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Submission #343641

# Submission time Handle Problem Language Result Execution time Memory
343641 2021-01-04T10:22:55 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 == 5e7) {
			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 2 ms 620 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 2 ms 620 KB Output is correct
10 Correct 6 ms 876 KB Output is correct
11 Correct 7 ms 876 KB Output is correct
12 Correct 6 ms 876 KB Output is correct
13 Correct 5 ms 748 KB Output is correct
14 Correct 5 ms 876 KB Output is correct
15 Correct 5 ms 876 KB Output is correct
16 Correct 6 ms 876 KB Output is correct
17 Correct 3 ms 620 KB Output is correct
18 Correct 4 ms 748 KB Output is correct
19 Correct 5 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 2 ms 620 KB Output is correct
10 Correct 6 ms 876 KB Output is correct
11 Correct 7 ms 876 KB Output is correct
12 Correct 6 ms 876 KB Output is correct
13 Correct 5 ms 748 KB Output is correct
14 Correct 5 ms 876 KB Output is correct
15 Correct 5 ms 876 KB Output is correct
16 Correct 6 ms 876 KB Output is correct
17 Correct 3 ms 620 KB Output is correct
18 Correct 4 ms 748 KB Output is correct
19 Correct 5 ms 748 KB Output is correct
20 Correct 6 ms 876 KB Output is correct
21 Correct 24 ms 1516 KB Output is correct
22 Correct 31 ms 1616 KB Output is correct
23 Correct 15 ms 1260 KB Output is correct
24 Correct 51 ms 1900 KB Output is correct
25 Correct 50 ms 2024 KB Output is correct
26 Correct 56 ms 2156 KB Output is correct
27 Correct 55 ms 2028 KB Output is correct
28 Correct 55 ms 2028 KB Output is correct
29 Correct 55 ms 2028 KB Output is correct
30 Correct 67 ms 2028 KB Output is correct
31 Correct 74 ms 2124 KB Output is correct
32 Correct 56 ms 2028 KB Output is correct
33 Correct 55 ms 2156 KB Output is correct
34 Correct 55 ms 2048 KB Output is correct
35 Correct 55 ms 2028 KB Output is correct
36 Correct 55 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 2 ms 620 KB Output is correct
10 Correct 6 ms 876 KB Output is correct
11 Correct 7 ms 876 KB Output is correct
12 Correct 6 ms 876 KB Output is correct
13 Correct 5 ms 748 KB Output is correct
14 Correct 5 ms 876 KB Output is correct
15 Correct 5 ms 876 KB Output is correct
16 Correct 6 ms 876 KB Output is correct
17 Correct 3 ms 620 KB Output is correct
18 Correct 4 ms 748 KB Output is correct
19 Correct 5 ms 748 KB Output is correct
20 Correct 6 ms 876 KB Output is correct
21 Correct 24 ms 1516 KB Output is correct
22 Correct 31 ms 1616 KB Output is correct
23 Correct 15 ms 1260 KB Output is correct
24 Correct 51 ms 1900 KB Output is correct
25 Correct 50 ms 2024 KB Output is correct
26 Correct 56 ms 2156 KB Output is correct
27 Correct 55 ms 2028 KB Output is correct
28 Correct 55 ms 2028 KB Output is correct
29 Correct 55 ms 2028 KB Output is correct
30 Correct 67 ms 2028 KB Output is correct
31 Correct 74 ms 2124 KB Output is correct
32 Correct 56 ms 2028 KB Output is correct
33 Correct 55 ms 2156 KB Output is correct
34 Correct 55 ms 2048 KB Output is correct
35 Correct 55 ms 2028 KB Output is correct
36 Correct 55 ms 2028 KB Output is correct
37 Correct 225 ms 3820 KB Output is correct
38 Correct 225 ms 3820 KB Output is correct
39 Correct 329 ms 4588 KB Output is correct
40 Correct 433 ms 5228 KB Output is correct
41 Correct 395 ms 5100 KB Output is correct
42 Correct 351 ms 4844 KB Output is correct
43 Correct 365 ms 4844 KB Output is correct
44 Correct 362 ms 4972 KB Output is correct
45 Correct 377 ms 5228 KB Output is correct
46 Correct 383 ms 4844 KB Output is correct
47 Correct 349 ms 4716 KB Output is correct
48 Correct 357 ms 5100 KB Output is correct
49 Correct 341 ms 4844 KB Output is correct
50 Correct 362 ms 4688 KB Output is correct
51 Correct 339 ms 4460 KB Output is correct
52 Correct 431 ms 5356 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 2 ms 620 KB Output is correct
10 Correct 6 ms 876 KB Output is correct
11 Correct 7 ms 876 KB Output is correct
12 Correct 6 ms 876 KB Output is correct
13 Correct 5 ms 748 KB Output is correct
14 Correct 5 ms 876 KB Output is correct
15 Correct 5 ms 876 KB Output is correct
16 Correct 6 ms 876 KB Output is correct
17 Correct 3 ms 620 KB Output is correct
18 Correct 4 ms 748 KB Output is correct
19 Correct 5 ms 748 KB Output is correct
20 Correct 6 ms 876 KB Output is correct
21 Correct 24 ms 1516 KB Output is correct
22 Correct 31 ms 1616 KB Output is correct
23 Correct 15 ms 1260 KB Output is correct
