oj.uz

Submission #923035

# Submission time Handle Problem Language Result Execution time Memory
923035 2024-02-06T13:06:47 Z penguin133 Bootfall (IZhO17_bootfall) C++17
28 / 100
 210 ms 8280 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long
#define pi pair<int, int>
#define pii pair<int, pi>
#define fi first
#define se second
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

bitset <501*55*2>dp[505], dp2[505];
int n, A[505];
const int os = 501 * 55;

bool chk(int a, int b){
	if(os - a - b >= 0 && dp[n & 1][os - a - b])return 1;
	if(os - a + b >= 0 && os - a + b <= 2 * os && dp[n & 1][os - a + b])return 1;
	if(os + a - b >= 0 && os + a - b <= 2 * os && dp[n & 1][os + a - b])return 1;
	if(os + a + b <= 2 * os && dp[n & 1][os + a + b])return 1;
	return 0;
}

void solve(){
	cin >> n;
	for(int i = 1; i <= n; i++)cin >> A[i];
	//for(int i = 0; i <= 2 * os; i++)dp[0][i] = 0
	dp[0][os] = dp2[n + 1][os] = 1;
	for(int i = 1; i <= n; i++){
		dp[i] |= (dp[i - 1] >> A[i]);
		dp[i] |= (dp[i - 1] << A[i]);
	}
	for(int i = n; i >= 1; i--){
		dp2[i] |= (dp2[i + 1] >> A[i]);
		dp2[i] |= (dp2[i + 1] << A[i]);
	}
	if(!dp[n][os]){
		cout << 0;
		return;
	}
	set <int> s;
	for(int i = 1; i <= os; i++)s.insert(i);
	for(int i = 1; i <= n; i++){
		/*
		bitset <501*501*2> tmp = dp[i - 1], tmp2;
		for(int j = 0; j <= os; j++){
			if(dp2[i + 1][os - j] || dp2[i + 1][os + j]){
				if(1)tmp2 |= (tmp >> j), tmp2 |= (tmp << j);
			}
		}
		*/
		bitset <501 * 55 * 2> tmp;
		tmp[os] = 1;
		for(int j = 1; j <= n; j++){
			if(j == i)continue;
			tmp = (tmp >> A[j]) | (tmp << A[j]);
		}
		for(int j = 0; j <= os; j++)if(!tmp[os - j] && !tmp[os + j])s.erase(j);
	}
	cout << (int)s.size() << '\n';
	for(auto i : s)cout << i << ' ';
}

main(){
	ios::sync_with_stdio(0);cin.tie(0);
	int tc = 1;
	//cin >> tc;
	for(int tc1=1;tc1<=tc;tc1++){
		// cout << "Case #" << tc1 << ": ";
		solve();
	}
}

