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Submission #343642

# Submission time Handle Problem Language Result Execution time Memory
343642 2021-01-04T10:23:51 Z Kalashnikov Bootfall (IZhO17_bootfall) C++17
65 / 100
 1000 ms 7536 KB 
#include <bits/stdc++.h>
 
#define ios ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define file(s) if (fopen(s".in", "r")) freopen(s".in", "r", stdin), freopen(s".out", "w", stdout)
#define all(a) a.begin() , a.end()
#define F first
#define S second
 
using namespace std;
using ll = long long;
 
const int N = 500+5 , inf = 2e9 + 7;
const ll INF = 1e18 ,   mod = 1e9+7 , P = 6547;

int a[N];
int ord[500*260];

bitset<500*260> dp[N];


void solve() {
	int n;
	cin >> n;
	int sum = 0;
	for(int i = 1; i <= n; i ++) {
		cin >> a[i];
		sum += a[i];
	}
	set<int> st;
	for(int i = 0; i <= n; i ++) {
		for(int j = 1; j <= n; j ++) {
			if(i == j) continue;
			dp[i] = (dp[i] | (dp[i] << a[j]));
			dp[i][a[j]] = 1;
		}
	}
	if(sum%2 || !dp[0][sum/2]) {
		cout << 0;
		return;
	}
	vector<int> ans;
	for(int i = 0; i <= sum; i ++) ord[i] = i;
	random_shuffle(ord , ord+sum+1);
	int t = 0;
	for(int i1 = 0; i1 <= sum+1; i1 ++) {
		t ++;
		int i = ord[i1];
		int ok = 1;
		for(int j = 1; j <= n; j ++) {
			t ++;
			int cur = sum-a[j]+i;
			if(cur%2 || !dp[j][cur/2]) {
				ok = 0;
				break;
			}
		}
		if(t == 1e7) {
			break;
		}
		if(ok) ans.push_back(i);
	}
	sort(all(ans));
	cout << ans.size() << '\n';
	for(auto to: ans) {
		cout << to << ' ';
	}
}
/*
5 5 5 5  15

*/
main() {
	file("subsequence");
    ios;
    int tt = 1;
    //cin >> tt;
    while(tt --) {
        solve();
    }
    return 0;
}

