oj.uz

Submission #315307

# Submission time Handle Problem Language Result Execution time Memory
315307 2020-10-22T10:13:41 Z dolphingarlic Bootfall (IZhO17_bootfall) C++14
44 / 100
 1000 ms 760 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("unroll-loops")
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 = 1; j < 250001; j++) good[j] = !(tot - a[i] + j & 1) && (tot - a[i] + j >> 1) >= j && possible[(tot - a[i] + j >> 1) - j];
        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:24:65: warning: suggest parentheses around '+' in operand of '&' [-Wparentheses]
   24 |         for (int j = 1; j < 250001; j++) good[j] = !(tot - a[i] + j & 1) && (tot - a[i] + j >> 1) >= j && possible[(tot - a[i] + j >> 1) - j];
      |                                                      ~~~~~~~~~~~^~~
bootfall.cpp:24:89: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   24 |         for (int j = 1; j < 250001; j++) good[j] = !(tot - a[i] + j & 1) && (tot - a[i] + j >> 1) >= j && possible[(tot - a[i] + j >> 1) - j];
      |                                                                              ~~~~~~~~~~~^~~
bootfall.cpp:24:128: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   24 |         for (int j = 1; j < 250001; j++) good[j] = !(tot - a[i] + j & 1) && (tot - a[i] + j >> 1) >= j && possible[(tot - a[i] + j >> 1) - j];
      |                                                                                                                     ~~~~~~~~~~~^~~
bootfall.cpp:28:14: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::size_t' {aka 'long unsigned int'} [-Wformat=]
   28 |     printf("%d\n", ans.count());
      |             ~^     ~~~~~~~~~~~
      |              |              |
      |              int            std::size_t {aka long unsigned int}
      |             %ld
bootfall.cpp:7:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    7 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
bootfall.cpp:11:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   11 |         scanf("%d", a + i);
      |         ~~~~~^~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 512 KB Output is correct
2 Correct 5 ms 512 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 4 ms 512 KB Output is correct
5 Correct 10 ms 512 KB Output is correct
6 Correct 7 ms 512 KB Output is correct
7 Correct 6 ms 512 KB Output is correct
8 Correct 11 ms 512 KB Output is correct
9 Correct 9 ms 512 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 512 KB Output is correct
2 Correct 5 ms 512 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 4 ms 512 KB Output is correct
5 Correct 10 ms 512 KB Output is correct
6 Correct 7 ms 512 KB Output is correct
7 Correct 6 ms 512 KB Output is correct
8 Correct 11 ms 512 KB Output is correct
9 Correct 9 ms 512 KB Output is correct
10 Correct 28 ms 512 KB Output is correct
11 Correct 29 ms 512 KB Output is correct
12 Correct 28 ms 512 KB Output is correct
13 Correct 24 ms 512 KB Output is correct
14 Correct 26 ms 512 KB Output is correct
15 Correct 26 ms 632 KB Output is correct
16 Correct 28 ms 512 KB Output is correct
17 Correct 16 ms 512 KB Output is correct
18 Correct 21 ms 512 KB Output is correct
19 Correct 24 ms 512 KB Output is correct
20 Correct 28 ms 512 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 512 KB Output is correct
2 Correct 5 ms 512 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 4 ms 512 KB Output is correct
5 Correct 10 ms 512 KB Output is correct
6 Correct 7 ms 512 KB Output is correct
7 Correct 6 ms 512 KB Output is correct
8 Correct 11 ms 512 KB Output is correct
9 Correct 9 ms 512 KB Output is correct
10 Correct 28 ms 512 KB Output is correct
11 Correct 29 ms 512 KB Output is correct
12 Correct 28 ms 512 KB Output is correct
13 Correct 24 ms 512 KB Output is correct
14 Correct 26 ms 512 KB Output is correct
