oj.uz

Submission #315303

# Submission time Handle Problem Language Result Execution time Memory
315303 2020-10-22T10:11:03 Z dolphingarlic Bootfall (IZhO17_bootfall) C++14
44 / 100
 1000 ms 760 KB 
#include <bits/stdc++.h>
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 = 1; j <= tot; j++) good[j] = !(tot - a[i] + j & 1) && (tot - a[i] + j >> 1) - j >= 0 && 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:23:63: warning: suggest parentheses around '+' in operand of '&' [-Wparentheses]
   23 |         for (int j = 1; j <= tot; j++) good[j] = !(tot - a[i] + j & 1) && (tot - a[i] + j >> 1) - j >= 0 && possible[(tot - a[i] + j >> 1) - j];
      |                                                    ~~~~~~~~~~~^~~
bootfall.cpp:23:87: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   23 |         for (int j = 1; j <= tot; j++) good[j] = !(tot - a[i] + j & 1) && (tot - a[i] + j >> 1) - j >= 0 && possible[(tot - a[i] + j >> 1) - j];
      |                                                                            ~~~~~~~~~~~^~~
bootfall.cpp:23:130: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   23 |         for (int j = 1; j <= tot; j++) good[j] = !(tot - a[i] + j & 1) && (tot - a[i] + j >> 1) - j >= 0 && possible[(tot - a[i] + j >> 1) - j];
      |                                                                                                                       ~~~~~~~~~~~^~~
bootfall.cpp:27:14: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::size_t' {aka 'long unsigned int'} [-Wformat=]
   27 |     printf("%d\n", ans.count());
      |             ~^     ~~~~~~~~~~~
      |              |              |
      |              int            std::size_t {aka long unsigned int}
      |             %ld
bootfall.cpp:6:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    6 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
bootfall.cpp:10:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   10 |         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 1 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 2 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 1 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 2 ms 512 KB Output is correct
10 Correct 10 ms 512 KB Output is correct
11 Correct 10 ms 512 KB Output is correct
12 Correct 10 ms 512 KB Output is correct
13 Correct 8 ms 512 KB Output is correct
14 Correct 10 ms 512 KB Output is correct
15 Correct 9 ms 512 KB Output is correct
16 Correct 13 ms 552 KB Output is correct
17 Correct 4 ms 512 KB Output is correct
18 Correct 7 ms 512 KB Output is correct
19 Correct 11 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 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 1 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 2 ms 512 KB Output is correct
10 Correct 10 ms 512 KB Output is correct
11 Correct 10 ms 512 KB Output is correct
12 Correct 10 ms 512 KB Output is correct
13 Correct 8 ms 512 KB Output is correct
14 Correct 10 ms 512 KB Output is correct
15 Correct 9 ms 512 KB Output is correct
16 Correct 13 ms 552 KB Output is correct
17 Correct 4 ms 512 KB Output is correct
18 Correct 7 ms 512 KB Output is correct
19 Correct 11 ms 512 KB Output is correct
20 Correct 10 ms 512 KB Output is correct
21 Correct 44 ms 512 KB Output is correct
22 Correct 60 ms 512 KB Output is correct
23 Correct 26 ms 512 KB Output is correct
24 Correct 92 ms 632 KB Output is correct
25 Correct 93 ms 512 KB Output is correct
26 Correct 112 ms 512 KB Output is correct
27 Correct 113 ms 544 KB Output is correct
28 Correct 105 ms 512 KB Output is correct
29 Correct 108 ms 544 KB Output is correct
30 Correct 106 ms 512 KB Output is correct
31 Correct 106 ms 512 KB Output is correct
32 Correct 107 ms 632 KB Output is correct
33 Correct 105 ms 512 KB Output is correct
34 Correct 109 ms 540 KB Output is correct
35 Correct 104 ms 512 KB Output is correct
36 Correct 105 ms 632 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 1 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 2 ms 512 KB Output is correct
10 Correct 10 ms 512 KB Output is correct
11 Correct 10 ms 512 KB Output is correct
12 Correct 10 ms 512 KB Output is correct
13 Correct 8 ms 512 KB Output is correct
14 Correct 10 ms 512 KB Output is correct
15 Correct 9 ms 512 KB Output is correct
16 Correct 13 ms 552 KB Output is correct
17 Correct 4 ms 512 KB Output is correct
18 Correct 7 ms 512 KB Output is correct
19 Correct 11 ms 512 KB Output is correct
20 Correct 10 ms 512 KB Output is correct
21 Correct 44 ms 512 KB Output is correct
22 Correct 60 ms 512 KB Output is correct
23 Correct 26 ms 512 KB Output is correct
24 Correct 92 ms 632 KB Output is correct
25 Correct 93 ms 512 KB Output is correct
26 Correct 112 ms 512 KB Output is correct
27 Correct 113 ms 544 KB Output is correct
28 Correct 105 ms 512 KB Output is correct
29 Correct 108 ms 544 KB Output is correct
30 Correct 106 ms 512 KB Output is correct
31 Correct 106 ms 512 KB Output is correct
32 Correct 107 ms 632 KB Output is correct
33 Correct 105 ms 512 KB Output is correct
34 Correct 109 ms 540 KB Output is correct
35 Correct 104 ms 512 KB Output is correct
36 Correct 105 ms 632 KB Output is correct
37 Correct 421 ms 540 KB Output is correct
38 Correct 423 ms 632 KB Output is correct
39 Correct 708 ms 632 KB Output is correct
40 Correct 767 ms 636 KB Output is correct
41 Correct 791 ms 632 KB Output is correct
42 Correct 654 ms 632 KB Output is correct
43 Correct 640 ms 760 KB Output is correct
44 Correct 662 ms 632 KB Output is correct
45 Correct 674 ms 632 KB Output is correct
46 Correct 753 ms 632 KB Output is correct
47 Correct 660 ms 632 KB Output is correct
48 Correct 677 ms 632 KB Output is correct
49 Correct 672 ms 632 KB Output is correct
50 Correct 659 ms 544 KB Output is correct
51 Correct 3 ms 384 KB Output is correct
52 Correct 790 ms 672 KB Output is correct

