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Submission #343762

# Submission time Handle Problem Language Result Execution time Memory
343762 2021-01-04T13:06:05 Z Kalashnikov Bootfall (IZhO17_bootfall) C++17
65 / 100
 1000 ms 1112 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>  b1 , b2 , 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;
	}
	set<int> st;
	for(int i = 0; i <= n; i ++) {
		b3 &= 0;
		for(int j = 1; j <= n; j ++) {
			if(i == j) continue;
			if(i == 0) {
				b2 = (b2 | (b2 << a[j]) );
				b2[a[j]] = 1;
			}
			else {
				b3 = (b3 | (b3 << a[j]) );
				b3[a[j]] = 1;
			}
		}
		if(i) b3 <<= a[i]/2;
		if(i == 1) b1 = b3;
		if(i > 1) b1 &= b3;
	}
	if(!b2[sum/2]) {
		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:74:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   74 | main() {
      |      ^

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 2 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 2 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 2 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 2 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 8 ms 364 KB Output is correct
11 Correct 7 ms 364 KB Output is correct
12 Correct 7 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 6 ms 364 KB Output is correct
15 Correct 6 ms 364 KB Output is correct
16 Correct 8 ms 364 KB Output is correct
17 Correct 4 ms 364 KB Output is correct
18 Correct 6 ms 364 KB Output is correct
19 Correct 6 ms 364 KB Output is correct
20 Correct 9 ms 364 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 2 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 2 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 8 ms 364 KB Output is correct
11 Correct 7 ms 364 KB Output is correct
12 Correct 7 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 6 ms 364 KB Output is correct
15 Correct 6 ms 364 KB Output is correct
16 Correct 8 ms 364 KB Output is correct
17 Correct 4 ms 364 KB Output is correct
18 Correct 6 ms 364 KB Output is correct
19 Correct 6 ms 364 KB Output is correct
20 Correct 9 ms 364 KB Output is correct
21 Correct 28 ms 492 KB Output is correct
22 Correct 45 ms 492 KB Output is correct
23 Correct 17 ms 492 KB Output is correct
24 Correct 74 ms 512 KB Output is correct
25 Correct 60 ms 492 KB Output is correct
26 Correct 68 ms 492 KB Output is correct
27 Correct 66 ms 492 KB Output is correct
28 Correct 66 ms 492 KB Output is correct
29 Correct 66 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 67 ms 492 KB Output is correct
32 Correct 70 ms 468 KB Output is correct
33 Correct 68 ms 364 KB Output is correct
34 Correct 92 ms 364 KB Output is correct
35 Correct 68 ms 364 KB Output is correct
36 Correct 69 ms 492 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 2 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 2 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 8 ms 364 KB Output is correct
11 Correct 7 ms 364 KB Output is correct
12 Correct 7 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 6 ms 364 KB Output is correct
15 Correct 6 ms 364 KB Output is correct
16 Correct 8 ms 364 KB Output is correct
17 Correct 4 ms 364 KB Output is correct
18 Correct 6 ms 364 KB Output is correct
19 Correct 6 ms 364 KB Output is correct
20 Correct 9 ms 364 KB Output is correct
21 Correct 28 ms 492 KB Output is correct
22 Correct 45 ms 492 KB Output is correct
23 Correct 17 ms 492 KB Output is correct
24 Correct 74 ms 512 KB Output is correct
25 Correct 60 ms 492 KB Output is correct
26 Correct 68 ms 492 KB Output is correct
27 Correct 66 ms 492 KB Output is correct
28 Correct 66 ms 492 KB Output is correct
29 Correct 66 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 67 ms 492 KB Output is correct
32 Correct 70 ms 468 KB Output is correct
33 Correct 68 ms 364 KB Output is correct
34 Correct 92 ms 364 KB Output is correct
35 Correct 68 ms 364 KB Output is correct
36 Correct 69 ms 492 KB Output is correct
37 Correct 264 ms 596 KB Output is correct
38 Correct 274 ms 596 KB Output is correct
39 Correct 405 ms 364 KB Output is correct
40 Correct 484 ms 596 KB Output is correct
41 Correct 524 ms 468 KB Output is correct
42 Correct 421 ms 620 KB Output is correct
43 Correct 413 ms 852 KB Output is correct
44 Correct 415 ms 852 KB Output is correct
45 Correct 434 ms 852 KB Output is correct
46 Correct 479 ms 468 KB Output is correct
47 Correct 418 ms 620 KB Output is correct
48 Correct 431 ms 748 KB Output is correct
49 Correct 408 ms 492 KB Output is correct
50 Correct 412 ms 620 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 604 ms 852 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 2 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 2 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 8 ms 364 KB Output is correct
11 Correct 7 ms 364 KB Output is correct
12 Correct 7 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 6 ms 364 KB Output is correct
15 Correct 6 ms 364 KB Output is correct
16 Correct 8 ms 364 KB Output is correct
17 Correct 4 ms 364 KB Output is correct
18 Correct 6 ms 364 KB Output is correct
19 Correct 6 ms 364 KB Output is correct
20 Correct 9 ms 364 KB Output is correct
21 Correct 28 ms 492 KB Output is correct
22 Correct 45 ms 492 KB Output is correct
23 Correct 17 ms 492 KB Output is correct
24 Correct 74 ms 512 KB Output is correct
25 Correct 60 ms 492 KB Output is correct
26 Correct 68 ms 492 KB Output is correct
27 Correct 66 ms 492 KB Output is correct
28 Correct 66 ms 492 KB Output is correct
29 Correct 66 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 67 ms 492 KB Output is correct
32 Correct 70 ms 468 KB Output is correct
33 Correct 68 ms 364 KB Output is correct
34 Correct 92 ms 364 KB Output is correct
35 Correct 68 ms 364 KB Output is correct
36 Correct 69 ms 492 KB Output is correct
37 Correct 264 ms 596 KB Output is correct
38 Correct 274 ms 596 KB Output is correct
39 Correct 405 ms 364 KB Output is correct
40 Correct 484 ms 596 KB Output is correct
41 Correct 524 ms 468 KB Output is correct
42 Correct 421 ms 620 KB Output is correct
43 Correct 413 ms 852 KB Output is correct
44 Correct 415 ms 852 KB Output is correct
45 Correct 434 ms 852 KB Output is correct
46 Correct 479 ms 468 KB Output is correct
47 Correct 418 ms 620 KB Output is correct
48 Correct 431 ms 748 KB Output is correct
49 Correct 408 ms 492 KB Output is correct
50 Correct 412 ms 620 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 604 ms 852 KB Output is correct
53 Correct 599 ms 748 KB Output is correct
54 Correct 820 ms 852 KB Output is correct
55 Correct 853 ms 984 KB Output is correct
56 Correct 634 ms 852 KB Output is correct
57 Correct 832 ms 1112 KB Output is correct
58 Correct 828 ms 852 KB Output is correct
59 Correct 814 ms 880 KB Output is correct
60 Correct 1 ms 364 KB Output is correct
61 Correct 807 ms 984 KB Output is correct
62 Correct 695 ms 984 KB Output is correct
63 Correct 681 ms 984 KB Output is correct
64 Correct 676 ms 984 KB Output is correct
65 Correct 665 ms 492 KB Output is correct
66 Correct 645 ms 492 KB Output is correct

