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Submission #343687

# Submission time Handle Problem Language Result Execution time Memory
343687 2021-01-04T11:37:50 Z Kalashnikov Bootfall (IZhO17_bootfall) C++17
65 / 100
 1000 ms 7152 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];
bitset<500*250> dp[N] , b1;


void solve() {
	int n;
	cin >> n;
	int sum = 0;
	int cnt[2];
	cnt[0]=cnt[1]=0;
	for(int i = 1; i <= n; i ++) {
		cin >> a[i];
		sum += a[i];
		cnt[a[i]%2] = 1;
	}
	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;
		}
		dp[i] <<= a[i]/2;
		if(i == 1) b1 = dp[i];
		if(i > 1) b1 &= dp[i];
	}
	if(sum%2 || !dp[0][sum/2] || cnt[0] == cnt[1]) {
		cout << 0;
		return;
	}
	vector<int> ans;
	int sta = 0;
	if(cnt[1]) sta = 1;
	for(int i = sta; i <= sum; i += 2) {
		int cur = (sum+i)/2;
		if(b1[cur]) ans.push_back(i);
	}
	sort(all(ans));
	cout << ans.size() << '\n';
	for(auto to: ans) {
		cout << to << ' ';
	}
}
/*
1 2 1 2   2


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

Compilation message

bootfall.cpp:63:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   63 | main() {
      |      ^

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 640 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 1 ms 620 KB Output is correct
9 Correct 2 ms 492 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 640 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 1 ms 620 KB Output is correct
9 Correct 2 ms 492 KB Output is correct
10 Correct 6 ms 876 KB Output is correct
11 Correct 8 ms 876 KB Output is correct
12 Correct 8 ms 876 KB Output is correct
13 Correct 5 ms 748 KB Output is correct
14 Correct 6 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 640 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 1 ms 620 KB Output is correct
9 Correct 2 ms 492 KB Output is correct
10 Correct 6 ms 876 KB Output is correct
11 Correct 8 ms 876 KB Output is correct
12 Correct 8 ms 876 KB Output is correct
13 Correct 5 ms 748 KB Output is correct
14 Correct 6 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 32 ms 1516 KB Output is correct
23 Correct 15 ms 1132 KB Output is correct
24 Correct 51 ms 1900 KB Output is correct
25 Correct 56 ms 1900 KB Output is correct
26 Correct 57 ms 2028 KB Output is correct
27 Correct 57 ms 1900 KB Output is correct
28 Correct 58 ms 2028 KB Output is correct
29 Correct 57 ms 1900 KB Output is correct
30 Correct 68 ms 1900 KB Output is correct
31 Correct 57 ms 2028 KB Output is correct
32 Correct 57 ms 2028 KB Output is correct
33 Correct 58 ms 1900 KB Output is correct
34 Correct 65 ms 1900 KB Output is correct
35 Correct 57 ms 1900 KB Output is correct
36 Correct 58 ms 2028 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 640 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 1 ms 620 KB Output is correct
9 Correct 2 ms 492 KB Output is correct
10 Correct 6 ms 876 KB Output is correct
11 Correct 8 ms 876 KB Output is correct
12 Correct 8 ms 876 KB Output is correct
13 Correct 5 ms 748 KB Output is correct
14 Correct 6 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 32 ms 1516 KB Output is correct
23 Correct 15 ms 1132 KB Output is correct
24 Correct 51 ms 1900 KB Output is correct
25 Correct 56 ms 1900 KB Output is correct
26 Correct 57 ms 2028 KB Output is correct
27 Correct 57 ms 1900 KB Output is correct
28 Correct 58 ms 2028 KB Output is correct
29 Correct 57 ms 1900 KB Output is correct
30 Correct 68 ms 1900 KB Output is correct
31 Correct 57 ms 2028 KB Output is correct
32 Correct 57 ms 2028 KB Output is correct
33 Correct 58 ms 1900 KB Output is correct
34 Correct 65 ms 1900 KB Output is correct
35 Correct 57 ms 1900 KB Output is correct
36 Correct 58 ms 2028 KB Output is correct
37 Correct 254 ms 3692 KB Output is correct
38 Correct 230 ms 3692 KB Output is correct
39 Correct 350 ms 4252 KB Output is correct
40 Correct 410 ms 4844 KB Output is correct
41 Correct 404 ms 4588 KB Output is correct
42 Correct 347 ms 4460 KB Output is correct
43 Correct 337 ms 4580 KB Output is correct
44 Correct 402 ms 4624 KB Output is correct
45 Correct 369 ms 4588 KB Output is correct
46 Correct 512 ms 4588 KB Output is correct
47 Correct 362 ms 4460 KB Output is correct
48 Correct 370 ms 4588 KB Output is correct
49 Correct 378 ms 4480 KB Output is correct
50 Correct 360 ms 4428 KB Output is correct
51 Correct 376 ms 4204 KB Output is correct
52 Correct 522 ms 4896 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 640 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 1 ms 620 KB Output is correct
9 Correct 2 ms 492 KB Output is correct
10 Correct 6 ms 876 KB Output is correct
11 Correct 8 ms 876 KB Output is correct
12 Correct 8 ms 876 KB Output is correct
13 Correct 5 ms 748 KB Output is correct
14 Correct 6 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 32 ms 1516 KB Output is correct
23 Correct 15 ms 1132 KB Output is correct
24 Correct 51 ms 1900 KB Output is correct
25 Correct 56 ms 1900 KB Output is correct
26 Correct 57 ms 2028 KB Output is correct
27 Correct 57 ms 1900 KB Output is correct
28 Correct 58 ms 2028 KB Output is correct
29 Correct 57 ms 1900 KB Output is correct
30 Correct 68 ms 1900 KB Output is correct
31 Correct 57 ms 2028 KB Output is correct
32 Correct 57 ms 2028 KB Output is correct
33 Correct 58 ms 1900 KB Output is correct
34 Correct 65 ms 1900 KB Output is correct
35 Correct 57 ms 1900 KB Output is correct
36 Correct 58 ms 2028 KB Output is correct
37 Correct 254 ms 3692 KB Output is correct
38 Correct 230 ms 3692 KB Output is correct
39 Correct 350 ms 4252 KB Output is correct
40 Correct 410 ms 4844 KB Output is correct
41 Correct 404 ms 4588 KB Output is correct
42 Correct 347 ms 4460 KB Output is correct
43 Correct 337 ms 4580 KB Output is correct
44 Correct 402 ms 4624 KB Output is correct
45 Correct 369 ms 4588 KB Output is correct
46 Correct 512 ms 4588 KB Output is correct
47 Correct 362 ms 4460 KB Output is correct
48 Correct 370 ms 4588 KB Output is correct
49 Correct 378 ms 4480 KB Output is correct
50 Correct 360 ms 4428 KB Output is correct
51 Correct 376 ms 4204 KB Output is correct
52 Correct 522 ms 4896 KB Output is correct
53 Correct 548 ms 5340 KB Output is correct
54 Correct 735 ms 6252 KB Output is correct
55 Correct 905 ms 6444 KB Output is correct
56 Correct 527 ms 5636 KB Output is correct
57 Correct 818 ms 6616 KB Output is correct
58 Correct 721 ms 6380 KB Output is correct
59 Correct 710 ms 6240 KB Output is correct
60 Correct 711 ms 5804 KB Output is correct
61 Correct 710 ms 6416 KB Output is correct
62 Correct 633 ms 6000 KB Output is correct
63 Correct 575 ms 6128 KB Output is correct
64 Correct 554 ms 5872 KB Output is correct
65 Correct 561 ms 5612 KB Output is correct
66 Correct 536 ms 5300 KB Output is correct

