답안 #315308

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
315308	2020-10-22T10:14:42 Z	dolphingarlic	Bootfall (IZhO17_bootfall)	C++14	44 / 100	1000 ms	760 KB

bootfall

#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 < 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 < 250001; j += 2) good[j] = (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:26:26: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   26 |         for (int j = tot - a[i] & 1; j < 250001; j += 2) good[j] = (tot - a[i] + j >> 1) >= j && possible[(tot - a[i] + j >> 1) - j];
      |                      ~~~~^~~~~~
bootfall.cpp:26:80: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   26 |         for (int j = tot - a[i] & 1; j < 250001; j += 2) good[j] = (tot - a[i] + j >> 1) >= j && possible[(tot - a[i] + j >> 1) - j];
      |                                                                     ~~~~~~~~~~~^~~
bootfall.cpp:26:119: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   26 |         for (int j = tot - a[i] & 1; j < 250001; j += 2) good[j] = (tot - a[i] + j >> 1) >= 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

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	512 KB	Output is correct
2	Correct	3 ms	512 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	3 ms	512 KB	Output is correct
5	Correct	6 ms	512 KB	Output is correct
6	Correct	4 ms	512 KB	Output is correct
7	Correct	3 ms	512 KB	Output is correct
8	Correct	6 ms	512 KB	Output is correct
9	Correct	5 ms	512 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	512 KB	Output is correct
2	Correct	3 ms	512 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	3 ms	512 KB	Output is correct
5	Correct	6 ms	512 KB	Output is correct
6	Correct	4 ms	512 KB	Output is correct
7	Correct	3 ms	512 KB	Output is correct
8	Correct	6 ms	512 KB	Output is correct
9	Correct	5 ms	512 KB	Output is correct
10	Correct	17 ms	640 KB	Output is correct
11	Correct	18 ms	552 KB	Output is correct
12	Correct	17 ms	512 KB	Output is correct
13	Correct	14 ms	512 KB	Output is correct
14	Correct	16 ms	512 KB	Output is correct
15	Correct	15 ms	512 KB	Output is correct
16	Correct	17 ms	512 KB	Output is correct
17	Correct	9 ms	512 KB	Output is correct
18	Correct	13 ms	512 KB	Output is correct
19	Correct	14 ms	512 KB	Output is correct
20	Correct	17 ms	512 KB	Output is correct

Subtask #3
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	512 KB	Output is correct
2	Correct	3 ms	512 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	3 ms	512 KB	Output is correct
5	Correct	6 ms	512 KB	Output is correct
6	Correct	4 ms	512 KB	Output is correct
7	Correct	3 ms	512 KB	Output is correct
8	Correct	6 ms	512 KB	Output is correct
9	Correct	5 ms	512 KB	Output is correct
10	Correct	17 ms	640 KB	Output is correct
11	Correct	18 ms	552 KB	Output is correct
12	Correct	17 ms	512 KB	Output is correct
13	Correct	14 ms	512 KB	Output is correct
14	Correct	16 ms	512 KB	Output is correct
15	Correct	15 ms	512 KB	Output is correct
16	Correct	17 ms	512 KB	Output is correct
17	Correct	9 ms	512 KB	Output is correct
18	Correct	13 ms	512 KB	Output is correct
19	Correct	14 ms	512 KB	Output is correct
20	Correct	17 ms	512 KB	Output is correct
21	Correct	52 ms	632 KB	Output is correct
22	Correct	65 ms	512 KB	Output is correct
23	Correct	35 ms	512 KB	Output is correct
24	Correct	96 ms	544 KB	Output is correct
25	Correct	96 ms	512 KB	Output is correct
26	Correct	108 ms	512 KB	Output is correct
27	Correct	107 ms	612 KB	Output is correct
28	Correct	107 ms	512 KB	Output is correct
29	Correct	107 ms	512 KB	Output is correct
30	Correct	106 ms	512 KB	Output is correct
31	Correct	109 ms	632 KB	Output is correct
32	Correct	112 ms	512 KB	Output is correct
33	Correct	109 ms	636 KB	Output is correct
34	Correct	107 ms	548 KB	Output is correct
35	Correct	107 ms	632 KB	Output is correct
36	Correct	109 ms	512 KB	Output is correct

