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Submission #94409

# Submission time Handle Problem Language Result Execution time Memory
94409 2019-01-18T09:06:50 Z Kastanda Bootfall (IZhO17_bootfall) C++11
100 / 100
 406 ms 1960 KB 
#include<bits/stdc++.h>
using namespace std;
const int N = 505, SQ = 24;
int n, sum, A[N];
bitset < N * N > T, R, B, P[SQ];
int main()
{
    scanf("%d", &n);
    bool odd = 0, even = 0;
    for (int i = 0; i < n; i++)
    {
        scanf("%d", &A[i]);
        sum += A[i];
        if (A[i] & 1) odd = 1;
        else even = 1;
    }
    if (odd && even)
        return !printf("0");
    if (odd && (n & 1))
        return !printf("0");

    for (int i = 0; i <= (n - 1) / SQ; i++)
    {
        P[i][0] = 1;
        int l = i * SQ, r = min(l + SQ, n);
        for (int j = 0; j < n; j++)
            if (j < l || r <= j)
                P[i] |= P[i] << A[j];
    }
    B[0] = 1;
    for (int j = 0; j < n; j++)
        B |= B << A[j];
    if (!B[sum >> 1])
        return !printf("0");

    for (int j = 1; j < N * N; j++)
        R[j] = 1;

    for (int i = 0; i < n; i++)
    {
        int block = i / SQ;
        int l = block * SQ, r = min(l + SQ, n);
        B = P[block];
        for (int j = l; j < r; j++)
            if (j != i)
                B |= B << A[j];
        int _sum = sum - A[i];
        int half = (_sum + 2) >> 1;
        T = 0;
        for (int j = half; j <= _sum; j++)
            if (B[j]) T[j + j - _sum] = 1;
        R = R & T;
    }
    printf("%d\n", (int)R.count());
    for (int j = 1; j < N * N; j++)
        if (R[j]) printf("%d ", j);
    return 0;
}

