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답안 #343689

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
343689 2021-01-04T11:41:29 Z Kalashnikov Bootfall (IZhO17_bootfall) C++17
65 / 100
 1000 ms 7116 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;
	}
	if(sum%2 || cnt[0]==cnt[1]) {
		cout << 0;
		return;
	}
	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(!dp[0][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:67:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   67 | main() {
      |      ^

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 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 1 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 0 ms 364 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 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 1 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 0 ms 364 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 1 ms 364 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 4 ms 748 KB Output is correct
20 Correct 8 ms 876 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 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 1 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 0 ms 364 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 1 ms 364 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 4 ms 748 KB Output is correct
20 Correct 8 ms 876 KB Output is correct
21 Correct 23 ms 1388 KB Output is correct
22 Correct 32 ms 1516 KB Output is correct
23 Correct 16 ms 1260 KB Output is correct
24 Correct 49 ms 1900 KB Output is correct
25 Correct 50 ms 1900 KB Output is correct
26 Correct 55 ms 2028 KB Output is correct
27 Correct 55 ms 1900 KB Output is correct
28 Correct 55 ms 1900 KB Output is correct
29 Correct 56 ms 1920 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 68 ms 2028 KB Output is correct
32 Correct 56 ms 2028 KB Output is correct
33 Correct 55 ms 1900 KB Output is correct
34 Correct 56 ms 1900 KB Output is correct
35 Correct 59 ms 1900 KB Output is correct
36 Correct 57 ms 2028 KB Output is correct

Subtask #4
16.0 / 16.0

# 결과 실행 시간 메모리 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 1 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 0 ms 364 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 1 ms 364 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 4 ms 748 KB Output is correct
20 Correct 8 ms 876 KB Output is correct
21 Correct 23 ms 1388 KB Output is correct
22 Correct 32 ms 1516 KB Output is correct
23 Correct 16 ms 1260 KB Output is correct
24 Correct 49 ms 1900 KB Output is correct
25 Correct 50 ms 1900 KB Output is correct
26 Correct 55 ms 2028 KB Output is correct
27 Correct 55 ms 1900 KB Output is correct
28 Correct 55 ms 1900 KB Output is correct
29 Correct 56 ms 1920 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 68 ms 2028 KB Output is correct
32 Correct 56 ms 2028 KB Output is correct
33 Correct 55 ms 1900 KB Output is correct
34 Correct 56 ms 1900 KB Output is correct
35 Correct 59 ms 1900 KB Output is correct
36 Correct 57 ms 2028 KB Output is correct
37 Correct 218 ms 3692 KB Output is correct
38 Correct 260 ms 3564 KB Output is correct
39 Correct 355 ms 4204 KB Output is correct
40 Correct 436 ms 4716 KB Output is correct
41 Correct 394 ms 4588 KB Output is correct
42 Correct 360 ms 4492 KB Output is correct
43 Correct 331 ms 4460 KB Output is correct
44 Correct 338 ms 4588 KB Output is correct
45 Correct 346 ms 4588 KB Output is correct
46 Correct 407 ms 4588 KB Output is correct
47 Correct 343 ms 4460 KB Output is correct
48 Correct 372 ms 4588 KB Output is correct
49 Correct 345 ms 4460 KB Output is correct
50 Correct 398 ms 4460 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 400 ms 4972 KB Output is correct