Subtask #4
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	512 KB	Output is correct
2	Correct	3 ms	512 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	3 ms	512 KB	Output is correct
5	Correct	6 ms	512 KB	Output is correct
6	Correct	4 ms	512 KB	Output is correct
7	Correct	3 ms	512 KB	Output is correct
8	Correct	6 ms	512 KB	Output is correct
9	Correct	5 ms	512 KB	Output is correct
10	Correct	17 ms	640 KB	Output is correct
11	Correct	18 ms	552 KB	Output is correct
12	Correct	17 ms	512 KB	Output is correct
13	Correct	14 ms	512 KB	Output is correct
14	Correct	16 ms	512 KB	Output is correct
15	Correct	15 ms	512 KB	Output is correct
16	Correct	17 ms	512 KB	Output is correct
17	Correct	9 ms	512 KB	Output is correct
18	Correct	13 ms	512 KB	Output is correct
19	Correct	14 ms	512 KB	Output is correct
20	Correct	17 ms	512 KB	Output is correct
21	Correct	52 ms	632 KB	Output is correct
22	Correct	65 ms	512 KB	Output is correct
23	Correct	35 ms	512 KB	Output is correct
24	Correct	96 ms	544 KB	Output is correct
25	Correct	96 ms	512 KB	Output is correct
26	Correct	108 ms	512 KB	Output is correct
27	Correct	107 ms	612 KB	Output is correct
28	Correct	107 ms	512 KB	Output is correct
29	Correct	107 ms	512 KB	Output is correct
30	Correct	106 ms	512 KB	Output is correct
31	Correct	109 ms	632 KB	Output is correct
32	Correct	112 ms	512 KB	Output is correct
33	Correct	109 ms	636 KB	Output is correct
34	Correct	107 ms	548 KB	Output is correct
35	Correct	107 ms	632 KB	Output is correct
36	Correct	109 ms	512 KB	Output is correct
37	Correct	364 ms	544 KB	Output is correct
38	Correct	370 ms	512 KB	Output is correct
39	Correct	545 ms	632 KB	Output is correct
40	Correct	636 ms	632 KB	Output is correct
41	Correct	615 ms	512 KB	Output is correct
42	Correct	555 ms	512 KB	Output is correct
43	Correct	532 ms	760 KB	Output is correct
44	Correct	548 ms	672 KB	Output is correct
45	Correct	554 ms	760 KB	Output is correct
46	Correct	634 ms	544 KB	Output is correct
47	Correct	549 ms	632 KB	Output is correct
48	Correct	554 ms	632 KB	Output is correct
49	Correct	576 ms	632 KB	Output is correct
50	Correct	559 ms	632 KB	Output is correct
51	Correct	2 ms	384 KB	Output is correct
52	Correct	635 ms	632 KB	Output is correct

Subtask #5
0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	512 KB	Output is correct
2	Correct	3 ms	512 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	3 ms	512 KB	Output is correct
5	Correct	6 ms	512 KB	Output is correct
6	Correct	4 ms	512 KB	Output is correct
7	Correct	3 ms	512 KB	Output is correct
8	Correct	6 ms	512 KB	Output is correct
9	Correct	5 ms	512 KB	Output is correct
10	Correct	17 ms	640 KB	Output is correct
11	Correct	18 ms	552 KB	Output is correct
12	Correct	17 ms	512 KB	Output is correct
13	Correct	14 ms	512 KB	Output is correct
14	Correct	16 ms	512 KB	Output is correct
15	Correct	15 ms	512 KB	Output is correct
16	Correct	17 ms	512 KB	Output is correct
17	Correct	9 ms	512 KB	Output is correct
18	Correct	13 ms	512 KB	Output is correct
19	Correct	14 ms	512 KB	Output is correct
20	Correct	17 ms	512 KB	Output is correct
21	Correct	52 ms	632 KB	Output is correct
22	Correct	65 ms	512 KB	Output is correct
23	Correct	35 ms	512 KB	Output is correct
24	Correct	96 ms	544 KB	Output is correct
25	Correct	96 ms	512 KB	Output is correct
26	Correct	108 ms	512 KB	Output is correct
27	Correct	107 ms	612 KB	Output is correct
28	Correct	107 ms	512 KB	Output is correct
29	Correct	107 ms	512 KB	Output is correct
30	Correct	106 ms	512 KB	Output is correct
31	Correct	109 ms	632 KB	Output is correct
32	Correct	112 ms	512 KB	Output is correct
33	Correct	109 ms	636 KB	Output is correct
34	Correct	107 ms	548 KB	Output is correct
35	Correct	107 ms	632 KB	Output is correct
36	Correct	109 ms	512 KB	Output is correct
37	Correct	364 ms	544 KB	Output is correct
38	Correct	370 ms	512 KB	Output is correct
39	Correct	545 ms	632 KB	Output is correct
40	Correct	636 ms	632 KB	Output is correct
41	Correct	615 ms	512 KB	Output is correct
42	Correct	555 ms	512 KB	Output is correct
43	Correct	532 ms	760 KB	Output is correct
44	Correct	548 ms	672 KB	Output is correct
45	Correct	554 ms	760 KB	Output is correct
46	Correct	634 ms	544 KB	Output is correct
47	Correct	549 ms	632 KB	Output is correct
48	Correct	554 ms	632 KB	Output is correct
49	Correct	576 ms	632 KB	Output is correct
50	Correct	559 ms	632 KB	Output is correct
51	Correct	2 ms	384 KB	Output is correct
52	Correct	635 ms	632 KB	Output is correct
53	Correct	777 ms	668 KB	Output is correct
54	Execution timed out	1037 ms	760 KB	Time limit exceeded
55	Halted	0 ms	0 KB	-

