답안 #335546

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
335546	2020-12-13T03:46:01 Z	luciocf	Bootfall (IZhO17_bootfall)	C++14	100 / 100	272 ms	17260 KB

bootfall

#include <bits/stdc++.h>

using namespace std;

const int maxn = 510;
const int maxs = 250010;

int a[maxn];
int s;

bitset<maxs> aux, bs[maxn];

void solve(int l, int r)
{
	if (l > r) return;

	int mid = (l+r)>>1;

	bitset<maxs> ant = aux;

	for (int i = l; i <= mid; i++)
		aux |= (aux<<a[i]);

	solve(mid+1, r);

	aux = ant;

	for (int i = r; i >= mid; i--)
		aux |= (aux<<a[i]);

	solve(l, mid-1);

	aux = ant;
	s -= a[mid];

	for (int i = l; i < mid; i++)
		aux |= (aux<<a[i]);

	for (int i = r; i > mid; i--)
		aux |= (aux<<a[i]);

	for (int i = (s+1)/2; i < maxs; i++)
		if (aux[i])
			bs[mid][2*i-s] = 1; 

	aux = ant;
	s += a[mid];
}

int main(void)
{
	int n;
	scanf("%d", &n);

	for (int i = 1; i <= n; i++)
	{
		scanf("%d", &a[i]);
		s += a[i];
	}

	aux[0] = 1;

	for (int i = 1; i <= n; i++)
		aux |= (aux<<a[i]);

	if (s&1 || !aux[s/2])
	{
		printf("0\n");
		return 0;
	}

	aux.reset();
	aux[0] = 1;
	solve(1, n);

	bitset<maxs> ans;

	for (int i = 1; i < maxs; i++)
		ans[i] = 1;

	for (int i = 1; i <= n; i++)
		ans &= bs[i];

	int tot = 0;
	for (int i = 1; i < maxs; i++)
		if (ans[i])
			++tot;

	printf("%d\n", tot);
	for (int i = 1; i < maxs; i++)
		if (ans[i])
			printf("%d ", i);
	printf("\n");
}

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:53:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   53 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
bootfall.cpp:57:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   57 |   scanf("%d", &a[i]);
      |   ~~~~~^~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	876 KB	Output is correct
2	Correct	4 ms	748 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	3 ms	748 KB	Output is correct
5	Correct	9 ms	876 KB	Output is correct
6	Correct	5 ms	876 KB	Output is correct
7	Correct	5 ms	748 KB	Output is correct
8	Correct	8 ms	876 KB	Output is correct
9	Correct	7 ms	1004 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	876 KB	Output is correct
2	Correct	4 ms	748 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	3 ms	748 KB	Output is correct
5	Correct	9 ms	876 KB	Output is correct
6	Correct	5 ms	876 KB	Output is correct
7	Correct	5 ms	748 KB	Output is correct
8	Correct	8 ms	876 KB	Output is correct
9	Correct	7 ms	1004 KB	Output is correct
10	Correct	16 ms	1004 KB	Output is correct
11	Correct	16 ms	1004 KB	Output is correct
12	Correct	17 ms	1004 KB	Output is correct
13	Correct	14 ms	1004 KB	Output is correct
14	Correct	15 ms	1004 KB	Output is correct
15	Correct	19 ms	1004 KB	Output is correct
16	Correct	16 ms	1004 KB	Output is correct
17	Correct	10 ms	1004 KB	Output is correct
18	Correct	17 ms	1004 KB	Output is correct
19	Correct	16 ms	1132 KB	Output is correct
20	Correct	17 ms	1004 KB	Output is correct