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:8:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
bootfall.cpp:12:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &A[i]);
         ~~~~~^~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 504 KB Output is correct
2 Correct 3 ms 504 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 4 ms 504 KB Output is correct
6 Correct 3 ms 504 KB Output is correct
7 Correct 3 ms 504 KB Output is correct
8 Correct 4 ms 504 KB Output is correct
9 Correct 2 ms 376 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 504 KB Output is correct
2 Correct 3 ms 504 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 4 ms 504 KB Output is correct
6 Correct 3 ms 504 KB Output is correct
7 Correct 3 ms 504 KB Output is correct
8 Correct 4 ms 504 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 10 ms 508 KB Output is correct
11 Correct 10 ms 504 KB Output is correct
12 Correct 10 ms 636 KB Output is correct
13 Correct 2 ms 380 KB Output is correct
14 Correct 10 ms 504 KB Output is correct
15 Correct 10 ms 504 KB Output is correct
16 Correct 11 ms 636 KB Output is correct
17 Correct 7 ms 584 KB Output is correct
18 Correct 10 ms 504 KB Output is correct
19 Correct 10 ms 632 KB Output is correct
20 Correct 10 ms 632 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 504 KB Output is correct
2 Correct 3 ms 504 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 4 ms 504 KB Output is correct
6 Correct 3 ms 504 KB Output is correct
7 Correct 3 ms 504 KB Output is correct
8 Correct 4 ms 504 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 10 ms 508 KB Output is correct
11 Correct 10 ms 504 KB Output is correct
12 Correct 10 ms 636 KB Output is correct
13 Correct 2 ms 380 KB Output is correct
14 Correct 10 ms 504 KB Output is correct
15 Correct 10 ms 504 KB Output is correct
16 Correct 11 ms 636 KB Output is correct
17 Correct 7 ms 584 KB Output is correct
18 Correct 10 ms 504 KB Output is correct
19 Correct 10 ms 632 KB Output is correct
20 Correct 10 ms 632 KB Output is correct
21 Correct 22 ms 632 KB Output is correct
22 Correct 27 ms 672 KB Output is correct
23 Correct 19 ms 632 KB Output is correct
24 Correct 34 ms 636 KB Output is correct
25 Correct 35 ms 704 KB Output is correct
26 Correct 35 ms 632 KB Output is correct
27 Correct 36 ms 632 KB Output is correct
28 Correct 37 ms 632 KB Output is correct
29 Correct 36 ms 632 KB Output is correct
30 Correct 2 ms 256 KB Output is correct
31 Correct 37 ms 704 KB Output is correct
32 Correct 36 ms 632 KB Output is correct
33 Correct 37 ms 632 KB Output is correct
34 Correct 36 ms 632 KB Output is correct
35 Correct 37 ms 632 KB Output is correct
36 Correct 37 ms 704 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 504 KB Output is correct
2 Correct 3 ms 504 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 4 ms 504 KB Output is correct
6 Correct 3 ms 504 KB Output is correct
7 Correct 3 ms 504 KB Output is correct
8 Correct 4 ms 504 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 10 ms 508 KB Output is correct
11 Correct 10 ms 504 KB Output is correct
12 Correct 10 ms 636 KB Output is correct
13 Correct 2 ms 380 KB Output is correct
14 Correct 10 ms 504 KB Output is correct
15 Correct 10 ms 504 KB Output is correct
16 Correct 11 ms 636 KB Output is correct
17 Correct 7 ms 584 KB Output is correct
18 Correct 10 ms 504 KB Output is correct
19 Correct 10 ms 632 KB Output is correct
20 Correct 10 ms 632 KB Output is correct
21 Correct 22 ms 632 KB Output is correct
22 Correct 27 ms 672 KB Output is correct
23 Correct 19 ms 632 KB Output is correct
24 Correct 34 ms 636 KB Output is correct
25 Correct 35 ms 704 KB Output is correct
26 Correct 35 ms 632 KB Output is correct
27 Correct 36 ms 632 KB Output is correct
28 Correct 37 ms 632 KB Output is correct
29 Correct 36 ms 632 KB Output is correct
30 Correct 2 ms 256 KB Output is correct
31 Correct 37 ms 704 KB Output is correct
32 Correct 36 ms 632 KB Output is correct
33 Correct 37 ms 632 KB Output is correct
34 Correct 36 ms 632 KB Output is correct
35 Correct 37 ms 632 KB Output is correct
36 Correct 37 ms 704 KB Output is correct
37 Correct 82 ms 832 KB Output is correct
38 Correct 86 ms 860 KB Output is correct
39 Correct 113 ms 916 KB Output is correct
40 Correct 124 ms 1016 KB Output is correct
41 Correct 126 ms 888 KB Output is correct
42 Correct 111 ms 1016 KB Output is correct
43 Correct 116 ms 1072 KB Output is correct
44 Correct 118 ms 1016 KB Output is correct
45 Correct 120 ms 1012 KB Output is correct
46 Correct 121 ms 888 KB Output is correct
47 Correct 115 ms 1028 KB Output is correct
48 Correct 118 ms 892 KB Output is correct
49 Correct 117 ms 1016 KB Output is correct
50 Correct 115 ms 864 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 136 ms 1060 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 504 KB Output is correct
2 Correct 3 ms 504 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 4 ms 504 KB Output is correct
6 Correct 3 ms 504 KB Output is correct
7 Correct 3 ms 504 KB Output is correct
8 Correct 4 ms 504 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 10 ms 508 KB Output is correct
11 Correct 10 ms 504 KB Output is correct
12 Correct 10 ms 636 KB Output is correct
13 Correct 2 ms 380 KB Output is correct
14 Correct 10 ms 504 KB Output is correct
15 Correct 10 ms 504 KB Output is correct
16 Correct 11 ms 636 KB Output is correct
17 Correct 7 ms 584 KB Output is correct
18 Correct 10 ms 504 KB Output is correct
19 Correct 10 ms 632 KB Output is correct
20 Correct 10 ms 632 KB Output is correct
21 Correct 22 ms 632 KB Output is correct
22 Correct 27 ms 672 KB Output is correct
23 Correct 19 ms 632 KB Output is correct
24 Correct 34 ms 636 KB Output is correct
25 Correct 35 ms 704 KB Output is correct
26 Correct 35 ms 632 KB Output is correct
27 Correct 36 ms 632 KB Output is correct
28 Correct 37 ms 632 KB Output is correct
29 Correct 36 ms 632 KB Output is correct
30 Correct 2 ms 256 KB Output is correct
31 Correct 37 ms 704 KB Output is correct
32 Correct 36 ms 632 KB Output is correct
33 Correct 37 ms 632 KB Output is correct
34 Correct 36 ms 632 KB Output is correct
35 Correct 37 ms 632 KB Output is correct
36 Correct 37 ms 704 KB Output is correct
37 Correct 82 ms 832 KB Output is correct
38 Correct 86 ms 860 KB Output is correct
39 Correct 113 ms 916 KB Output is correct
40 Correct 124 ms 1016 KB Output is correct
41 Correct 126 ms 888 KB Output is correct
42 Correct 111 ms 1016 KB Output is correct
43 Correct 116 ms 1072 KB Output is correct
44 Correct 118 ms 1016 KB Output is correct
45 Correct 120 ms 1012 KB Output is correct
46 Correct 121 ms 888 KB Output is correct
47 Correct 115 ms 1028 KB Output is correct
48 Correct 118 ms 892 KB Output is correct
49 Correct 117 ms 1016 KB Output is correct
50 Correct 115 ms 864 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 136 ms 1060 KB Output is correct
53 Correct 146 ms 1088 KB Output is correct
54 Correct 181 ms 1068 KB Output is correct
55 Correct 202 ms 1188 KB Output is correct
56 Correct 152 ms 1144 KB Output is correct
57 Correct 210 ms 1328 KB Output is correct
58 Correct 187 ms 1144 KB Output is correct
59 Correct 193 ms 1248 KB Output is correct
60 Correct 2 ms 376 KB Output is correct
61 Correct 194 ms 1144 KB Output is correct
62 Correct 194 ms 1272 KB Output is correct
63 Correct 182 ms 1244 KB Output is correct
64 Correct 174 ms 1272 KB Output is correct
65 Correct 155 ms 896 KB Output is correct
66 Correct 151 ms 956 KB Output is correct

