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Submission #343816

# Submission time Handle Problem Language Result Execution time Memory
343816 2021-01-04T13:56:14 Z Kalashnikov Bootfall (IZhO17_bootfall) C++17
44 / 100
 1000 ms 1004 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*500>  b1 , b3;


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;
	}
	if(sum%2 || cnt[0]==cnt[1]) {
		cout << 0;
		return;
	}
	for(int i = 0; i <= n; i ++) {
		b3.reset();
		for(int j = 1; j <= n; j ++) {
			if(i == j) continue;
			b3 |= (b3 << a[j]);
			b3[a[j]] = 1;
		}
		if(i == 0 && !b3[sum/2]) {
			cout << 0;
			return;
		}
		if(i) b3 <<= a[i]/2;
		if(i == 1) b1 = b3;
		if(i > 1) b1 &= b3;
	}
	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:67:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   67 | main() {
      |      ^

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 364 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 2 ms 492 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 492 KB Output is correct
9 Correct 0 ms 364 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 364 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 2 ms 492 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 492 KB Output is correct
9 Correct 0 ms 364 KB Output is correct
10 Correct 9 ms 492 KB Output is correct
11 Correct 8 ms 492 KB Output is correct
12 Correct 9 ms 492 KB Output is correct
13 Correct 0 ms 364 KB Output is correct
14 Correct 7 ms 492 KB Output is correct
15 Correct 7 ms 492 KB Output is correct
16 Correct 8 ms 492 KB Output is correct
17 Correct 3 ms 492 KB Output is correct
18 Correct 6 ms 492 KB Output is correct
19 Correct 6 ms 492 KB Output is correct
20 Correct 8 ms 492 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 364 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 2 ms 492 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 492 KB Output is correct
9 Correct 0 ms 364 KB Output is correct
10 Correct 9 ms 492 KB Output is correct
11 Correct 8 ms 492 KB Output is correct
12 Correct 9 ms 492 KB Output is correct
13 Correct 0 ms 364 KB Output is correct
14 Correct 7 ms 492 KB Output is correct
15 Correct 7 ms 492 KB Output is correct
16 Correct 8 ms 492 KB Output is correct
17 Correct 3 ms 492 KB Output is correct
18 Correct 6 ms 492 KB Output is correct
19 Correct 6 ms 492 KB Output is correct
20 Correct 8 ms 492 KB Output is correct
21 Correct 38 ms 492 KB Output is correct
22 Correct 48 ms 492 KB Output is correct
23 Correct 22 ms 512 KB Output is correct
24 Correct 76 ms 492 KB Output is correct
25 Correct 76 ms 492 KB Output is correct
26 Correct 88 ms 492 KB Output is correct
27 Correct 97 ms 492 KB Output is correct
28 Correct 86 ms 492 KB Output is correct
29 Correct 85 ms 492 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 88 ms 512 KB Output is correct
32 Correct 85 ms 492 KB Output is correct
33 Correct 85 ms 620 KB Output is correct
34 Correct 93 ms 492 KB Output is correct
35 Correct 85 ms 492 KB Output is correct
36 Correct 86 ms 640 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 364 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 2 ms 492 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 492 KB Output is correct
9 Correct 0 ms 364 KB Output is correct
10 Correct 9 ms 492 KB Output is correct
11 Correct 8 ms 492 KB Output is correct
12 Correct 9 ms 492 KB Output is correct
13 Correct 0 ms 364 KB Output is correct
14 Correct 7 ms 492 KB Output is correct
15 Correct 7 ms 492 KB Output is correct
16 Correct 8 ms 492 KB Output is correct
17 Correct 3 ms 492 KB Output is correct
18 Correct 6 ms 492 KB Output is correct
19 Correct 6 ms 492 KB Output is correct
20 Correct 8 ms 492 KB Output is correct
21 Correct 38 ms 492 KB Output is correct
22 Correct 48 ms 492 KB Output is correct
23 Correct 22 ms 512 KB Output is correct
24 Correct 76 ms 492 KB Output is correct
25 Correct 76 ms 492 KB Output is correct
26 Correct 88 ms 492 KB Output is correct
27 Correct 97 ms 492 KB Output is correct
28 Correct 86 ms 492 KB Output is correct
29 Correct 85 ms 492 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 88 ms 512 KB Output is correct
32 Correct 85 ms 492 KB Output is correct
33 Correct 85 ms 620 KB Output is correct
34 Correct 93 ms 492 KB Output is correct
35 Correct 85 ms 492 KB Output is correct
36 Correct 86 ms 640 KB Output is correct
37 Correct 338 ms 620 KB Output is correct
38 Correct 343 ms 620 KB Output is correct
39 Correct 523 ms 512 KB Output is correct
40 Correct 619 ms 640 KB Output is correct
41 Correct 615 ms 620 KB Output is correct
42 Correct 538 ms 620 KB Output is correct
43 Correct 506 ms 1004 KB Output is correct
44 Correct 527 ms 896 KB Output is correct
45 Correct 535 ms 876 KB Output is correct
46 Correct 629 ms 620 KB Output is correct
47 Correct 533 ms 620 KB Output is correct
48 Correct 548 ms 876 KB Output is correct
49 Correct 537 ms 620 KB Output is correct
50 Correct 531 ms 620 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 623 ms 1004 KB Output is correct

