB Output is correct
55 Correct 620 ms 2396 KB Output is correct
56 Correct 524 ms 1912 KB Output is correct
57 Correct 620 ms 2552 KB Output is correct
58 Correct 602 ms 2040 KB Output is correct
59 Correct 609 ms 2296 KB Output is correct
60 Correct 600 ms 1528 KB Output is correct
61 Correct 610 ms 2168 KB Output is correct
62 Correct 563 ms 2296 KB Output is correct
63 Correct 583 ms 2420 KB Output is correct
64 Correct 554 ms 2424 KB Output is correct
65 Correct 525 ms 1528 KB Output is correct
66 Correct 512 ms 1628 KB Output is correct

Subtask #6
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 1276 KB Output is correct
2 Correct 14 ms 1400 KB Output is correct
3 Correct 4 ms 1272 KB Output is correct
4 Correct 11 ms 1400 KB Output is correct
5 Correct 24 ms 1400 KB Output is correct
6 Correct 18 ms 1400 KB Output is correct
7 Correct 14 ms 1400 KB Output is correct
8 Correct 24 ms 1400 KB Output is correct
9 Correct 20 ms 1272 KB Output is correct
10 Correct 54 ms 1400 KB Output is correct
11 Correct 59 ms 1272 KB Output is correct
12 Correct 54 ms 1276 KB Output is correct
13 Correct 49 ms 1400 KB Output is correct
14 Correct 52 ms 1368 KB Output is correct
15 Correct 56 ms 1372 KB Output is correct
16 Correct 60 ms 1276 KB Output is correct
17 Correct 35 ms 1400 KB Output is correct
18 Correct 45 ms 1272 KB Output is correct
19 Correct 49 ms 1372 KB Output is correct
20 Correct 53 ms 1364 KB Output is correct
21 Correct 111 ms 1380 KB Output is correct
22 Correct 127 ms 1500 KB Output is correct
23 Correct 89 ms 1460 KB Output is correct
24 Correct 162 ms 1400 KB Output is correct
25 Correct 160 ms 1400 KB Output is correct
26 Correct 169 ms 1400 KB Output is correct
27 Correct 168 ms 1400 KB Output is correct
28 Correct 167 ms 1400 KB Output is correct
29 Correct 168 ms 1440 KB Output is correct
30 Correct 168 ms 1400 KB Output is correct
31 Correct 168 ms 1404 KB Output is correct
32 Correct 170 ms 1388 KB Output is correct
33 Correct 168 ms 1528 KB Output is correct
34 Correct 167 ms 1444 KB Output is correct
35 Correct 168 ms 1440 KB Output is correct
36 Correct 172 ms 1528 KB Output is correct
37 Correct 335 ms 1492 KB Output is correct
38 Correct 336 ms 1580 KB Output is correct
39 Correct 409 ms 1628 KB Output is correct
40 Correct 458 ms 1624 KB Output is correct
41 Correct 448 ms 1784 KB Output is correct
42 Correct 423 ms 1656 KB Output is correct
43 Correct 418 ms 2040 KB Output is correct
44 Correct 425 ms 2012 KB Output is correct
45 Correct 432 ms 1908 KB Output is correct
46 Correct 450 ms 1528 KB Output is correct
47 Correct 425 ms 1688 KB Output is correct
48 Correct 427 ms 1916 KB Output is correct
49 Correct 422 ms 1612 KB Output is correct
50 Correct 427 ms 1628 KB Output is correct
51 Correct 423 ms 1624 KB Output is correct
52 Correct 466 ms 2056 KB Output is correct
53 Correct 511 ms 1884 KB Output is correct
54 Correct 598 ms 1912 KB Output is correct
55 Correct 620 ms 2396 KB Output is correct
56 Correct 524 ms 1912 KB Output is correct
57 Correct 620 ms 2552 KB Output is correct
58 Correct 602 ms 2040 KB Output is correct
59 Correct 609 ms 2296 KB Output is correct
60 Correct 600 ms 1528 KB Output is correct
61 Correct 610 ms 2168 KB Output is correct
62 Correct 563 ms 2296 KB Output is correct
63 Correct 583 ms 2420 KB Output is correct
64 Correct 554 ms 2424 KB Output is correct
65 Correct 525 ms 1528 KB Output is correct
66 Correct 512 ms 1628 KB Output is correct
67 Correct 698 ms 2260 KB Output is correct
68 Correct 234 ms 1272 KB Output is correct
69 Correct 945 ms 3356 KB Output is correct
70 Correct 901 ms 2552 KB Output is correct
71 Correct 892 ms 2556 KB Output is correct
72 Correct 891 ms 1784 KB Output is correct
73 Correct 885 ms 1784 KB Output is correct
74 Correct 945 ms 3572 KB Output is correct
75 Correct 917 ms 3164 KB Output is correct
76 Correct 955 ms 3572 KB Output is correct
77 Correct 956 ms 3828 KB Output is correct