oj.uz

Submission #315309

# Submission time Handle Problem Language Result Execution time Memory
315309 2020-10-22T10:16:29 Z dolphingarlic Bootfall (IZhO17_bootfall) C++14
65 / 100
 1000 ms 888 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("O3")
#pragma GCC target("sse4,avx2,fma,avx")
using namespace std;

int main() {
    int n, a[500], tot = 0;
    scanf("%d", &n);
    bitset<250001> base;
    base[0] = 1;
    for (int i = 0; i < n; i++) {
        scanf("%d", a + i);
        tot += a[i];
        base |= base << a[i];
    }
    if ((tot & 1) || !base[tot >> 1]) return printf("0"), 0;

    bitset<250001> ans;
    for (int i = 1; i <= tot; i++) ans[i] = 1;

    for (int i = 0; i < n; i++) {
        bitset<250001> possible, good;
        possible[0] = 1;
        for (int j = 0; j < n; j++) if (j != i) possible |= possible << a[j];
        for (int j = tot - a[i] & 1; j <= tot - a[i]; j += 2) good[j] = possible[(tot - a[i] + j >> 1) - j];
        ans &= good;
    }

    printf("%d\n", ans.count());
    for (int i = 0; i <= tot; i++) if (ans[i]) printf("%d ", i);
    return 0;
}