Subtask #3
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	876 KB	Output is correct
2	Correct	4 ms	748 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	3 ms	748 KB	Output is correct
5	Correct	9 ms	876 KB	Output is correct
6	Correct	5 ms	876 KB	Output is correct
7	Correct	5 ms	748 KB	Output is correct
8	Correct	8 ms	876 KB	Output is correct
9	Correct	7 ms	1004 KB	Output is correct
10	Correct	16 ms	1004 KB	Output is correct
11	Correct	16 ms	1004 KB	Output is correct
12	Correct	17 ms	1004 KB	Output is correct
13	Correct	14 ms	1004 KB	Output is correct
14	Correct	15 ms	1004 KB	Output is correct
15	Correct	19 ms	1004 KB	Output is correct
16	Correct	16 ms	1004 KB	Output is correct
17	Correct	10 ms	1004 KB	Output is correct
18	Correct	17 ms	1004 KB	Output is correct
19	Correct	16 ms	1132 KB	Output is correct
20	Correct	17 ms	1004 KB	Output is correct
21	Correct	34 ms	1388 KB	Output is correct
22	Correct	39 ms	1516 KB	Output is correct
23	Correct	26 ms	1132 KB	Output is correct
24	Correct	55 ms	1664 KB	Output is correct
25	Correct	54 ms	1516 KB	Output is correct
26	Correct	52 ms	1536 KB	Output is correct
27	Correct	52 ms	1516 KB	Output is correct
28	Correct	52 ms	1516 KB	Output is correct
29	Correct	59 ms	1644 KB	Output is correct
30	Correct	53 ms	1644 KB	Output is correct
31	Correct	53 ms	1516 KB	Output is correct
32	Correct	53 ms	1516 KB	Output is correct
33	Correct	52 ms	1644 KB	Output is correct
34	Correct	60 ms	1644 KB	Output is correct
35	Correct	52 ms	1600 KB	Output is correct
36	Correct	54 ms	1540 KB	Output is correct

Subtask #4
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	876 KB	Output is correct
2	Correct	4 ms	748 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	3 ms	748 KB	Output is correct
5	Correct	9 ms	876 KB	Output is correct
6	Correct	5 ms	876 KB	Output is correct
7	Correct	5 ms	748 KB	Output is correct
8	Correct	8 ms	876 KB	Output is correct
9	Correct	7 ms	1004 KB	Output is correct
10	Correct	16 ms	1004 KB	Output is correct
11	Correct	16 ms	1004 KB	Output is correct
12	Correct	17 ms	1004 KB	Output is correct
13	Correct	14 ms	1004 KB	Output is correct
14	Correct	15 ms	1004 KB	Output is correct
15	Correct	19 ms	1004 KB	Output is correct
16	Correct	16 ms	1004 KB	Output is correct
17	Correct	10 ms	1004 KB	Output is correct
18	Correct	17 ms	1004 KB	Output is correct
19	Correct	16 ms	1132 KB	Output is correct
20	Correct	17 ms	1004 KB	Output is correct
21	Correct	34 ms	1388 KB	Output is correct
22	Correct	39 ms	1516 KB	Output is correct
23	Correct	26 ms	1132 KB	Output is correct
24	Correct	55 ms	1664 KB	Output is correct
25	Correct	54 ms	1516 KB	Output is correct
26	Correct	52 ms	1536 KB	Output is correct
27	Correct	52 ms	1516 KB	Output is correct
28	Correct	52 ms	1516 KB	Output is correct
29	Correct	59 ms	1644 KB	Output is correct
30	Correct	53 ms	1644 KB	Output is correct
31	Correct	53 ms	1516 KB	Output is correct
32	Correct	53 ms	1516 KB	Output is correct
33	Correct	52 ms	1644 KB	Output is correct
34	Correct	60 ms	1644 KB	Output is correct
35	Correct	52 ms	1600 KB	Output is correct
36	Correct	54 ms	1540 KB	Output is correct
37	Correct	116 ms	2540 KB	Output is correct
38	Correct	109 ms	2540 KB	Output is correct
39	Correct	124 ms	4076 KB	Output is correct
40	Correct	149 ms	3436 KB	Output is correct
41	Correct	131 ms	4784 KB	Output is correct
42	Correct	134 ms	3180 KB	Output is correct
43	Correct	157 ms	3948 KB	Output is correct
44	Correct	133 ms	4120 KB	Output is correct
45	Correct	135 ms	4116 KB	Output is correct
46	Correct	141 ms	3308 KB	Output is correct
47	Correct	139 ms	3180 KB	Output is correct
48	Correct	133 ms	4076 KB	Output is correct
49	Correct	130 ms	4076 KB	Output is correct
50	Correct	138 ms	3308 KB	Output is correct
51	Correct	3 ms	364 KB	Output is correct
52	Correct	144 ms	4800 KB	Output is correct