Subtask #5
21.0 / 21.0

# 결과 실행 시간 메모리 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 1 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 0 ms 364 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 1 ms 364 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 4 ms 748 KB Output is correct
20 Correct 8 ms 876 KB Output is correct
21 Correct 23 ms 1388 KB Output is correct
22 Correct 32 ms 1516 KB Output is correct
23 Correct 16 ms 1260 KB Output is correct
24 Correct 49 ms 1900 KB Output is correct
25 Correct 50 ms 1900 KB Output is correct
26 Correct 55 ms 2028 KB Output is correct
27 Correct 55 ms 1900 KB Output is correct
28 Correct 55 ms 1900 KB Output is correct
29 Correct 56 ms 1920 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 68 ms 2028 KB Output is correct
32 Correct 56 ms 2028 KB Output is correct
33 Correct 55 ms 1900 KB Output is correct
34 Correct 56 ms 1900 KB Output is correct
35 Correct 59 ms 1900 KB Output is correct
36 Correct 57 ms 2028 KB Output is correct
37 Correct 218 ms 3692 KB Output is correct
38 Correct 260 ms 3564 KB Output is correct
39 Correct 355 ms 4204 KB Output is correct
40 Correct 436 ms 4716 KB Output is correct
41 Correct 394 ms 4588 KB Output is correct
42 Correct 360 ms 4492 KB Output is correct
43 Correct 331 ms 4460 KB Output is correct
44 Correct 338 ms 4588 KB Output is correct
45 Correct 346 ms 4588 KB Output is correct
46 Correct 407 ms 4588 KB Output is correct
47 Correct 343 ms 4460 KB Output is correct
48 Correct 372 ms 4588 KB Output is correct
49 Correct 345 ms 4460 KB Output is correct
50 Correct 398 ms 4460 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 400 ms 4972 KB Output is correct
53 Correct 488 ms 5356 KB Output is correct
54 Correct 707 ms 6132 KB Output is correct
55 Correct 673 ms 6512 KB Output is correct
56 Correct 510 ms 5484 KB Output is correct
57 Correct 664 ms 6492 KB Output is correct
58 Correct 680 ms 6204 KB Output is correct
59 Correct 670 ms 6384 KB Output is correct
60 Correct 1 ms 364 KB Output is correct
61 Correct 666 ms 6256 KB Output is correct
62 Correct 559 ms 5872 KB Output is correct
63 Correct 562 ms 6164 KB Output is correct
64 Correct 543 ms 5872 KB Output is correct
65 Correct 538 ms 5228 KB Output is correct
66 Correct 525 ms 5228 KB Output is correct

Subtask #6
0 / 35.0

# 결과 실행 시간 메모리 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 1 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 0 ms 364 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 1 ms 364 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 4 ms 748 KB Output is correct
20 Correct 8 ms 876 KB Output is correct
21 Correct 23 ms 1388 KB Output is correct
22 Correct 32 ms 1516 KB Output is correct
23 Correct 16 ms 1260 KB Output is correct
24 Correct 49 ms 1900 KB Output is correct
25 Correct 50 ms 1900 KB Output is correct
26 Correct 55 ms 2028 KB Output is correct
27 Correct 55 ms 1900 KB Output is correct
28 Correct 55 ms 1900 KB Output is correct
29 Correct 56 ms 1920 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 68 ms 2028 KB Output is correct
32 Correct 56 ms 2028 KB Output is correct
33 Correct 55 ms 1900 KB Output is correct
34 Correct 56 ms 1900 KB Output is correct
35 Correct 59 ms 1900 KB Output is correct
36 Correct 57 ms 2028 KB Output is correct
37 Correct 218 ms 3692 KB Output is correct
38 Correct 260 ms 3564 KB Output is correct
39 Correct 355 ms 4204 KB Output is correct
40 Correct 436 ms 4716 KB Output is correct
41 Correct 394 ms 4588 KB Output is correct
42 Correct 360 ms 4492 KB Output is correct
43 Correct 331 ms 4460 KB Output is correct
44 Correct 338 ms 4588 KB Output is correct
45 Correct 346 ms 4588 KB Output is correct
46 Correct 407 ms 4588 KB Output is correct
47 Correct 343 ms 4460 KB Output is correct
48 Correct 372 ms 4588 KB Output is correct
49 Correct 345 ms 4460 KB Output is correct
50 Correct 398 ms 4460 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 400 ms 4972 KB Output is correct
53 Correct 488 ms 5356 KB Output is correct
54 Correct 707 ms 6132 KB Output is correct
55 Correct 673 ms 6512 KB Output is correct
56 Correct 510 ms 5484 KB Output is correct
57 Correct 664 ms 6492 KB Output is correct
58 Correct 680 ms 6204 KB Output is correct
59 Correct 670 ms 6384 KB Output is correct
60 Correct 1 ms 364 KB Output is correct
61 Correct 666 ms 6256 KB Output is correct
62 Correct 559 ms 5872 KB Output is correct
63 Correct 562 ms 6164 KB Output is correct
64 Correct 543 ms 5872 KB Output is correct
65 Correct 538 ms 5228 KB Output is correct
66 Correct 525 ms 5228 KB Output is correct
67 Correct 877 ms 7116 KB Output is correct
68 Execution timed out 1088 ms 6532 KB Time limit exceeded
69 Halted 0 ms 0 KB -