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:26:26: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   26 |         for (int j = tot - a[i] & 1; j <= tot - a[i]; j += 2) good[j] = possible[(tot - a[i] + j >> 1) - j];
      |                      ~~~~^~~~~~
bootfall.cpp:26:94: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   26 |         for (int j = tot - a[i] & 1; j <= tot - a[i]; j += 2) good[j] = possible[(tot - a[i] + j >> 1) - j];
      |                                                                                   ~~~~~~~~~~~^~~
bootfall.cpp:30:14: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::size_t' {aka 'long unsigned int'} [-Wformat=]
   30 |     printf("%d\n", ans.count());
      |             ~^     ~~~~~~~~~~~
      |              |              |
      |              int            std::size_t {aka long unsigned int}
      |             %ld
bootfall.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    9 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
bootfall.cpp:13:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   13 |         scanf("%d", a + i);
      |         ~~~~~^~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 2 ms 512 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 1 ms 512 KB Output is correct
8 Correct 2 ms 512 KB Output is correct
9 Correct 1 ms 512 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 2 ms 512 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 1 ms 512 KB Output is correct
8 Correct 2 ms 512 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 8 ms 512 KB Output is correct
11 Correct 8 ms 512 KB Output is correct
12 Correct 9 ms 512 KB Output is correct
13 Correct 6 ms 512 KB Output is correct
14 Correct 7 ms 512 KB Output is correct
15 Correct 7 ms 512 KB Output is correct
16 Correct 10 ms 512 KB Output is correct
17 Correct 3 ms 512 KB Output is correct
18 Correct 5 ms 512 KB Output is correct
19 Correct 6 ms 512 KB Output is correct
20 Correct 8 ms 512 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 2 ms 512 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 1 ms 512 KB Output is correct
8 Correct 2 ms 512 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 8 ms 512 KB Output is correct
11 Correct 8 ms 512 KB Output is correct
12 Correct 9 ms 512 KB Output is correct
13 Correct 6 ms 512 KB Output is correct
14 Correct 7 ms 512 KB Output is correct
15 Correct 7 ms 512 KB Output is correct
16 Correct 10 ms 512 KB Output is correct
17 Correct 3 ms 512 KB Output is correct
18 Correct 5 ms 512 KB Output is correct
19 Correct 6 ms 512 KB Output is correct
20 Correct 8 ms 512 KB Output is correct
21 Correct 33 ms 512 KB Output is correct
22 Correct 46 ms 512 KB Output is correct
23 Correct 20 ms 512 KB Output is correct
24 Correct 69 ms 512 KB Output is correct
25 Correct 70 ms 512 KB Output is correct
26 Correct 79 ms 512 KB Output is correct
27 Correct 79 ms 512 KB Output is correct
28 Correct 81 ms 512 KB Output is correct
29 Correct 83 ms 632 KB Output is correct
30 Correct 77 ms 512 KB Output is correct
31 Correct 79 ms 512 KB Output is correct
32 Correct 78 ms 512 KB Output is correct
33 Correct 80 ms 512 KB Output is correct
34 Correct 79 ms 540 KB Output is correct
35 Correct 78 ms 512 KB Output is correct
36 Correct 78 ms 544 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 2 ms 512 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 1 ms 512 KB Output is correct
8 Correct 2 ms 512 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 8 ms 512 KB Output is correct
11 Correct 8 ms 512 KB Output is correct
12 Correct 9 ms 512 KB Output is correct
13 Correct 6 ms 512 KB Output is correct
14 Correct 7 ms 512 KB Output is correct
15 Correct 7 ms 512 KB Output is correct
16 Correct 10 ms 512 KB Output is correct
17 Correct 3 ms 512 KB Output is correct
18 Correct 5 ms 512 KB Output is correct
19 Correct 6 ms 512 KB Output is correct
20 Correct 8 ms 512 KB Output is correct
21 Correct 33 ms 512 KB Output is correct
22 Correct 46 ms 512 KB Output is correct
23 Correct 20 ms 512 KB Output is correct
24 Correct 69 ms 512 KB Output is correct
25 Correct 70 ms 512 KB Output is correct
26 Correct 79 ms 512 KB Output is correct
27 Correct 79 ms 512 KB Output is correct
28 Correct 81 ms 512 KB Output is correct
29 Correct 83 ms 632 KB Output is correct
30 Correct 77 ms 512 KB Output is correct
31 Correct 79 ms 512 KB Output is correct
32 Correct 78 ms 512 KB Output is correct
33 Correct 80 ms 512 KB Output is correct
34 Correct 79 ms 540 KB Output is correct
35 Correct 78 ms 512 KB Output is correct
36 Correct 78 ms 544 KB Output is correct
37 Correct 314 ms 632 KB Output is correct
38 Correct 318 ms 632 KB Output is correct
39 Correct 492 ms 632 KB Output is correct
40 Correct 575 ms 632 KB Output is correct
41 Correct 559 ms 632 KB Output is correct
42 Correct 490 ms 632 KB Output is correct
43 Correct 476 ms 760 KB Output is correct
44 Correct 490 ms 760 KB Output is correct
45 Correct 499 ms 760 KB Output is correct
46 Correct 566 ms 512 KB Output is correct
47 Correct 493 ms 632 KB Output is correct
48 Correct 507 ms 632 KB Output is correct
49 Correct 500 ms 512 KB Output is correct
50 Correct 489 ms 632 KB Output is correct
51 Correct 3 ms 384 KB Output is correct
52 Correct 566 ms 760 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 2 ms 512 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 1 ms 512 KB Output is correct
8 Correct 2 ms 512 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 8 ms 512 KB Output is correct
11 Correct 8 ms 512 KB Output is correct
12 Correct 9 ms 512 KB Output is correct
13 Correct 6 ms 512 KB Output is correct
14 Correct 7 ms 512 KB Output is correct
15 Correct 7 ms 512 KB Output is correct
16 Correct 10 ms 512 KB Output is correct
17 Correct 3 ms 512 KB Output is correct
18 Correct 5 ms 512 KB Output is correct
19 Correct 6 ms 512 KB Output is correct
20 Correct 8 ms 512 KB Output is correct
21 Correct 33 ms 512 KB Output is correct
22 Correct 46 ms 512 KB Output is correct
23 Correct 20 ms 512 KB Output is correct
24 Correct 69 ms 512 KB Output is correct
25 Correct 70 ms 512 KB Output is correct
26 Correct 79 ms 512 KB Output is correct
27 Correct 79 ms 512 KB Output is correct
28 Correct 81 ms 512 KB Output is correct
29 Correct 83 ms 632 KB Output is correct
30 Correct 77 ms 512 KB Output is correct
31 Correct 79 ms 512 KB Output is correct
32 Correct 78 ms 512 KB Output is correct
33 Correct 80 ms 512 KB Output is correct
34 Correct 79 ms 540 KB Output is correct
35 Correct 78 ms 512 KB Output is correct
36 Correct 78 ms 544 KB Output is correct
37 Correct 314 ms 632 KB Output is correct
38 Correct 318 ms 632 KB Output is correct
39 Correct 492 ms 632 KB Output is correct
40 Correct 575 ms 632 KB Output is correct
41 Correct 559 ms 632 KB Output is correct
42 Correct 490 ms 632 KB Output is correct
43 Correct 476 ms 760 KB Output is correct
44 Correct 490 ms 760 KB Output is correct
45 Correct 499 ms 760 KB Output is correct
46 Correct 566 ms 512 KB Output is correct
47 Correct 493 ms 632 KB Output is correct
48 Correct 507 ms 632 KB Output is correct
49 Correct 500 ms 512 KB Output is correct
50 Correct 489 ms 632 KB Output is correct
51 Correct 3 ms 384 KB Output is correct
52 Correct 566 ms 760 KB Output is correct
53 Correct 703 ms 668 KB Output is correct
54 Correct 965 ms 760 KB Output is correct
55 Correct 963 ms 888 KB Output is correct
56 Correct 735 ms 632 KB Output is correct
57 Correct 949 ms 864 KB Output is correct
58 Correct 967 ms 632 KB Output is correct
59 Correct 970 ms 760 KB Output is correct
60 Correct 3 ms 384 KB Output is correct
61 Correct 971 ms 672 KB Output is correct
62 Correct 801 ms 888 KB Output is correct
63 Correct 801 ms 804 KB Output is correct
64 Correct 776 ms 888 KB Output is correct
65 Correct 777 ms 632 KB Output is correct
66 Correct 749 ms 544 KB Output is correct