24 Correct 51 ms 1900 KB Output is correct
25 Correct 50 ms 2024 KB Output is correct
26 Correct 56 ms 2156 KB Output is correct
27 Correct 55 ms 2028 KB Output is correct
28 Correct 55 ms 2028 KB Output is correct
29 Correct 55 ms 2028 KB Output is correct
30 Correct 67 ms 2028 KB Output is correct
31 Correct 74 ms 2124 KB Output is correct
32 Correct 56 ms 2028 KB Output is correct
33 Correct 55 ms 2156 KB Output is correct
34 Correct 55 ms 2048 KB Output is correct
35 Correct 55 ms 2028 KB Output is correct
36 Correct 55 ms 2028 KB Output is correct
37 Correct 225 ms 3820 KB Output is correct
38 Correct 225 ms 3820 KB Output is correct
39 Correct 329 ms 4588 KB Output is correct
40 Correct 433 ms 5228 KB Output is correct
41 Correct 395 ms 5100 KB Output is correct
42 Correct 351 ms 4844 KB Output is correct
43 Correct 365 ms 4844 KB Output is correct
44 Correct 362 ms 4972 KB Output is correct
45 Correct 377 ms 5228 KB Output is correct
46 Correct 383 ms 4844 KB Output is correct
47 Correct 349 ms 4716 KB Output is correct
48 Correct 357 ms 5100 KB Output is correct
49 Correct 341 ms 4844 KB Output is correct
50 Correct 362 ms 4688 KB Output is correct
51 Correct 339 ms 4460 KB Output is correct
52 Correct 431 ms 5356 KB Output is correct
53 Correct 525 ms 5868 KB Output is correct
54 Correct 694 ms 6764 KB Output is correct
55 Correct 733 ms 7152 KB Output is correct
56 Correct 553 ms 6036 KB Output is correct
57 Correct 743 ms 7160 KB Output is correct
58 Correct 727 ms 6912 KB Output is correct
59 Correct 736 ms 6768 KB Output is correct
60 Correct 658 ms 6124 KB Output is correct
61 Correct 727 ms 6956 KB Output is correct
62 Correct 612 ms 6640 KB Output is correct
63 Correct 648 ms 6512 KB Output is correct
64 Correct 617 ms 6384 KB Output is correct
65 Correct 543 ms 5740 KB Output is correct
66 Correct 525 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 2 ms 620 KB Output is correct
10 Correct 6 ms 876 KB Output is correct
11 Correct 7 ms 876 KB Output is correct
12 Correct 6 ms 876 KB Output is correct
13 Correct 5 ms 748 KB Output is correct
14 Correct 5 ms 876 KB Output is correct
15 Correct 5 ms 876 KB Output is correct
16 Correct 6 ms 876 KB Output is correct
17 Correct 3 ms 620 KB Output is correct
18 Correct 4 ms 748 KB Output is correct
19 Correct 5 ms 748 KB Output is correct
20 Correct 6 ms 876 KB Output is correct
21 Correct 24 ms 1516 KB Output is correct
22 Correct 31 ms 1616 KB Output is correct
23 Correct 15 ms 1260 KB Output is correct
24 Correct 51 ms 1900 KB Output is correct
25 Correct 50 ms 2024 KB Output is correct
26 Correct 56 ms 2156 KB Output is correct
27 Correct 55 ms 2028 KB Output is correct
28 Correct 55 ms 2028 KB Output is correct
29 Correct 55 ms 2028 KB Output is correct
30 Correct 67 ms 2028 KB Output is correct
31 Correct 74 ms 2124 KB Output is correct
32 Correct 56 ms 2028 KB Output is correct
33 Correct 55 ms 2156 KB Output is correct
34 Correct 55 ms 2048 KB Output is correct
35 Correct 55 ms 2028 KB Output is correct
36 Correct 55 ms 2028 KB Output is correct
37 Correct 225 ms 3820 KB Output is correct
38 Correct 225 ms 3820 KB Output is correct
39 Correct 329 ms 4588 KB Output is correct
40 Correct 433 ms 5228 KB Output is correct
41 Correct 395 ms 5100 KB Output is correct
42 Correct 351 ms 4844 KB Output is correct
43 Correct 365 ms 4844 KB Output is correct
44 Correct 362 ms 4972 KB Output is correct
45 Correct 377 ms 5228 KB Output is correct
46 Correct 383 ms 4844 KB Output is correct
47 Correct 349 ms 4716 KB Output is correct
48 Correct 357 ms 5100 KB Output is correct
49 Correct 341 ms 4844 KB Output is correct
50 Correct 362 ms 4688 KB Output is correct
51 Correct 339 ms 4460 KB Output is correct
52 Correct 431 ms 5356 KB Output is correct
53 Correct 525 ms 5868 KB Output is correct
54 Correct 694 ms 6764 KB Output is correct
55 Correct 733 ms 7152 KB Output is correct
56 Correct 553 ms 6036 KB Output is correct
57 Correct 743 ms 7160 KB Output is correct
58 Correct 727 ms 6912 KB Output is correct
59 Correct 736 ms 6768 KB Output is correct
60 Correct 658 ms 6124 KB Output is correct
61 Correct 727 ms 6956 KB Output is correct
62 Correct 612 ms 6640 KB Output is correct
63 Correct 648 ms 6512 KB Output is correct
64 Correct 617 ms 6384 KB Output is correct
65 Correct 543 ms 5740 KB Output is correct
66 Correct 525 ms 5612 KB Output is correct
67 Correct 945 ms 7536 KB Output is correct
68 Execution timed out 1085 ms 6908 KB Time limit exceeded
69 Halted 0 ms 0 KB -