답안 #337573

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
337573	2020-12-21T06:31:20 Z	boykut	Bootfall (IZhO17_bootfall)	C++14	100 / 100	406 ms	3692 KB

bootfall

#include <bits/stdc++.h>

using namespace std;

const int MAXN = 500 * 500 + 1;
int dp[MAXN], used[MAXN], a[500], sum;

signed main() {
   ios::sync_with_stdio(0);
   cin.tie(0);
   
   int n;
   cin >> n;
   
   dp[0] = 1;
   for (int i = 0; i < n; i++) {
      cin >> a[i];
      for (int x = sum; x >= 0; x--) {
         dp[x + a[i]] += dp[x];
      }
      sum += a[i];
   }
   
   if (sum % 2 == 1 || dp[sum / 2] == 0) {
      cout << "0\n";
   } else {
      fill (used, used + MAXN, 1);
      
      for (int i = 0; i < n; i++) {
         sum -= a[i];
         for (int x = 0; x <= sum; x++) {
            dp[x + a[i]] -= dp[x];
         }
         
         for (int half = 1; half < MAXN; half++) {
            if ((sum + half) % 2 == 1 || dp[(sum + half) / 2] == 0)
               used[half] = 0;
         }
         
         for (int x = sum; x >= 0; x--) {
            dp[x + a[i]] += dp[x];
         }
         sum += a[i];
      }
      
      vector <int> ans;
      
      for (int half = 1; half < MAXN; half++) {
         if (used[half])
            ans.push_back(half);
      }
      
      cout << ans.size() << '\n';
      for (int i = 0; i < ans.size(); i++)
         cout << ans[i] << ' ';
      cout << '\n';
   }
   return 0;
}

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:54:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |       for (int i = 0; i < ans.size(); i++)
      |                       ~~^~~~~~~~~~~~

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	1260 KB	Output is correct
2	Correct	5 ms	1260 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	4 ms	1260 KB	Output is correct
5	Correct	7 ms	1280 KB	Output is correct
6	Correct	5 ms	1260 KB	Output is correct
7	Correct	4 ms	1260 KB	Output is correct
8	Correct	8 ms	1388 KB	Output is correct
9	Correct	6 ms	1260 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	1260 KB	Output is correct
2	Correct	5 ms	1260 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	4 ms	1260 KB	Output is correct
5	Correct	7 ms	1280 KB	Output is correct
6	Correct	5 ms	1260 KB	Output is correct
7	Correct	4 ms	1260 KB	Output is correct
8	Correct	8 ms	1388 KB	Output is correct
9	Correct	6 ms	1260 KB	Output is correct
10	Correct	13 ms	1260 KB	Output is correct
11	Correct	14 ms	1388 KB	Output is correct
12	Correct	16 ms	1260 KB	Output is correct
13	Correct	12 ms	1280 KB	Output is correct
14	Correct	13 ms	1260 KB	Output is correct
15	Correct	13 ms	1260 KB	Output is correct
16	Correct	15 ms	1260 KB	Output is correct
17	Correct	9 ms	1260 KB	Output is correct
18	Correct	11 ms	1260 KB	Output is correct
19	Correct	12 ms	1260 KB	Output is correct
20	Correct	16 ms	1260 KB	Output is correct

