oj.uz

Submission #315371

# Submission time Handle Problem Language Result Execution time Memory
315371 2020-10-22T18:11:07 Z dolphingarlic Bootfall (IZhO17_bootfall) C++14
44 / 100
 1000 ms 760 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("unroll-loops")
#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 < 250001; 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];
        ans &= good;
    }

    printf("%d\n", ans.count());
    for (int i = 0; i < 250001; i++) if (ans[i]) printf("%d ", i);
    return 0;
}

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:25:26: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   25 |         for (int j = tot - a[i] & 1; j <= tot - a[i]; j += 2) good[j] = possible[tot - a[i] - j >> 1];
      |                      ~~~~^~~~~~
bootfall.cpp:25:93: warning: suggest parentheses around '-' inside '>>' [-Wparentheses]
   25 |         for (int j = tot - a[i] & 1; j <= tot - a[i]; j += 2) good[j] = possible[tot - a[i] - j >> 1];
      |                                                                                  ~~~~~~~~~~~^~~
bootfall.cpp:29:14: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::size_t' {aka 'long unsigned int'} [-Wformat=]
   29 |     printf("%d\n", ans.count());
      |             ~^     ~~~~~~~~~~~
      |              |              |
      |              int            std::size_t {aka long unsigned int}
      |             %ld
bootfall.cpp:8:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    8 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
bootfall.cpp:12:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   12 |         scanf("%d", a + i);
      |         ~~~~~^~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 512 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 3 ms 512 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 2 ms 512 KB Output is correct
8 Correct 3 ms 512 KB Output is correct
9 Correct 2 ms 512 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 512 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 3 ms 512 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 2 ms 512 KB Output is correct
8 Correct 3 ms 512 KB Output is correct
9 Correct 2 ms 512 KB Output is correct
10 Correct 10 ms 544 KB Output is correct
11 Correct 10 ms 512 KB Output is correct
12 Correct 9 ms 512 KB Output is correct
13 Correct 8 ms 512 KB Output is correct
14 Correct 8 ms 512 KB Output is correct
15 Correct 8 ms 512 KB Output is correct
16 Correct 9 ms 512 KB Output is correct
17 Correct 4 ms 512 KB Output is correct
18 Correct 6 ms 512 KB Output is correct
19 Correct 7 ms 512 KB Output is correct
20 Correct 10 ms 512 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 512 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 3 ms 512 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 2 ms 512 KB Output is correct
8 Correct 3 ms 512 KB Output is correct
9 Correct 2 ms 512 KB Output is correct
10 Correct 10 ms 544 KB Output is correct
11 Correct 10 ms 512 KB Output is correct
12 Correct 9 ms 512 KB Output is correct
13 Correct 8 ms 512 KB Output is correct
14 Correct 8 ms 512 KB Output is correct
15 Correct 8 ms 512 KB Output is correct
16 Correct 9 ms 512 KB Output is correct
17 Correct 4 ms 512 KB Output is correct
18 Correct 6 ms 512 KB Output is correct
19 Correct 7 ms 512 KB Output is correct
20 Correct 10 ms 512 KB Output is correct
21 Correct 41 ms 540 KB Output is correct
22 Correct 51 ms 512 KB Output is correct
23 Correct 25 ms 512 KB Output is correct
24 Correct 82 ms 544 KB Output is correct
25 Correct 81 ms 512 KB Output is correct
26 Correct 92 ms 512 KB Output is correct
27 Correct 93 ms 512 KB Output is correct
28 Correct 92 ms 512 KB Output is correct
29 Correct 91 ms 512 KB Output is correct
30 Correct 93 ms 632 KB Output is correct
31 Correct 92 ms 512 KB Output is correct
32 Correct 92 ms 512 KB Output is correct
33 Correct 94 ms 636 KB Output is correct
34 Correct 92 ms 512 KB Output is correct
35 Correct 93 ms 512 KB Output is correct
36 Correct 92 ms 512 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 512 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 3 ms 512 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 2 ms 512 KB Output is correct
8 Correct 3 ms 512 KB Output is correct
9 Correct 2 ms 512 KB Output is correct
10 Correct 10 ms 544 KB Output is correct
11 Correct 10 ms 512 KB Output is correct
12 Correct 9 ms 512 KB Output is correct
13 Correct 8 ms 512 KB Output is correct
14 Correct 8 ms 512 KB Output is correct
15 Correct 8 ms 512 KB Output is correct
16 Correct 9 ms 512 KB Output is correct
17 Correct 4 ms 512 KB Output is correct
18 Correct 6 ms 512 KB Output is correct
19 Correct 7 ms 512 KB Output is correct
20 Correct 10 ms 512 KB Output is correct
21 Correct 41 ms 540 KB Output is correct
22 Correct 51 ms 512 KB Output is correct
23 Correct 25 ms 512 KB Output is correct
24 Correct 82 ms 544 KB Output is correct
25 Correct 81 ms 512 KB Output is correct
26 Correct 92 ms 512 KB Output is correct
27 Correct 93 ms 512 KB Output is correct
28 Correct 92 ms 512 KB Output is correct
29 Correct 91 ms 512 KB Output is correct
30 Correct 93 ms 632 KB Output is correct
31 Correct 92 ms 512 KB Output is correct
32 Correct 92 ms 512 KB Output is correct
33 Correct 94 ms 636 KB Output is correct
34 Correct 92 ms 512 KB Output is correct
35 Correct 93 ms 512 KB Output is correct
36 Correct 92 ms 512 KB Output is correct
37 Correct 376 ms 632 KB Output is correct
38 Correct 364 ms 512 KB Output is correct
39 Correct 574 ms 636 KB Output is correct
40 Correct 669 ms 760 KB Output is correct
41 Correct 685 ms 512 KB Output is correct
42 Correct 569 ms 632 KB Output is correct
43 Correct 562 ms 632 KB Output is correct
44 Correct 572 ms 760 KB Output is correct
45 Correct 577 ms 676 KB Output is correct
46 Correct 658 ms 636 KB Output is correct
47 Correct 572 ms 632 KB Output is correct
48 Correct 584 ms 540 KB Output is correct
49 Correct 580 ms 632 KB Output is correct
50 Correct 570 ms 632 KB Output is correct
51 Correct 3 ms 384 KB Output is correct
52 Correct 681 ms 676 KB Output is correct

