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Submission #1087136

# Submission time Handle Problem Language Result Execution time Memory
1087136 2024-09-12T08:43:38 Z ZeroCool Nautilus (BOI19_nautilus) C++14
100 / 100
 171 ms 1116 KB 
#include <bits/stdc++.h>

using namespace std;

#define ar array
#define int long long
#define ld long double
#define crash assert(69 == 420)

const int MOD = 1e9 + 7;
const int INF = 1e17;
const int N = 525;
const int LOG = 20;

bitset<N> dp[2][N];
bitset<N> A[N];

signed main(){ios_base::sync_with_stdio(false);cin.tie(0);
	int n, m, k;
	cin>>n>>m>>k;
	string s[n];
	for(int i = 0;i < n;i++)cin>>s[i];
	for(int i = 0;i < n;i++){
		for(int j = 0;j < m;j++){
			A[i][j] = (s[i][j] == '.');
		}

	}
	string t;
	cin>>t;
	for(int i = 0;i < n;i++){
		for(int j = 0;j < m;j++)dp[0][i][j] = A[i][j];
	}
	int p = 0;
	for(int i = 0;i < k;i++){
		for(int j = 0; j < n;j++)dp[p ^ 1][j].reset();

		for(int j = 0;j < n;j++){
			if(t[i] == 'W' || t[i] == '?')dp[p ^ 1][j] |= (A[j] & (dp[p][j] >> 1));
			if(t[i] == 'E' || t[i] == '?')dp[p ^ 1][j] |= (A[j] & (dp[p][j] << 1));
			if((t[i] == 'N' || t[i] == '?') && j + 1 < n)dp[p ^ 1][j] |= (dp[p][j + 1] & A[j]);
			if((t[i] == 'S' || t[i] == '?') && j - 1 >= 0)dp[p ^ 1][j] |= (dp[p][j - 1] & A[j]);

		}
		p ^= 1;
	}
	int ans = 0 ;
	for(int i = 0;i < n;i++){
		ans += dp[p][i].count();
		//for(int j = 0;j < m;j++)cout<<dp[p][i][j]<<" ";
		//cout<<'\n';
	}
	cout<<ans;
}

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 2 ms 348 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 464 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 404 KB Output is correct
18 Correct 2 ms 468 KB Output is correct
19 Correct 1 ms 472 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct

Subtask #3
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 2 ms 348 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 464 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 404 KB Output is correct
18 Correct 2 ms 468 KB Output is correct
19 Correct 1 ms 472 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 87 ms 1076 KB Output is correct
23 Correct 91 ms 860 KB Output is correct
24 Correct 86 ms 1072 KB Output is correct
25 Correct 80 ms 1080 KB Output is correct
26 Correct 83 ms 860 KB Output is correct
27 Correct 127 ms 860 KB Output is correct
28 Correct 130 ms 860 KB Output is correct
29 Correct 126 ms 860 KB Output is correct
30 Correct 130 ms 1116 KB Output is correct
31 Correct 132 ms 856 KB Output is correct
32 Correct 171 ms 860 KB Output is correct
33 Correct 161 ms 1072 KB Output is correct
34 Correct 155 ms 856 KB Output is correct
35 Correct 169 ms 860 KB Output is correct
36 Correct 155 ms 860 KB Output is correct