Compilation message

bootfall.cpp:72:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   72 | main() {
      |      ^
bootfall.cpp: In function 'int main()':
bootfall.cpp:4:48: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
    4 | #define file(s) if (fopen(s".in", "r")) freopen(s".in", "r", stdin), freopen(s".out", "w", stdout)
      |                                         ~~~~~~~^~~~~~~~~~~~~~~~~~~~
bootfall.cpp:73:2: note: in expansion of macro 'file'
   73 |  file("subsequence");
      |  ^~~~
bootfall.cpp:4:77: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
    4 | #define file(s) if (fopen(s".in", "r")) freopen(s".in", "r", stdin), freopen(s".out", "w", stdout)
      |                                                                      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
bootfall.cpp:73:2: note: in expansion of macro 'file'
   73 |  file("subsequence");
      |  ^~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 2 ms 620 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 2 ms 620 KB Output is correct
9 Correct 1 ms 492 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 2 ms 620 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 2 ms 620 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 6 ms 876 KB Output is correct
11 Correct 6 ms 876 KB Output is correct
12 Correct 6 ms 876 KB Output is correct
13 Correct 4 ms 748 KB Output is correct
14 Correct 5 ms 876 KB Output is correct
15 Correct 7 ms 876 KB Output is correct
16 Correct 6 ms 876 KB Output is correct
17 Correct 4 ms 620 KB Output is correct
18 Correct 4 ms 748 KB Output is correct
19 Correct 4 ms 748 KB Output is correct
20 Correct 6 ms 876 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 2 ms 620 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 2 ms 620 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 6 ms 876 KB Output is correct
11 Correct 6 ms 876 KB Output is correct
12 Correct 6 ms 876 KB Output is correct
13 Correct 4 ms 748 KB Output is correct
14 Correct 5 ms 876 KB Output is correct
15 Correct 7 ms 876 KB Output is correct
16 Correct 6 ms 876 KB Output is correct
17 Correct 4 ms 620 KB Output is correct
18 Correct 4 ms 748 KB Output is correct
19 Correct 4 ms 748 KB Output is correct
20 Correct 6 ms 876 KB Output is correct
21 Correct 23 ms 1388 KB Output is correct
22 Correct 31 ms 1644 KB Output is correct
23 Correct 15 ms 1260 KB Output is correct
24 Correct 50 ms 1900 KB Output is correct
25 Correct 51 ms 1912 KB Output is correct
26 Correct 57 ms 2284 KB Output is correct
27 Correct 56 ms 2028 KB Output is correct
28 Correct 55 ms 2028 KB Output is correct
29 Correct 57 ms 2028 KB Output is correct
30 Correct 57 ms 2044 KB Output is correct
31 Correct 56 ms 2028 KB Output is correct
32 Correct 72 ms 2028 KB Output is correct
33 Correct 55 ms 2028 KB Output is correct
34 Correct 56 ms 2028 KB Output is correct
35 Correct 56 ms 2156 KB Output is correct
36 Correct 56 ms 2028 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 2 ms 620 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 2 ms 620 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 6 ms 876 KB Output is correct
11 Correct 6 ms 876 KB Output is correct
12 Correct 6 ms 876 KB Output is correct
13 Correct 4 ms 748 KB Output is correct
14 Correct 5 ms 876 KB Output is correct
15 Correct 7 ms 876 KB Output is correct
16 Correct 6 ms 876 KB Output is correct
17 Correct 4 ms 620 KB Output is correct
18 Correct 4 ms 748 KB Output is correct
19 Correct 4 ms 748 KB Output is correct
20 Correct 6 ms 876 KB Output is correct
21 Correct 23 ms 1388 KB Output is correct
22 Correct 31 ms 1644 KB Output is correct
23 Correct 15 ms 1260 KB Output is correct
24 Correct 50 ms 1900 KB Output is correct
25 Correct 51 ms 1912 KB Output is correct
26 Correct 57 ms 2284 KB Output is correct
27 Correct 56 ms 2028 KB Output is correct
28 Correct 55 ms 2028 KB Output is correct
29 Correct 57 ms 2028 KB Output is correct
30 Correct 57 ms 2044 KB Output is correct
31 Correct 56 ms 2028 KB Output is correct
32 Correct 72 ms 2028 KB Output is correct
33 Correct 55 ms 2028 KB Output is correct
34 Correct 56 ms 2028 KB Output is correct
35 Correct 56 ms 2156 KB Output is correct
36 Correct 56 ms 2028 KB Output is correct
37 Correct 222 ms 3820 KB Output is correct
38 Correct 225 ms 3868 KB Output is correct
39 Correct 328 ms 4612 KB Output is correct
40 Correct 415 ms 5012 KB Output is correct
41 Correct 399 ms 4972 KB Output is correct
42 Correct 355 ms 4716 KB Output is correct
43 Correct 346 ms 4844 KB Output is correct
44 Correct 365 ms 4972 KB Output is correct
45 Correct 377 ms 4956 KB Output is correct
46 Correct 391 ms 4844 KB Output is correct
47 Correct 351 ms 4716 KB Output is correct
48 Correct 361 ms 4972 KB Output is correct
49 Correct 341 ms 4716 KB Output is correct
50 Correct 353 ms 4716 KB Output is correct
51 Correct 332 ms 4332 KB Output is correct
52 Correct 430 ms 5484 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 2 ms 620 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 2 ms 620 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 6 ms 876 KB Output is correct
11 Correct 6 ms 876 KB Output is correct
12 Correct 6 ms 876 KB Output is correct
13 Correct 4 ms 748 KB Output is correct
14 Correct 5 ms 876 KB Output is correct
15 Correct 7 ms 876 KB Output is correct
16 Correct 6 ms 876 KB Output is correct
17 Correct 4 ms 620 KB Output is correct
18 Correct 4 ms 748 KB Output is correct
19 Correct 4 ms 748 KB Output is correct
20 Correct 6 ms 876 KB Output is correct
21 Correct 23 ms 1388 KB Output is correct
22 Correct 31 ms 1644 KB Output is correct
23 Correct 15 ms 1260 KB Output is correct
24 Correct 50 ms 1900 KB Output is correct
25 Correct 51 ms 1912 KB Output is correct
26 Correct 57 ms 2284 KB Output is correct
27 Correct 56 ms 2028 KB Output is correct
28 Correct 55 ms 2028 KB Output is correct
29 Correct 57 ms 2028 KB Output is correct
30 Correct 57 ms 2044 KB Output is correct
31 Correct 56 ms 2028 KB Output is correct
32 Correct 72 ms 2028 KB Output is correct
33 Correct 55 ms 2028 KB Output is correct
34 Correct 56 ms 2028 KB Output is correct
35 Correct 56 ms 2156 KB Output is correct
36 Correct 56 ms 2028 KB Output is correct
37 Correct 222 ms 3820 KB Output is correct
38 Correct 225 ms 3868 KB Output is correct
39 Correct 328 ms 4612 KB Output is correct
40 Correct 415 ms 5012 KB Output is correct
41 Correct 399 ms 4972 KB Output is correct
42 Correct 355 ms 4716 KB Output is correct
43 Correct 346 ms 4844 KB Output is correct
44 Correct 365 ms 4972 KB Output is correct
45 Correct 377 ms 4956 KB Output is correct
46 Correct 391 ms 4844 KB Output is correct
47 Correct 351 ms 4716 KB Output is correct
48 Correct 361 ms 4972 KB Output is correct
49 Correct 341 ms 4716 KB Output is correct
50 Correct 353 ms 4716 KB Output is correct
51 Correct 332 ms 4332 KB Output is correct
52 Correct 430 ms 5484 KB Output is correct
53 Correct 519 ms 5740 KB Output is correct
54 Correct 704 ms 6636 KB Output is correct
55 Correct 732 ms 7300 KB Output is correct
56 Correct 548 ms 5868 KB Output is correct
57 Correct 746 ms 7104 KB Output is correct
58 Correct 700 ms 6616 KB Output is correct
59 Correct 721 ms 6896 KB Output is correct
60 Correct 657 ms 6252 KB Output is correct
61 Correct 719 ms 6816 KB Output is correct
62 Correct 616 ms 6512 KB Output is correct
63 Correct 627 ms 6512 KB Output is correct
64 Correct 604 ms 6428 KB Output is correct
65 Correct 538 ms 5740 KB Output is correct
66 Correct 515 ms 5612 KB Output is correct