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 2 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 2 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 8 ms 364 KB Output is correct
11 Correct 7 ms 364 KB Output is correct
12 Correct 7 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 6 ms 364 KB Output is correct
15 Correct 6 ms 364 KB Output is correct
16 Correct 8 ms 364 KB Output is correct
17 Correct 4 ms 364 KB Output is correct
18 Correct 6 ms 364 KB Output is correct
19 Correct 6 ms 364 KB Output is correct
20 Correct 9 ms 364 KB Output is correct
21 Correct 28 ms 492 KB Output is correct
22 Correct 45 ms 492 KB Output is correct
23 Correct 17 ms 492 KB Output is correct
24 Correct 74 ms 512 KB Output is correct
25 Correct 60 ms 492 KB Output is correct
26 Correct 68 ms 492 KB Output is correct
27 Correct 66 ms 492 KB Output is correct
28 Correct 66 ms 492 KB Output is correct
29 Correct 66 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 67 ms 492 KB Output is correct
32 Correct 70 ms 468 KB Output is correct
33 Correct 68 ms 364 KB Output is correct
34 Correct 92 ms 364 KB Output is correct
35 Correct 68 ms 364 KB Output is correct
36 Correct 69 ms 492 KB Output is correct
37 Correct 264 ms 596 KB Output is correct
38 Correct 274 ms 596 KB Output is correct
39 Correct 405 ms 364 KB Output is correct
40 Correct 484 ms 596 KB Output is correct
41 Correct 524 ms 468 KB Output is correct
42 Correct 421 ms 620 KB Output is correct
43 Correct 413 ms 852 KB Output is correct
44 Correct 415 ms 852 KB Output is correct
45 Correct 434 ms 852 KB Output is correct
46 Correct 479 ms 468 KB Output is correct
47 Correct 418 ms 620 KB Output is correct
48 Correct 431 ms 748 KB Output is correct
49 Correct 408 ms 492 KB Output is correct
50 Correct 412 ms 620 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 604 ms 852 KB Output is correct
53 Correct 599 ms 748 KB Output is correct
54 Correct 820 ms 852 KB Output is correct
55 Correct 853 ms 984 KB Output is correct
56 Correct 634 ms 852 KB Output is correct
57 Correct 832 ms 1112 KB Output is correct
58 Correct 828 ms 852 KB Output is correct
59 Correct 814 ms 880 KB Output is correct
60 Correct 1 ms 364 KB Output is correct
61 Correct 807 ms 984 KB Output is correct
62 Correct 695 ms 984 KB Output is correct
63 Correct 681 ms 984 KB Output is correct
64 Correct 676 ms 984 KB Output is correct
65 Correct 665 ms 492 KB Output is correct
66 Correct 645 ms 492 KB Output is correct
67 Execution timed out 1045 ms 984 KB Time limit exceeded
68 Halted 0 ms 0 KB -