Compilation message

bootfall.cpp:66:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   66 | main(){
      | ^~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 3676 KB Output is correct
2 Correct 6 ms 3812 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 5 ms 3676 KB Output is correct
5 Correct 7 ms 3676 KB Output is correct
6 Correct 6 ms 3676 KB Output is correct
7 Correct 7 ms 3672 KB Output is correct
8 Correct 11 ms 3924 KB Output is correct
9 Correct 9 ms 3676 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 3676 KB Output is correct
2 Correct 6 ms 3812 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 5 ms 3676 KB Output is correct
5 Correct 7 ms 3676 KB Output is correct
6 Correct 6 ms 3676 KB Output is correct
7 Correct 7 ms 3672 KB Output is correct
8 Correct 11 ms 3924 KB Output is correct
9 Correct 9 ms 3676 KB Output is correct
10 Correct 11 ms 5864 KB Output is correct
11 Correct 16 ms 6060 KB Output is correct
12 Correct 16 ms 5980 KB Output is correct
13 Correct 14 ms 5976 KB Output is correct
14 Correct 12 ms 5860 KB Output is correct
15 Correct 11 ms 6060 KB Output is correct
16 Correct 12 ms 5980 KB Output is correct
17 Correct 12 ms 3964 KB Output is correct
18 Correct 10 ms 5876 KB Output is correct
19 Correct 14 ms 5980 KB Output is correct
20 Correct 16 ms 5980 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 3676 KB Output is correct
2 Correct 6 ms 3812 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 5 ms 3676 KB Output is correct
5 Correct 7 ms 3676 KB Output is correct
6 Correct 6 ms 3676 KB Output is correct
7 Correct 7 ms 3672 KB Output is correct
8 Correct 11 ms 3924 KB Output is correct
9 Correct 9 ms 3676 KB Output is correct
10 Correct 11 ms 5864 KB Output is correct
11 Correct 16 ms 6060 KB Output is correct
12 Correct 16 ms 5980 KB Output is correct
13 Correct 14 ms 5976 KB Output is correct
14 Correct 12 ms 5860 KB Output is correct
15 Correct 11 ms 6060 KB Output is correct
16 Correct 12 ms 5980 KB Output is correct
17 Correct 12 ms 3964 KB Output is correct
18 Correct 10 ms 5876 KB Output is correct
19 Correct 14 ms 5980 KB Output is correct
20 Correct 16 ms 5980 KB Output is correct
21 Correct 44 ms 6032 KB Output is correct
22 Correct 50 ms 6048 KB Output is correct
23 Correct 22 ms 6056 KB Output is correct
24 Correct 70 ms 6028 KB Output is correct
25 Correct 55 ms 5976 KB Output is correct
26 Correct 59 ms 6044 KB Output is correct
27 Correct 74 ms 6040 KB Output is correct
28 Correct 78 ms 6032 KB Output is correct
29 Correct 47 ms 6060 KB Output is correct
30 Correct 37 ms 5976 KB Output is correct
31 Correct 78 ms 6032 KB Output is correct
32 Correct 54 ms 6052 KB Output is correct
33 Correct 43 ms 5976 KB Output is correct
34 Correct 50 ms 6032 KB Output is correct
35 Correct 40 ms 5980 KB Output is correct
36 Correct 80 ms 5976 KB Output is correct