Subtask #5
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 364 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 2 ms 492 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 492 KB Output is correct
9 Correct 0 ms 364 KB Output is correct
10 Correct 9 ms 492 KB Output is correct
11 Correct 8 ms 492 KB Output is correct
12 Correct 9 ms 492 KB Output is correct
13 Correct 0 ms 364 KB Output is correct
14 Correct 7 ms 492 KB Output is correct
15 Correct 7 ms 492 KB Output is correct
16 Correct 8 ms 492 KB Output is correct
17 Correct 3 ms 492 KB Output is correct
18 Correct 6 ms 492 KB Output is correct
19 Correct 6 ms 492 KB Output is correct
20 Correct 8 ms 492 KB Output is correct
21 Correct 38 ms 492 KB Output is correct
22 Correct 48 ms 492 KB Output is correct
23 Correct 22 ms 512 KB Output is correct
24 Correct 76 ms 492 KB Output is correct
25 Correct 76 ms 492 KB Output is correct
26 Correct 88 ms 492 KB Output is correct
27 Correct 97 ms 492 KB Output is correct
28 Correct 86 ms 492 KB Output is correct
29 Correct 85 ms 492 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 88 ms 512 KB Output is correct
32 Correct 85 ms 492 KB Output is correct
33 Correct 85 ms 620 KB Output is correct
34 Correct 93 ms 492 KB Output is correct
35 Correct 85 ms 492 KB Output is correct
36 Correct 86 ms 640 KB Output is correct
37 Correct 338 ms 620 KB Output is correct
38 Correct 343 ms 620 KB Output is correct
39 Correct 523 ms 512 KB Output is correct
40 Correct 619 ms 640 KB Output is correct
41 Correct 615 ms 620 KB Output is correct
42 Correct 538 ms 620 KB Output is correct
43 Correct 506 ms 1004 KB Output is correct
44 Correct 527 ms 896 KB Output is correct
45 Correct 535 ms 876 KB Output is correct
46 Correct 629 ms 620 KB Output is correct
47 Correct 533 ms 620 KB Output is correct
48 Correct 548 ms 876 KB Output is correct
49 Correct 537 ms 620 KB Output is correct
50 Correct 531 ms 620 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 623 ms 1004 KB Output is correct
53 Correct 761 ms 876 KB Output is correct
54 Execution timed out 1039 ms 1004 KB Time limit exceeded
55 Halted 0 ms 0 KB -

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 364 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 2 ms 492 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 492 KB Output is correct
9 Correct 0 ms 364 KB Output is correct
10 Correct 9 ms 492 KB Output is correct
11 Correct 8 ms 492 KB Output is correct
12 Correct 9 ms 492 KB Output is correct
13 Correct 0 ms 364 KB Output is correct
14 Correct 7 ms 492 KB Output is correct
15 Correct 7 ms 492 KB Output is correct
16 Correct 8 ms 492 KB Output is correct
17 Correct 3 ms 492 KB Output is correct
18 Correct 6 ms 492 KB Output is correct
19 Correct 6 ms 492 KB Output is correct
20 Correct 8 ms 492 KB Output is correct
21 Correct 38 ms 492 KB Output is correct
22 Correct 48 ms 492 KB Output is correct
23 Correct 22 ms 512 KB Output is correct
24 Correct 76 ms 492 KB Output is correct
25 Correct 76 ms 492 KB Output is correct
26 Correct 88 ms 492 KB Output is correct
27 Correct 97 ms 492 KB Output is correct
28 Correct 86 ms 492 KB Output is correct
29 Correct 85 ms 492 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 88 ms 512 KB Output is correct
32 Correct 85 ms 492 KB Output is correct
33 Correct 85 ms 620 KB Output is correct
34 Correct 93 ms 492 KB Output is correct
35 Correct 85 ms 492 KB Output is correct
36 Correct 86 ms 640 KB Output is correct
37 Correct 338 ms 620 KB Output is correct
38 Correct 343 ms 620 KB Output is correct
39 Correct 523 ms 512 KB Output is correct
40 Correct 619 ms 640 KB Output is correct
41 Correct 615 ms 620 KB Output is correct
42 Correct 538 ms 620 KB Output is correct
43 Correct 506 ms 1004 KB Output is correct
44 Correct 527 ms 896 KB Output is correct
45 Correct 535 ms 876 KB Output is correct
46 Correct 629 ms 620 KB Output is correct
47 Correct 533 ms 620 KB Output is correct
48 Correct 548 ms 876 KB Output is correct
49 Correct 537 ms 620 KB Output is correct
50 Correct 531 ms 620 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 623 ms 1004 KB Output is correct
53 Correct 761 ms 876 KB Output is correct
54 Execution timed out 1039 ms 1004 KB Time limit exceeded
55 Halted 0 ms 0 KB -