Subtask #6
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 504 KB Output is correct
2 Correct 3 ms 504 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 4 ms 504 KB Output is correct
6 Correct 3 ms 504 KB Output is correct
7 Correct 3 ms 504 KB Output is correct
8 Correct 4 ms 504 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 10 ms 508 KB Output is correct
11 Correct 10 ms 504 KB Output is correct
12 Correct 10 ms 636 KB Output is correct
13 Correct 2 ms 380 KB Output is correct
14 Correct 10 ms 504 KB Output is correct
15 Correct 10 ms 504 KB Output is correct
16 Correct 11 ms 636 KB Output is correct
17 Correct 7 ms 584 KB Output is correct
18 Correct 10 ms 504 KB Output is correct
19 Correct 10 ms 632 KB Output is correct
20 Correct 10 ms 632 KB Output is correct
21 Correct 22 ms 632 KB Output is correct
22 Correct 27 ms 672 KB Output is correct
23 Correct 19 ms 632 KB Output is correct
24 Correct 34 ms 636 KB Output is correct
25 Correct 35 ms 704 KB Output is correct
26 Correct 35 ms 632 KB Output is correct
27 Correct 36 ms 632 KB Output is correct
28 Correct 37 ms 632 KB Output is correct
29 Correct 36 ms 632 KB Output is correct
30 Correct 2 ms 256 KB Output is correct
31 Correct 37 ms 704 KB Output is correct
32 Correct 36 ms 632 KB Output is correct
33 Correct 37 ms 632 KB Output is correct
34 Correct 36 ms 632 KB Output is correct
35 Correct 37 ms 632 KB Output is correct
36 Correct 37 ms 704 KB Output is correct
37 Correct 82 ms 832 KB Output is correct
38 Correct 86 ms 860 KB Output is correct
39 Correct 113 ms 916 KB Output is correct
40 Correct 124 ms 1016 KB Output is correct
41 Correct 126 ms 888 KB Output is correct
42 Correct 111 ms 1016 KB Output is correct
43 Correct 116 ms 1072 KB Output is correct
44 Correct 118 ms 1016 KB Output is correct
45 Correct 120 ms 1012 KB Output is correct
46 Correct 121 ms 888 KB Output is correct
47 Correct 115 ms 1028 KB Output is correct
48 Correct 118 ms 892 KB Output is correct
49 Correct 117 ms 1016 KB Output is correct
50 Correct 115 ms 864 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 136 ms 1060 KB Output is correct
53 Correct 146 ms 1088 KB Output is correct
54 Correct 181 ms 1068 KB Output is correct
55 Correct 202 ms 1188 KB Output is correct
56 Correct 152 ms 1144 KB Output is correct
57 Correct 210 ms 1328 KB Output is correct
58 Correct 187 ms 1144 KB Output is correct
59 Correct 193 ms 1248 KB Output is correct
60 Correct 2 ms 376 KB Output is correct
61 Correct 194 ms 1144 KB Output is correct
62 Correct 194 ms 1272 KB Output is correct
63 Correct 182 ms 1244 KB Output is correct
64 Correct 174 ms 1272 KB Output is correct
65 Correct 155 ms 896 KB Output is correct
66 Correct 151 ms 956 KB Output is correct
67 Correct 226 ms 1220 KB Output is correct
68 Correct 123 ms 1088 KB Output is correct
69 Correct 382 ms 1880 KB Output is correct
70 Correct 343 ms 1676 KB Output is correct
71 Correct 334 ms 1528 KB Output is correct
72 Correct 2 ms 376 KB Output is correct
73 Correct 2 ms 376 KB Output is correct
74 Correct 398 ms 1884 KB Output is correct
75 Correct 368 ms 1960 KB Output is correct
76 Correct 401 ms 1912 KB Output is correct
77 Correct 406 ms 1912 KB Output is correct