Subtask #6
0 / 35.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	512 KB	Output is correct
2	Correct	3 ms	512 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	3 ms	512 KB	Output is correct
5	Correct	6 ms	512 KB	Output is correct
6	Correct	4 ms	512 KB	Output is correct
7	Correct	3 ms	512 KB	Output is correct
8	Correct	6 ms	512 KB	Output is correct
9	Correct	5 ms	512 KB	Output is correct
10	Correct	17 ms	640 KB	Output is correct
11	Correct	18 ms	552 KB	Output is correct
12	Correct	17 ms	512 KB	Output is correct
13	Correct	14 ms	512 KB	Output is correct
14	Correct	16 ms	512 KB	Output is correct
15	Correct	15 ms	512 KB	Output is correct
16	Correct	17 ms	512 KB	Output is correct
17	Correct	9 ms	512 KB	Output is correct
18	Correct	13 ms	512 KB	Output is correct
19	Correct	14 ms	512 KB	Output is correct
20	Correct	17 ms	512 KB	Output is correct
21	Correct	52 ms	632 KB	Output is correct
22	Correct	65 ms	512 KB	Output is correct
23	Correct	35 ms	512 KB	Output is correct
24	Correct	96 ms	544 KB	Output is correct
25	Correct	96 ms	512 KB	Output is correct
26	Correct	108 ms	512 KB	Output is correct
27	Correct	107 ms	612 KB	Output is correct
28	Correct	107 ms	512 KB	Output is correct
29	Correct	107 ms	512 KB	Output is correct
30	Correct	106 ms	512 KB	Output is correct
31	Correct	109 ms	632 KB	Output is correct
32	Correct	112 ms	512 KB	Output is correct
33	Correct	109 ms	636 KB	Output is correct
34	Correct	107 ms	548 KB	Output is correct
35	Correct	107 ms	632 KB	Output is correct
36	Correct	109 ms	512 KB	Output is correct
37	Correct	364 ms	544 KB	Output is correct
38	Correct	370 ms	512 KB	Output is correct
39	Correct	545 ms	632 KB	Output is correct
40	Correct	636 ms	632 KB	Output is correct
41	Correct	615 ms	512 KB	Output is correct
42	Correct	555 ms	512 KB	Output is correct
43	Correct	532 ms	760 KB	Output is correct
44	Correct	548 ms	672 KB	Output is correct
45	Correct	554 ms	760 KB	Output is correct
46	Correct	634 ms	544 KB	Output is correct
47	Correct	549 ms	632 KB	Output is correct
48	Correct	554 ms	632 KB	Output is correct
49	Correct	576 ms	632 KB	Output is correct
50	Correct	559 ms	632 KB	Output is correct
51	Correct	2 ms	384 KB	Output is correct
52	Correct	635 ms	632 KB	Output is correct
53	Correct	777 ms	668 KB	Output is correct
54	Execution timed out	1037 ms	760 KB	Time limit exceeded
55	Halted	0 ms	0 KB	-

답안 #315308

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 7.0 / 7.0

Subtask #3 15.0 / 15.0

Subtask #4 16.0 / 16.0

Subtask #5 0 / 21.0

Subtask #6 0 / 35.0

Subtask #1
6.0 / 6.0

Subtask #2
7.0 / 7.0

Subtask #3
15.0 / 15.0

Subtask #4
16.0 / 16.0

Subtask #5
0 / 21.0

Subtask #6
0 / 35.0