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 3676 KB Output is correct
2 Correct 6 ms 3812 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 5 ms 3676 KB Output is correct
5 Correct 7 ms 3676 KB Output is correct
6 Correct 6 ms 3676 KB Output is correct
7 Correct 7 ms 3672 KB Output is correct
8 Correct 11 ms 3924 KB Output is correct
9 Correct 9 ms 3676 KB Output is correct
10 Correct 11 ms 5864 KB Output is correct
11 Correct 16 ms 6060 KB Output is correct
12 Correct 16 ms 5980 KB Output is correct
13 Correct 14 ms 5976 KB Output is correct
14 Correct 12 ms 5860 KB Output is correct
15 Correct 11 ms 6060 KB Output is correct
16 Correct 12 ms 5980 KB Output is correct
17 Correct 12 ms 3964 KB Output is correct
18 Correct 10 ms 5876 KB Output is correct
19 Correct 14 ms 5980 KB Output is correct
20 Correct 16 ms 5980 KB Output is correct
21 Correct 44 ms 6032 KB Output is correct
22 Correct 50 ms 6048 KB Output is correct
23 Correct 22 ms 6056 KB Output is correct
24 Correct 70 ms 6028 KB Output is correct
25 Correct 55 ms 5976 KB Output is correct
26 Correct 59 ms 6044 KB Output is correct
27 Correct 74 ms 6040 KB Output is correct
28 Correct 78 ms 6032 KB Output is correct
29 Correct 47 ms 6060 KB Output is correct
30 Correct 37 ms 5976 KB Output is correct
31 Correct 78 ms 6032 KB Output is correct
32 Correct 54 ms 6052 KB Output is correct
33 Correct 43 ms 5976 KB Output is correct
34 Correct 50 ms 6032 KB Output is correct
35 Correct 40 ms 5980 KB Output is correct
36 Correct 80 ms 5976 KB Output is correct
37 Correct 203 ms 8024 KB Output is correct
38 Correct 210 ms 8280 KB Output is correct
39 Incorrect 181 ms 8088 KB Output isn't correct
40 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 3676 KB Output is correct
2 Correct 6 ms 3812 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 5 ms 3676 KB Output is correct
5 Correct 7 ms 3676 KB Output is correct
6 Correct 6 ms 3676 KB Output is correct
7 Correct 7 ms 3672 KB Output is correct
8 Correct 11 ms 3924 KB Output is correct
9 Correct 9 ms 3676 KB Output is correct
10 Correct 11 ms 5864 KB Output is correct
11 Correct 16 ms 6060 KB Output is correct
12 Correct 16 ms 5980 KB Output is correct
13 Correct 14 ms 5976 KB Output is correct
14 Correct 12 ms 5860 KB Output is correct
15 Correct 11 ms 6060 KB Output is correct
16 Correct 12 ms 5980 KB Output is correct
17 Correct 12 ms 3964 KB Output is correct
18 Correct 10 ms 5876 KB Output is correct
19 Correct 14 ms 5980 KB Output is correct
20 Correct 16 ms 5980 KB Output is correct
21 Correct 44 ms 6032 KB Output is correct
22 Correct 50 ms 6048 KB Output is correct
23 Correct 22 ms 6056 KB Output is correct
24 Correct 70 ms 6028 KB Output is correct
25 Correct 55 ms 5976 KB Output is correct
26 Correct 59 ms 6044 KB Output is correct
27 Correct 74 ms 6040 KB Output is correct
28 Correct 78 ms 6032 KB Output is correct
29 Correct 47 ms 6060 KB Output is correct
30 Correct 37 ms 5976 KB Output is correct
31 Correct 78 ms 6032 KB Output is correct
32 Correct 54 ms 6052 KB Output is correct
33 Correct 43 ms 5976 KB Output is correct
34 Correct 50 ms 6032 KB Output is correct
35 Correct 40 ms 5980 KB Output is correct
36 Correct 80 ms 5976 KB Output is correct
37 Correct 203 ms 8024 KB Output is correct
38 Correct 210 ms 8280 KB Output is correct
39 Incorrect 181 ms 8088 KB Output isn't correct
40 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 3676 KB Output is correct
2 Correct 6 ms 3812 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 5 ms 3676 KB Output is correct
5 Correct 7 ms 3676 KB Output is correct
6 Correct 6 ms 3676 KB Output is correct
7 Correct 7 ms 3672 KB Output is correct
8 Correct 11 ms 3924 KB Output is correct
9 Correct 9 ms 3676 KB Output is correct
10 Correct 11 ms 5864 KB Output is correct
11 Correct 16 ms 6060 KB Output is correct
12 Correct 16 ms 5980 KB Output is correct
13 Correct 14 ms 5976 KB Output is correct
14 Correct 12 ms 5860 KB Output is correct
15 Correct 11 ms 6060 KB Output is correct
16 Correct 12 ms 5980 KB Output is correct
17 Correct 12 ms 3964 KB Output is correct
18 Correct 10 ms 5876 KB Output is correct
19 Correct 14 ms 5980 KB Output is correct
20 Correct 16 ms 5980 KB Output is correct
21 Correct 44 ms 6032 KB Output is correct
22 Correct 50 ms 6048 KB Output is correct
23 Correct 22 ms 6056 KB Output is correct
24 Correct 70 ms 6028 KB Output is correct
25 Correct 55 ms 5976 KB Output is correct
26 Correct 59 ms 6044 KB Output is correct
27 Correct 74 ms 6040 KB Output is correct
28 Correct 78 ms 6032 KB Output is correct
29 Correct 47 ms 6060 KB Output is correct
30 Correct 37 ms 5976 KB Output is correct
31 Correct 78 ms 6032 KB Output is correct
32 Correct 54 ms 6052 KB Output is correct
33 Correct 43 ms 5976 KB Output is correct
34 Correct 50 ms 6032 KB Output is correct
35 Correct 40 ms 5980 KB Output is correct
36 Correct 80 ms 5976 KB Output is correct
37 Correct 203 ms 8024 KB Output is correct
38 Correct 210 ms 8280 KB Output is correct
39 Incorrect 181 ms 8088 KB Output isn't correct
40 Halted 0 ms 0 KB -