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 2 ms 620 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 2 ms 620 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 6 ms 876 KB Output is correct
11 Correct 6 ms 876 KB Output is correct
12 Correct 6 ms 876 KB Output is correct
13 Correct 4 ms 748 KB Output is correct
14 Correct 5 ms 876 KB Output is correct
15 Correct 7 ms 876 KB Output is correct
16 Correct 6 ms 876 KB Output is correct
17 Correct 4 ms 620 KB Output is correct
18 Correct 4 ms 748 KB Output is correct
19 Correct 4 ms 748 KB Output is correct
20 Correct 6 ms 876 KB Output is correct
21 Correct 23 ms 1388 KB Output is correct
22 Correct 31 ms 1644 KB Output is correct
23 Correct 15 ms 1260 KB Output is correct
24 Correct 50 ms 1900 KB Output is correct
25 Correct 51 ms 1912 KB Output is correct
26 Correct 57 ms 2284 KB Output is correct
27 Correct 56 ms 2028 KB Output is correct
28 Correct 55 ms 2028 KB Output is correct
29 Correct 57 ms 2028 KB Output is correct
30 Correct 57 ms 2044 KB Output is correct
31 Correct 56 ms 2028 KB Output is correct
32 Correct 72 ms 2028 KB Output is correct
33 Correct 55 ms 2028 KB Output is correct
34 Correct 56 ms 2028 KB Output is correct
35 Correct 56 ms 2156 KB Output is correct
36 Correct 56 ms 2028 KB Output is correct
37 Correct 222 ms 3820 KB Output is correct
38 Correct 225 ms 3868 KB Output is correct
39 Correct 328 ms 4612 KB Output is correct
40 Correct 415 ms 5012 KB Output is correct
41 Correct 399 ms 4972 KB Output is correct
42 Correct 355 ms 4716 KB Output is correct
43 Correct 346 ms 4844 KB Output is correct
44 Correct 365 ms 4972 KB Output is correct
45 Correct 377 ms 4956 KB Output is correct
46 Correct 391 ms 4844 KB Output is correct
47 Correct 351 ms 4716 KB Output is correct
48 Correct 361 ms 4972 KB Output is correct
49 Correct 341 ms 4716 KB Output is correct
50 Correct 353 ms 4716 KB Output is correct
51 Correct 332 ms 4332 KB Output is correct
52 Correct 430 ms 5484 KB Output is correct
53 Correct 519 ms 5740 KB Output is correct
54 Correct 704 ms 6636 KB Output is correct
55 Correct 732 ms 7300 KB Output is correct
56 Correct 548 ms 5868 KB Output is correct
57 Correct 746 ms 7104 KB Output is correct
58 Correct 700 ms 6616 KB Output is correct
59 Correct 721 ms 6896 KB Output is correct
60 Correct 657 ms 6252 KB Output is correct
61 Correct 719 ms 6816 KB Output is correct
62 Correct 616 ms 6512 KB Output is correct
63 Correct 627 ms 6512 KB Output is correct
64 Correct 604 ms 6428 KB Output is correct
65 Correct 538 ms 5740 KB Output is correct
66 Correct 515 ms 5612 KB Output is correct
67 Correct 943 ms 7536 KB Output is correct
68 Execution timed out 1086 ms 6860 KB Time limit exceeded
69 Halted 0 ms 0 KB -