15 Correct 26 ms 632 KB Output is correct
16 Correct 28 ms 512 KB Output is correct
17 Correct 16 ms 512 KB Output is correct
18 Correct 21 ms 512 KB Output is correct
19 Correct 24 ms 512 KB Output is correct
20 Correct 28 ms 512 KB Output is correct
21 Correct 77 ms 512 KB Output is correct
22 Correct 98 ms 632 KB Output is correct
23 Correct 58 ms 512 KB Output is correct
24 Correct 140 ms 512 KB Output is correct
25 Correct 144 ms 632 KB Output is correct
26 Correct 153 ms 512 KB Output is correct
27 Correct 152 ms 512 KB Output is correct
28 Correct 153 ms 632 KB Output is correct
29 Correct 154 ms 512 KB Output is correct
30 Correct 156 ms 632 KB Output is correct
31 Correct 154 ms 512 KB Output is correct
32 Correct 153 ms 512 KB Output is correct
33 Correct 154 ms 512 KB Output is correct
34 Correct 151 ms 544 KB Output is correct
35 Correct 152 ms 512 KB Output is correct
36 Correct 152 ms 544 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 512 KB Output is correct
2 Correct 5 ms 512 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 4 ms 512 KB Output is correct
5 Correct 10 ms 512 KB Output is correct
6 Correct 7 ms 512 KB Output is correct
7 Correct 6 ms 512 KB Output is correct
8 Correct 11 ms 512 KB Output is correct
9 Correct 9 ms 512 KB Output is correct
10 Correct 28 ms 512 KB Output is correct
11 Correct 29 ms 512 KB Output is correct
12 Correct 28 ms 512 KB Output is correct
13 Correct 24 ms 512 KB Output is correct
14 Correct 26 ms 512 KB Output is correct
15 Correct 26 ms 632 KB Output is correct
16 Correct 28 ms 512 KB Output is correct
17 Correct 16 ms 512 KB Output is correct
18 Correct 21 ms 512 KB Output is correct
19 Correct 24 ms 512 KB Output is correct
20 Correct 28 ms 512 KB Output is correct
21 Correct 77 ms 512 KB Output is correct
22 Correct 98 ms 632 KB Output is correct
23 Correct 58 ms 512 KB Output is correct
24 Correct 140 ms 512 KB Output is correct
25 Correct 144 ms 632 KB Output is correct
26 Correct 153 ms 512 KB Output is correct
27 Correct 152 ms 512 KB Output is correct
28 Correct 153 ms 632 KB Output is correct
29 Correct 154 ms 512 KB Output is correct
30 Correct 156 ms 632 KB Output is correct
31 Correct 154 ms 512 KB Output is correct
32 Correct 153 ms 512 KB Output is correct
33 Correct 154 ms 512 KB Output is correct
34 Correct 151 ms 544 KB Output is correct
35 Correct 152 ms 512 KB Output is correct
36 Correct 152 ms 544 KB Output is correct
37 Correct 491 ms 632 KB Output is correct
38 Correct 482 ms 664 KB Output is correct
39 Correct 715 ms 632 KB Output is correct
40 Correct 821 ms 632 KB Output is correct
41 Correct 821 ms 632 KB Output is correct
42 Correct 713 ms 632 KB Output is correct
43 Correct 682 ms 760 KB Output is correct
44 Correct 710 ms 672 KB Output is correct
45 Correct 713 ms 632 KB Output is correct
46 Correct 811 ms 512 KB Output is correct
47 Correct 717 ms 540 KB Output is correct
48 Correct 749 ms 540 KB Output is correct
49 Correct 718 ms 632 KB Output is correct
50 Correct 724 ms 636 KB Output is correct
51 Correct 3 ms 384 KB Output is correct
52 Correct 844 ms 672 KB Output is correct

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 512 KB Output is correct
2 Correct 5 ms 512 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 4 ms 512 KB Output is correct
5 Correct 10 ms 512 KB Output is correct
6 Correct 7 ms 512 KB Output is correct
7 Correct 6 ms 512 KB Output is correct
8 Correct 11 ms 512 KB Output is correct
9 Correct 9 ms 512 KB Output is correct
10 Correct 28 ms 512 KB Output is correct
11 Correct 29 ms 512 KB Output is correct
12 Correct 28 ms 512 KB Output is correct
13 Correct 24 ms 512 KB Output is correct
14 Correct 26 ms 512 KB Output is correct
15 Correct 26 ms 632 KB Output is correct
16 Correct 28 ms 512 KB Output is correct
17 Correct 16 ms 512 KB Output is correct