Subtask #3
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	1260 KB	Output is correct
2	Correct	5 ms	1260 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	4 ms	1260 KB	Output is correct
5	Correct	7 ms	1280 KB	Output is correct
6	Correct	5 ms	1260 KB	Output is correct
7	Correct	4 ms	1260 KB	Output is correct
8	Correct	8 ms	1388 KB	Output is correct
9	Correct	6 ms	1260 KB	Output is correct
10	Correct	13 ms	1260 KB	Output is correct
11	Correct	14 ms	1388 KB	Output is correct
12	Correct	16 ms	1260 KB	Output is correct
13	Correct	12 ms	1280 KB	Output is correct
14	Correct	13 ms	1260 KB	Output is correct
15	Correct	13 ms	1260 KB	Output is correct
16	Correct	15 ms	1260 KB	Output is correct
17	Correct	9 ms	1260 KB	Output is correct
18	Correct	11 ms	1260 KB	Output is correct
19	Correct	12 ms	1260 KB	Output is correct
20	Correct	16 ms	1260 KB	Output is correct
21	Correct	27 ms	1388 KB	Output is correct
22	Correct	31 ms	1388 KB	Output is correct
23	Correct	21 ms	1388 KB	Output is correct
24	Correct	38 ms	1388 KB	Output is correct
25	Correct	42 ms	1388 KB	Output is correct
26	Correct	42 ms	1388 KB	Output is correct
27	Correct	41 ms	1516 KB	Output is correct
28	Correct	41 ms	1388 KB	Output is correct
29	Correct	41 ms	1388 KB	Output is correct
30	Correct	41 ms	1388 KB	Output is correct
31	Correct	44 ms	1516 KB	Output is correct
32	Correct	41 ms	1388 KB	Output is correct
33	Correct	41 ms	1388 KB	Output is correct
34	Correct	43 ms	1408 KB	Output is correct
35	Correct	42 ms	1388 KB	Output is correct
36	Correct	41 ms	1388 KB	Output is correct

Subtask #4
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	1260 KB	Output is correct
2	Correct	5 ms	1260 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	4 ms	1260 KB	Output is correct
5	Correct	7 ms	1280 KB	Output is correct
6	Correct	5 ms	1260 KB	Output is correct
7	Correct	4 ms	1260 KB	Output is correct
8	Correct	8 ms	1388 KB	Output is correct
9	Correct	6 ms	1260 KB	Output is correct
10	Correct	13 ms	1260 KB	Output is correct
11	Correct	14 ms	1388 KB	Output is correct
12	Correct	16 ms	1260 KB	Output is correct
13	Correct	12 ms	1280 KB	Output is correct
14	Correct	13 ms	1260 KB	Output is correct
15	Correct	13 ms	1260 KB	Output is correct
16	Correct	15 ms	1260 KB	Output is correct
17	Correct	9 ms	1260 KB	Output is correct
18	Correct	11 ms	1260 KB	Output is correct
19	Correct	12 ms	1260 KB	Output is correct
20	Correct	16 ms	1260 KB	Output is correct
21	Correct	27 ms	1388 KB	Output is correct
22	Correct	31 ms	1388 KB	Output is correct
23	Correct	21 ms	1388 KB	Output is correct
24	Correct	38 ms	1388 KB	Output is correct
25	Correct	42 ms	1388 KB	Output is correct
26	Correct	42 ms	1388 KB	Output is correct
27	Correct	41 ms	1516 KB	Output is correct
28	Correct	41 ms	1388 KB	Output is correct
29	Correct	41 ms	1388 KB	Output is correct
30	Correct	41 ms	1388 KB	Output is correct
31	Correct	44 ms	1516 KB	Output is correct
32	Correct	41 ms	1388 KB	Output is correct
33	Correct	41 ms	1388 KB	Output is correct
34	Correct	43 ms	1408 KB	Output is correct
35	Correct	42 ms	1388 KB	Output is correct
36	Correct	41 ms	1388 KB	Output is correct
37	Correct	85 ms	1516 KB	Output is correct
38	Correct	86 ms	1516 KB	Output is correct
39	Correct	116 ms	1516 KB	Output is correct
40	Correct	120 ms	1760 KB	Output is correct
41	Correct	129 ms	1644 KB	Output is correct
42	Correct	113 ms	1648 KB	Output is correct
43	Correct	120 ms	1912 KB	Output is correct
44	Correct	121 ms	1900 KB	Output is correct
45	Correct	124 ms	1920 KB	Output is correct
46	Correct	119 ms	1388 KB	Output is correct
47	Correct	113 ms	1644 KB	Output is correct
48	Correct	123 ms	1900 KB	Output is correct
49	Correct	121 ms	1644 KB	Output is correct
50	Correct	114 ms	1636 KB	Output is correct
51	Correct	3 ms	492 KB	Output is correct
52	Correct	139 ms	2036 KB	Output is correct