Subtask #5
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	876 KB	Output is correct
2	Correct	4 ms	748 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	3 ms	748 KB	Output is correct
5	Correct	9 ms	876 KB	Output is correct
6	Correct	5 ms	876 KB	Output is correct
7	Correct	5 ms	748 KB	Output is correct
8	Correct	8 ms	876 KB	Output is correct
9	Correct	7 ms	1004 KB	Output is correct
10	Correct	16 ms	1004 KB	Output is correct
11	Correct	16 ms	1004 KB	Output is correct
12	Correct	17 ms	1004 KB	Output is correct
13	Correct	14 ms	1004 KB	Output is correct
14	Correct	15 ms	1004 KB	Output is correct
15	Correct	19 ms	1004 KB	Output is correct
16	Correct	16 ms	1004 KB	Output is correct
17	Correct	10 ms	1004 KB	Output is correct
18	Correct	17 ms	1004 KB	Output is correct
19	Correct	16 ms	1132 KB	Output is correct
20	Correct	17 ms	1004 KB	Output is correct
21	Correct	34 ms	1388 KB	Output is correct
22	Correct	39 ms	1516 KB	Output is correct
23	Correct	26 ms	1132 KB	Output is correct
24	Correct	55 ms	1664 KB	Output is correct
25	Correct	54 ms	1516 KB	Output is correct
26	Correct	52 ms	1536 KB	Output is correct
27	Correct	52 ms	1516 KB	Output is correct
28	Correct	52 ms	1516 KB	Output is correct
29	Correct	59 ms	1644 KB	Output is correct
30	Correct	53 ms	1644 KB	Output is correct
31	Correct	53 ms	1516 KB	Output is correct
32	Correct	53 ms	1516 KB	Output is correct
33	Correct	52 ms	1644 KB	Output is correct
34	Correct	60 ms	1644 KB	Output is correct
35	Correct	52 ms	1600 KB	Output is correct
36	Correct	54 ms	1540 KB	Output is correct
37	Correct	116 ms	2540 KB	Output is correct
38	Correct	109 ms	2540 KB	Output is correct
39	Correct	124 ms	4076 KB	Output is correct
40	Correct	149 ms	3436 KB	Output is correct
41	Correct	131 ms	4784 KB	Output is correct
42	Correct	134 ms	3180 KB	Output is correct
43	Correct	157 ms	3948 KB	Output is correct
44	Correct	133 ms	4120 KB	Output is correct
45	Correct	135 ms	4116 KB	Output is correct
46	Correct	141 ms	3308 KB	Output is correct
47	Correct	139 ms	3180 KB	Output is correct
48	Correct	133 ms	4076 KB	Output is correct
49	Correct	130 ms	4076 KB	Output is correct
50	Correct	138 ms	3308 KB	Output is correct
51	Correct	3 ms	364 KB	Output is correct
52	Correct	144 ms	4800 KB	Output is correct
53	Correct	168 ms	4292 KB	Output is correct
54	Correct	192 ms	5228 KB	Output is correct
55	Correct	189 ms	7704 KB	Output is correct
56	Correct	167 ms	4716 KB	Output is correct
57	Correct	235 ms	7956 KB	Output is correct
58	Correct	193 ms	5484 KB	Output is correct
59	Correct	195 ms	6252 KB	Output is correct
60	Correct	4 ms	364 KB	Output is correct
61	Correct	189 ms	6508 KB	Output is correct
62	Correct	173 ms	6508 KB	Output is correct
63	Correct	173 ms	6892 KB	Output is correct
64	Correct	172 ms	6764 KB	Output is correct
65	Correct	165 ms	4332 KB	Output is correct
66	Correct	158 ms	4588 KB	Output is correct