18 Correct 21 ms 512 KB Output is correct
19 Correct 24 ms 512 KB Output is correct
20 Correct 28 ms 512 KB Output is correct
21 Correct 77 ms 512 KB Output is correct
22 Correct 98 ms 632 KB Output is correct
23 Correct 58 ms 512 KB Output is correct
24 Correct 140 ms 512 KB Output is correct
25 Correct 144 ms 632 KB Output is correct
26 Correct 153 ms 512 KB Output is correct
27 Correct 152 ms 512 KB Output is correct
28 Correct 153 ms 632 KB Output is correct
29 Correct 154 ms 512 KB Output is correct
30 Correct 156 ms 632 KB Output is correct
31 Correct 154 ms 512 KB Output is correct
32 Correct 153 ms 512 KB Output is correct
33 Correct 154 ms 512 KB Output is correct
34 Correct 151 ms 544 KB Output is correct
35 Correct 152 ms 512 KB Output is correct
36 Correct 152 ms 544 KB Output is correct
37 Correct 491 ms 632 KB Output is correct
38 Correct 482 ms 664 KB Output is correct
39 Correct 715 ms 632 KB Output is correct
40 Correct 821 ms 632 KB Output is correct
41 Correct 821 ms 632 KB Output is correct
42 Correct 713 ms 632 KB Output is correct
43 Correct 682 ms 760 KB Output is correct
44 Correct 710 ms 672 KB Output is correct
45 Correct 713 ms 632 KB Output is correct
46 Correct 811 ms 512 KB Output is correct
47 Correct 717 ms 540 KB Output is correct
48 Correct 749 ms 540 KB Output is correct
49 Correct 718 ms 632 KB Output is correct
50 Correct 724 ms 636 KB Output is correct
51 Correct 3 ms 384 KB Output is correct
52 Correct 844 ms 672 KB Output is correct
53 Execution timed out 1024 ms 760 KB Time limit exceeded
54 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 512 KB Output is correct
2 Correct 5 ms 512 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 4 ms 512 KB Output is correct
5 Correct 10 ms 512 KB Output is correct
6 Correct 7 ms 512 KB Output is correct
7 Correct 6 ms 512 KB Output is correct
8 Correct 11 ms 512 KB Output is correct
9 Correct 9 ms 512 KB Output is correct
10 Correct 28 ms 512 KB Output is correct
11 Correct 29 ms 512 KB Output is correct
12 Correct 28 ms 512 KB Output is correct
13 Correct 24 ms 512 KB Output is correct
14 Correct 26 ms 512 KB Output is correct
15 Correct 26 ms 632 KB Output is correct
16 Correct 28 ms 512 KB Output is correct
17 Correct 16 ms 512 KB Output is correct
18 Correct 21 ms 512 KB Output is correct
19 Correct 24 ms 512 KB Output is correct
20 Correct 28 ms 512 KB Output is correct
21 Correct 77 ms 512 KB Output is correct
22 Correct 98 ms 632 KB Output is correct
23 Correct 58 ms 512 KB Output is correct
24 Correct 140 ms 512 KB Output is correct
25 Correct 144 ms 632 KB Output is correct
26 Correct 153 ms 512 KB Output is correct
27 Correct 152 ms 512 KB Output is correct
28 Correct 153 ms 632 KB Output is correct
29 Correct 154 ms 512 KB Output is correct
30 Correct 156 ms 632 KB Output is correct
31 Correct 154 ms 512 KB Output is correct
32 Correct 153 ms 512 KB Output is correct
33 Correct 154 ms 512 KB Output is correct
34 Correct 151 ms 544 KB Output is correct
35 Correct 152 ms 512 KB Output is correct
36 Correct 152 ms 544 KB Output is correct
37 Correct 491 ms 632 KB Output is correct
38 Correct 482 ms 664 KB Output is correct
39 Correct 715 ms 632 KB Output is correct
40 Correct 821 ms 632 KB Output is correct
41 Correct 821 ms 632 KB Output is correct
42 Correct 713 ms 632 KB Output is correct
43 Correct 682 ms 760 KB Output is correct
44 Correct 710 ms 672 KB Output is correct
45 Correct 713 ms 632 KB Output is correct
46 Correct 811 ms 512 KB Output is correct
47 Correct 717 ms 540 KB Output is correct
48 Correct 749 ms 540 KB Output is correct
49 Correct 718 ms 632 KB Output is correct
50 Correct 724 ms 636 KB Output is correct
51 Correct 3 ms 384 KB Output is correct
52 Correct 844 ms 672 KB Output is correct
53 Execution timed out 1024 ms 760 KB Time limit exceeded
54 Halted 0 ms 0 KB -