Subtask #5
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	1260 KB	Output is correct
2	Correct	5 ms	1260 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	4 ms	1260 KB	Output is correct
5	Correct	7 ms	1280 KB	Output is correct
6	Correct	5 ms	1260 KB	Output is correct
7	Correct	4 ms	1260 KB	Output is correct
8	Correct	8 ms	1388 KB	Output is correct
9	Correct	6 ms	1260 KB	Output is correct
10	Correct	13 ms	1260 KB	Output is correct
11	Correct	14 ms	1388 KB	Output is correct
12	Correct	16 ms	1260 KB	Output is correct
13	Correct	12 ms	1280 KB	Output is correct
14	Correct	13 ms	1260 KB	Output is correct
15	Correct	13 ms	1260 KB	Output is correct
16	Correct	15 ms	1260 KB	Output is correct
17	Correct	9 ms	1260 KB	Output is correct
18	Correct	11 ms	1260 KB	Output is correct
19	Correct	12 ms	1260 KB	Output is correct
20	Correct	16 ms	1260 KB	Output is correct
21	Correct	27 ms	1388 KB	Output is correct
22	Correct	31 ms	1388 KB	Output is correct
23	Correct	21 ms	1388 KB	Output is correct
24	Correct	38 ms	1388 KB	Output is correct
25	Correct	42 ms	1388 KB	Output is correct
26	Correct	42 ms	1388 KB	Output is correct
27	Correct	41 ms	1516 KB	Output is correct
28	Correct	41 ms	1388 KB	Output is correct
29	Correct	41 ms	1388 KB	Output is correct
30	Correct	41 ms	1388 KB	Output is correct
31	Correct	44 ms	1516 KB	Output is correct
32	Correct	41 ms	1388 KB	Output is correct
33	Correct	41 ms	1388 KB	Output is correct
34	Correct	43 ms	1408 KB	Output is correct
35	Correct	42 ms	1388 KB	Output is correct
36	Correct	41 ms	1388 KB	Output is correct
37	Correct	85 ms	1516 KB	Output is correct
38	Correct	86 ms	1516 KB	Output is correct
39	Correct	116 ms	1516 KB	Output is correct
40	Correct	120 ms	1760 KB	Output is correct
41	Correct	129 ms	1644 KB	Output is correct
42	Correct	113 ms	1648 KB	Output is correct
43	Correct	120 ms	1912 KB	Output is correct
44	Correct	121 ms	1900 KB	Output is correct
45	Correct	124 ms	1920 KB	Output is correct
46	Correct	119 ms	1388 KB	Output is correct
47	Correct	113 ms	1644 KB	Output is correct
48	Correct	123 ms	1900 KB	Output is correct
49	Correct	121 ms	1644 KB	Output is correct
50	Correct	114 ms	1636 KB	Output is correct
51	Correct	3 ms	492 KB	Output is correct
52	Correct	139 ms	2036 KB	Output is correct
53	Correct	140 ms	1900 KB	Output is correct
54	Correct	170 ms	1900 KB	Output is correct
55	Correct	206 ms	2576 KB	Output is correct
56	Correct	148 ms	1900 KB	Output is correct
57	Correct	214 ms	2544 KB	Output is correct
58	Correct	173 ms	2048 KB	Output is correct
59	Correct	185 ms	2160 KB	Output is correct
60	Correct	6 ms	620 KB	Output is correct
61	Correct	189 ms	2160 KB	Output is correct
62	Correct	181 ms	2288 KB	Output is correct
63	Correct	184 ms	2416 KB	Output is correct
64	Correct	178 ms	2288 KB	Output is correct
65	Correct	147 ms	1644 KB	Output is correct
66	Correct	145 ms	1644 KB	Output is correct