Subtask #6
35.0 / 35.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	876 KB	Output is correct
2	Correct	4 ms	748 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	3 ms	748 KB	Output is correct
5	Correct	9 ms	876 KB	Output is correct
6	Correct	5 ms	876 KB	Output is correct
7	Correct	5 ms	748 KB	Output is correct
8	Correct	8 ms	876 KB	Output is correct
9	Correct	7 ms	1004 KB	Output is correct
10	Correct	16 ms	1004 KB	Output is correct
11	Correct	16 ms	1004 KB	Output is correct
12	Correct	17 ms	1004 KB	Output is correct
13	Correct	14 ms	1004 KB	Output is correct
14	Correct	15 ms	1004 KB	Output is correct
15	Correct	19 ms	1004 KB	Output is correct
16	Correct	16 ms	1004 KB	Output is correct
17	Correct	10 ms	1004 KB	Output is correct
18	Correct	17 ms	1004 KB	Output is correct
19	Correct	16 ms	1132 KB	Output is correct
20	Correct	17 ms	1004 KB	Output is correct
21	Correct	34 ms	1388 KB	Output is correct
22	Correct	39 ms	1516 KB	Output is correct
23	Correct	26 ms	1132 KB	Output is correct
24	Correct	55 ms	1664 KB	Output is correct
25	Correct	54 ms	1516 KB	Output is correct
26	Correct	52 ms	1536 KB	Output is correct
27	Correct	52 ms	1516 KB	Output is correct
28	Correct	52 ms	1516 KB	Output is correct
29	Correct	59 ms	1644 KB	Output is correct
30	Correct	53 ms	1644 KB	Output is correct
31	Correct	53 ms	1516 KB	Output is correct
32	Correct	53 ms	1516 KB	Output is correct
33	Correct	52 ms	1644 KB	Output is correct
34	Correct	60 ms	1644 KB	Output is correct
35	Correct	52 ms	1600 KB	Output is correct
36	Correct	54 ms	1540 KB	Output is correct
37	Correct	116 ms	2540 KB	Output is correct
38	Correct	109 ms	2540 KB	Output is correct
39	Correct	124 ms	4076 KB	Output is correct
40	Correct	149 ms	3436 KB	Output is correct
41	Correct	131 ms	4784 KB	Output is correct
42	Correct	134 ms	3180 KB	Output is correct
43	Correct	157 ms	3948 KB	Output is correct
44	Correct	133 ms	4120 KB	Output is correct
45	Correct	135 ms	4116 KB	Output is correct
46	Correct	141 ms	3308 KB	Output is correct
47	Correct	139 ms	3180 KB	Output is correct
48	Correct	133 ms	4076 KB	Output is correct
49	Correct	130 ms	4076 KB	Output is correct
50	Correct	138 ms	3308 KB	Output is correct
51	Correct	3 ms	364 KB	Output is correct
52	Correct	144 ms	4800 KB	Output is correct
53	Correct	168 ms	4292 KB	Output is correct
54	Correct	192 ms	5228 KB	Output is correct
55	Correct	189 ms	7704 KB	Output is correct
56	Correct	167 ms	4716 KB	Output is correct
57	Correct	235 ms	7956 KB	Output is correct
58	Correct	193 ms	5484 KB	Output is correct
59	Correct	195 ms	6252 KB	Output is correct
60	Correct	4 ms	364 KB	Output is correct
61	Correct	189 ms	6508 KB	Output is correct
62	Correct	173 ms	6508 KB	Output is correct
63	Correct	173 ms	6892 KB	Output is correct
64	Correct	172 ms	6764 KB	Output is correct
65	Correct	165 ms	4332 KB	Output is correct
66	Correct	158 ms	4588 KB	Output is correct
67	Correct	218 ms	7020 KB	Output is correct
68	Correct	6 ms	364 KB	Output is correct
69	Correct	265 ms	16780 KB	Output is correct
70	Correct	272 ms	11500 KB	Output is correct
71	Correct	272 ms	11244 KB	Output is correct
72	Correct	268 ms	10860 KB	Output is correct
73	Correct	266 ms	10860 KB	Output is correct
74	Correct	269 ms	17132 KB	Output is correct
75	Correct	268 ms	14444 KB	Output is correct
76	Correct	257 ms	17260 KB	Output is correct
77	Correct	266 ms	17260 KB	Output is correct

답안 #335546

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 21.0 / 21.0

Subtask #6 35.0 / 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
21.0 / 21.0

Subtask #6
35.0 / 35.0