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 512 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 3 ms 512 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 2 ms 512 KB Output is correct
8 Correct 3 ms 512 KB Output is correct
9 Correct 2 ms 512 KB Output is correct
10 Correct 10 ms 544 KB Output is correct
11 Correct 10 ms 512 KB Output is correct
12 Correct 9 ms 512 KB Output is correct
13 Correct 8 ms 512 KB Output is correct
14 Correct 8 ms 512 KB Output is correct
15 Correct 8 ms 512 KB Output is correct
16 Correct 9 ms 512 KB Output is correct
17 Correct 4 ms 512 KB Output is correct
18 Correct 6 ms 512 KB Output is correct
19 Correct 7 ms 512 KB Output is correct
20 Correct 10 ms 512 KB Output is correct
21 Correct 41 ms 540 KB Output is correct
22 Correct 51 ms 512 KB Output is correct
23 Correct 25 ms 512 KB Output is correct
24 Correct 82 ms 544 KB Output is correct
25 Correct 81 ms 512 KB Output is correct
26 Correct 92 ms 512 KB Output is correct
27 Correct 93 ms 512 KB Output is correct
28 Correct 92 ms 512 KB Output is correct
29 Correct 91 ms 512 KB Output is correct
30 Correct 93 ms 632 KB Output is correct
31 Correct 92 ms 512 KB Output is correct
32 Correct 92 ms 512 KB Output is correct
33 Correct 94 ms 636 KB Output is correct
34 Correct 92 ms 512 KB Output is correct
35 Correct 93 ms 512 KB Output is correct
36 Correct 92 ms 512 KB Output is correct
37 Correct 376 ms 632 KB Output is correct
38 Correct 364 ms 512 KB Output is correct
39 Correct 574 ms 636 KB Output is correct
40 Correct 669 ms 760 KB Output is correct
41 Correct 685 ms 512 KB Output is correct
42 Correct 569 ms 632 KB Output is correct
43 Correct 562 ms 632 KB Output is correct
44 Correct 572 ms 760 KB Output is correct
45 Correct 577 ms 676 KB Output is correct
46 Correct 658 ms 636 KB Output is correct
47 Correct 572 ms 632 KB Output is correct
48 Correct 584 ms 540 KB Output is correct
49 Correct 580 ms 632 KB Output is correct
50 Correct 570 ms 632 KB Output is correct
51 Correct 3 ms 384 KB Output is correct
52 Correct 681 ms 676 KB Output is correct
53 Correct 826 ms 632 KB Output is correct
54 Execution timed out 1088 ms 512 KB Time limit exceeded
55 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 512 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 3 ms 512 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 2 ms 512 KB Output is correct
8 Correct 3 ms 512 KB Output is correct
9 Correct 2 ms 512 KB Output is correct
10 Correct 10 ms 544 KB Output is correct
11 Correct 10 ms 512 KB Output is correct
12 Correct 9 ms 512 KB Output is correct
13 Correct 8 ms 512 KB Output is correct
14 Correct 8 ms 512 KB Output is correct
15 Correct 8 ms 512 KB Output is correct
16 Correct 9 ms 512 KB Output is correct
17 Correct 4 ms 512 KB Output is correct
18 Correct 6 ms 512 KB Output is correct
19 Correct 7 ms 512 KB Output is correct
20 Correct 10 ms 512 KB Output is correct
21 Correct 41 ms 540 KB Output is correct
22 Correct 51 ms 512 KB Output is correct
23 Correct 25 ms 512 KB Output is correct
24 Correct 82 ms 544 KB Output is correct
25 Correct 81 ms 512 KB Output is correct
26 Correct 92 ms 512 KB Output is correct
27 Correct 93 ms 512 KB Output is correct
28 Correct 92 ms 512 KB Output is correct
29 Correct 91 ms 512 KB Output is correct
30 Correct 93 ms 632 KB Output is correct
31 Correct 92 ms 512 KB Output is correct
32 Correct 92 ms 512 KB Output is correct
33 Correct 94 ms 636 KB Output is correct
34 Correct 92 ms 512 KB Output is correct
35 Correct 93 ms 512 KB Output is correct
36 Correct 92 ms 512 KB Output is correct
37 Correct 376 ms 632 KB Output is correct
38 Correct 364 ms 512 KB Output is correct
39 Correct 574 ms 636 KB Output is correct
40 Correct 669 ms 760 KB Output is correct
41 Correct 685 ms 512 KB Output is correct
42 Correct 569 ms 632 KB Output is correct
43 Correct 562 ms 632 KB Output is correct
44 Correct 572 ms 760 KB Output is correct
45 Correct 577 ms 676 KB Output is correct
46 Correct 658 ms 636 KB Output is correct
47 Correct 572 ms 632 KB Output is correct
48 Correct 584 ms 540 KB Output is correct
49 Correct 580 ms 632 KB Output is correct
50 Correct 570 ms 632 KB Output is correct
51 Correct 3 ms 384 KB Output is correct
52 Correct 681 ms 676 KB Output is correct
53 Correct 826 ms 632 KB Output is correct
54 Execution timed out 1088 ms 512 KB Time limit exceeded
55 Halted 0 ms 0 KB -