Subtask #6
35.0 / 35.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	1260 KB	Output is correct
2	Correct	5 ms	1260 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	4 ms	1260 KB	Output is correct
5	Correct	7 ms	1280 KB	Output is correct
6	Correct	5 ms	1260 KB	Output is correct
7	Correct	4 ms	1260 KB	Output is correct
8	Correct	8 ms	1388 KB	Output is correct
9	Correct	6 ms	1260 KB	Output is correct
10	Correct	13 ms	1260 KB	Output is correct
11	Correct	14 ms	1388 KB	Output is correct
12	Correct	16 ms	1260 KB	Output is correct
13	Correct	12 ms	1280 KB	Output is correct
14	Correct	13 ms	1260 KB	Output is correct
15	Correct	13 ms	1260 KB	Output is correct
16	Correct	15 ms	1260 KB	Output is correct
17	Correct	9 ms	1260 KB	Output is correct
18	Correct	11 ms	1260 KB	Output is correct
19	Correct	12 ms	1260 KB	Output is correct
20	Correct	16 ms	1260 KB	Output is correct
21	Correct	27 ms	1388 KB	Output is correct
22	Correct	31 ms	1388 KB	Output is correct
23	Correct	21 ms	1388 KB	Output is correct
24	Correct	38 ms	1388 KB	Output is correct
25	Correct	42 ms	1388 KB	Output is correct
26	Correct	42 ms	1388 KB	Output is correct
27	Correct	41 ms	1516 KB	Output is correct
28	Correct	41 ms	1388 KB	Output is correct
29	Correct	41 ms	1388 KB	Output is correct
30	Correct	41 ms	1388 KB	Output is correct
31	Correct	44 ms	1516 KB	Output is correct
32	Correct	41 ms	1388 KB	Output is correct
33	Correct	41 ms	1388 KB	Output is correct
34	Correct	43 ms	1408 KB	Output is correct
35	Correct	42 ms	1388 KB	Output is correct
36	Correct	41 ms	1388 KB	Output is correct
37	Correct	85 ms	1516 KB	Output is correct
38	Correct	86 ms	1516 KB	Output is correct
39	Correct	116 ms	1516 KB	Output is correct
40	Correct	120 ms	1760 KB	Output is correct
41	Correct	129 ms	1644 KB	Output is correct
42	Correct	113 ms	1648 KB	Output is correct
43	Correct	120 ms	1912 KB	Output is correct
44	Correct	121 ms	1900 KB	Output is correct
45	Correct	124 ms	1920 KB	Output is correct
46	Correct	119 ms	1388 KB	Output is correct
47	Correct	113 ms	1644 KB	Output is correct
48	Correct	123 ms	1900 KB	Output is correct
49	Correct	121 ms	1644 KB	Output is correct
50	Correct	114 ms	1636 KB	Output is correct
51	Correct	3 ms	492 KB	Output is correct
52	Correct	139 ms	2036 KB	Output is correct
53	Correct	140 ms	1900 KB	Output is correct
54	Correct	170 ms	1900 KB	Output is correct
55	Correct	206 ms	2576 KB	Output is correct
56	Correct	148 ms	1900 KB	Output is correct
57	Correct	214 ms	2544 KB	Output is correct
58	Correct	173 ms	2048 KB	Output is correct
59	Correct	185 ms	2160 KB	Output is correct
60	Correct	6 ms	620 KB	Output is correct
61	Correct	189 ms	2160 KB	Output is correct
62	Correct	181 ms	2288 KB	Output is correct
63	Correct	184 ms	2416 KB	Output is correct
64	Correct	178 ms	2288 KB	Output is correct
65	Correct	147 ms	1644 KB	Output is correct
66	Correct	145 ms	1644 KB	Output is correct
67	Correct	209 ms	2288 KB	Output is correct
68	Correct	17 ms	876 KB	Output is correct
69	Correct	379 ms	3356 KB	Output is correct
70	Correct	309 ms	2672 KB	Output is correct
71	Correct	304 ms	2672 KB	Output is correct
72	Correct	300 ms	1772 KB	Output is correct
73	Correct	296 ms	1900 KB	Output is correct
74	Correct	393 ms	3436 KB	Output is correct
75	Correct	346 ms	3052 KB	Output is correct
76	Correct	406 ms	3436 KB	Output is correct
77	Correct	400 ms	3692 KB	Output is correct

답안 #337573

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