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 2 ms 512 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 1 ms 512 KB Output is correct
8 Correct 2 ms 512 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 8 ms 512 KB Output is correct
11 Correct 8 ms 512 KB Output is correct
12 Correct 9 ms 512 KB Output is correct
13 Correct 6 ms 512 KB Output is correct
14 Correct 7 ms 512 KB Output is correct
15 Correct 7 ms 512 KB Output is correct
16 Correct 10 ms 512 KB Output is correct
17 Correct 3 ms 512 KB Output is correct
18 Correct 5 ms 512 KB Output is correct
19 Correct 6 ms 512 KB Output is correct
20 Correct 8 ms 512 KB Output is correct
21 Correct 33 ms 512 KB Output is correct
22 Correct 46 ms 512 KB Output is correct
23 Correct 20 ms 512 KB Output is correct
24 Correct 69 ms 512 KB Output is correct
25 Correct 70 ms 512 KB Output is correct
26 Correct 79 ms 512 KB Output is correct
27 Correct 79 ms 512 KB Output is correct
28 Correct 81 ms 512 KB Output is correct
29 Correct 83 ms 632 KB Output is correct
30 Correct 77 ms 512 KB Output is correct
31 Correct 79 ms 512 KB Output is correct
32 Correct 78 ms 512 KB Output is correct
33 Correct 80 ms 512 KB Output is correct
34 Correct 79 ms 540 KB Output is correct
35 Correct 78 ms 512 KB Output is correct
36 Correct 78 ms 544 KB Output is correct
37 Correct 314 ms 632 KB Output is correct
38 Correct 318 ms 632 KB Output is correct
39 Correct 492 ms 632 KB Output is correct
40 Correct 575 ms 632 KB Output is correct
41 Correct 559 ms 632 KB Output is correct
42 Correct 490 ms 632 KB Output is correct
43 Correct 476 ms 760 KB Output is correct
44 Correct 490 ms 760 KB Output is correct
45 Correct 499 ms 760 KB Output is correct
46 Correct 566 ms 512 KB Output is correct
47 Correct 493 ms 632 KB Output is correct
48 Correct 507 ms 632 KB Output is correct
49 Correct 500 ms 512 KB Output is correct
50 Correct 489 ms 632 KB Output is correct
51 Correct 3 ms 384 KB Output is correct
52 Correct 566 ms 760 KB Output is correct
53 Correct 703 ms 668 KB Output is correct
54 Correct 965 ms 760 KB Output is correct
55 Correct 963 ms 888 KB Output is correct
56 Correct 735 ms 632 KB Output is correct
57 Correct 949 ms 864 KB Output is correct
58 Correct 967 ms 632 KB Output is correct
59 Correct 970 ms 760 KB Output is correct
60 Correct 3 ms 384 KB Output is correct
61 Correct 971 ms 672 KB Output is correct
62 Correct 801 ms 888 KB Output is correct
63 Correct 801 ms 804 KB Output is correct
64 Correct 776 ms 888 KB Output is correct
65 Correct 777 ms 632 KB Output is correct
66 Correct 749 ms 544 KB Output is correct
67 Execution timed out 1056 ms 544 KB Time limit exceeded
68 Halted 0 ms 0 KB -