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 640 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 1 ms 620 KB Output is correct
9 Correct 2 ms 492 KB Output is correct
10 Correct 6 ms 876 KB Output is correct
11 Correct 8 ms 876 KB Output is correct
12 Correct 8 ms 876 KB Output is correct
13 Correct 5 ms 748 KB Output is correct
14 Correct 6 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 32 ms 1516 KB Output is correct
23 Correct 15 ms 1132 KB Output is correct
24 Correct 51 ms 1900 KB Output is correct
25 Correct 56 ms 1900 KB Output is correct
26 Correct 57 ms 2028 KB Output is correct
27 Correct 57 ms 1900 KB Output is correct
28 Correct 58 ms 2028 KB Output is correct
29 Correct 57 ms 1900 KB Output is correct
30 Correct 68 ms 1900 KB Output is correct
31 Correct 57 ms 2028 KB Output is correct
32 Correct 57 ms 2028 KB Output is correct
33 Correct 58 ms 1900 KB Output is correct
34 Correct 65 ms 1900 KB Output is correct
35 Correct 57 ms 1900 KB Output is correct
36 Correct 58 ms 2028 KB Output is correct
37 Correct 254 ms 3692 KB Output is correct
38 Correct 230 ms 3692 KB Output is correct
39 Correct 350 ms 4252 KB Output is correct
40 Correct 410 ms 4844 KB Output is correct
41 Correct 404 ms 4588 KB Output is correct
42 Correct 347 ms 4460 KB Output is correct
43 Correct 337 ms 4580 KB Output is correct
44 Correct 402 ms 4624 KB Output is correct
45 Correct 369 ms 4588 KB Output is correct
46 Correct 512 ms 4588 KB Output is correct
47 Correct 362 ms 4460 KB Output is correct
48 Correct 370 ms 4588 KB Output is correct
49 Correct 378 ms 4480 KB Output is correct
50 Correct 360 ms 4428 KB Output is correct
51 Correct 376 ms 4204 KB Output is correct
52 Correct 522 ms 4896 KB Output is correct
53 Correct 548 ms 5340 KB Output is correct
54 Correct 735 ms 6252 KB Output is correct
55 Correct 905 ms 6444 KB Output is correct
56 Correct 527 ms 5636 KB Output is correct
57 Correct 818 ms 6616 KB Output is correct
58 Correct 721 ms 6380 KB Output is correct
59 Correct 710 ms 6240 KB Output is correct
60 Correct 711 ms 5804 KB Output is correct
61 Correct 710 ms 6416 KB Output is correct
62 Correct 633 ms 6000 KB Output is correct
63 Correct 575 ms 6128 KB Output is correct
64 Correct 554 ms 5872 KB Output is correct
65 Correct 561 ms 5612 KB Output is correct
66 Correct 536 ms 5300 KB Output is correct
67 Correct 889 ms 7152 KB Output is correct
68 Execution timed out 1036 ms 6124 KB Time limit exceeded
69 Halted 0 ms 0 KB -