Subtask #5
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 1 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 2 ms 512 KB Output is correct
10 Correct 10 ms 512 KB Output is correct
11 Correct 10 ms 512 KB Output is correct
12 Correct 10 ms 512 KB Output is correct
13 Correct 8 ms 512 KB Output is correct
14 Correct 10 ms 512 KB Output is correct
15 Correct 9 ms 512 KB Output is correct
16 Correct 13 ms 552 KB Output is correct
17 Correct 4 ms 512 KB Output is correct
18 Correct 7 ms 512 KB Output is correct
19 Correct 11 ms 512 KB Output is correct
20 Correct 10 ms 512 KB Output is correct
21 Correct 44 ms 512 KB Output is correct
22 Correct 60 ms 512 KB Output is correct
23 Correct 26 ms 512 KB Output is correct
24 Correct 92 ms 632 KB Output is correct
25 Correct 93 ms 512 KB Output is correct
26 Correct 112 ms 512 KB Output is correct
27 Correct 113 ms 544 KB Output is correct
28 Correct 105 ms 512 KB Output is correct
29 Correct 108 ms 544 KB Output is correct
30 Correct 106 ms 512 KB Output is correct
31 Correct 106 ms 512 KB Output is correct
32 Correct 107 ms 632 KB Output is correct
33 Correct 105 ms 512 KB Output is correct
34 Correct 109 ms 540 KB Output is correct
35 Correct 104 ms 512 KB Output is correct
36 Correct 105 ms 632 KB Output is correct
37 Correct 421 ms 540 KB Output is correct
38 Correct 423 ms 632 KB Output is correct
39 Correct 708 ms 632 KB Output is correct
40 Correct 767 ms 636 KB Output is correct
41 Correct 791 ms 632 KB Output is correct
42 Correct 654 ms 632 KB Output is correct
43 Correct 640 ms 760 KB Output is correct
44 Correct 662 ms 632 KB Output is correct
45 Correct 674 ms 632 KB Output is correct
46 Correct 753 ms 632 KB Output is correct
47 Correct 660 ms 632 KB Output is correct
48 Correct 677 ms 632 KB Output is correct
49 Correct 672 ms 632 KB Output is correct
50 Correct 659 ms 544 KB Output is correct
51 Correct 3 ms 384 KB Output is correct
52 Correct 790 ms 672 KB Output is correct
53 Correct 955 ms 672 KB Output is correct
54 Execution timed out 1098 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 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 1 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 2 ms 512 KB Output is correct
10 Correct 10 ms 512 KB Output is correct
11 Correct 10 ms 512 KB Output is correct
12 Correct 10 ms 512 KB Output is correct
13 Correct 8 ms 512 KB Output is correct
14 Correct 10 ms 512 KB Output is correct
15 Correct 9 ms 512 KB Output is correct
16 Correct 13 ms 552 KB Output is correct
17 Correct 4 ms 512 KB Output is correct
18 Correct 7 ms 512 KB Output is correct
19 Correct 11 ms 512 KB Output is correct
20 Correct 10 ms 512 KB Output is correct
21 Correct 44 ms 512 KB Output is correct
22 Correct 60 ms 512 KB Output is correct
23 Correct 26 ms 512 KB Output is correct
24 Correct 92 ms 632 KB Output is correct
25 Correct 93 ms 512 KB Output is correct
26 Correct 112 ms 512 KB Output is correct
27 Correct 113 ms 544 KB Output is correct
28 Correct 105 ms 512 KB Output is correct
29 Correct 108 ms 544 KB Output is correct
30 Correct 106 ms 512 KB Output is correct
31 Correct 106 ms 512 KB Output is correct
32 Correct 107 ms 632 KB Output is correct
33 Correct 105 ms 512 KB Output is correct
34 Correct 109 ms 540 KB Output is correct
35 Correct 104 ms 512 KB Output is correct
36 Correct 105 ms 632 KB Output is correct
37 Correct 421 ms 540 KB Output is correct
38 Correct 423 ms 632 KB Output is correct
39 Correct 708 ms 632 KB Output is correct
40 Correct 767 ms 636 KB Output is correct
41 Correct 791 ms 632 KB Output is correct
42 Correct 654 ms 632 KB Output is correct
43 Correct 640 ms 760 KB Output is correct
44 Correct 662 ms 632 KB Output is correct
45 Correct 674 ms 632 KB Output is correct
46 Correct 753 ms 632 KB Output is correct
47 Correct 660 ms 632 KB Output is correct
48 Correct 677 ms 632 KB Output is correct
49 Correct 672 ms 632 KB Output is correct
50 Correct 659 ms 544 KB Output is correct
51 Correct 3 ms 384 KB Output is correct
52 Correct 790 ms 672 KB Output is correct
53 Correct 955 ms 672 KB Output is correct
54 Execution timed out 1098 ms 512 KB Time limit exceeded
55 Halted 0 ms 0 KB -