oj.uz

Submission #807406

# Submission time Handle Problem Language Result Execution time Memory
807406 2023-08-04T16:54:43 Z MODDI Nautilus (BOI19_nautilus) C++14
66 / 100
 1000 ms 3284 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
using namespace std;
int r, c, n;
string str;
int mat[501][501];
int dp[2][501][501];
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
	cin>>r>>c>>n;
	memset(dp, 0, sizeof dp);
	memset(mat, 0, sizeof mat);
	for(int i = 0; i < r; i++){
		string s;
		cin>>s;
		for(int j = 0; j < c; j++){
			if(s[j] == '.'){
				mat[i][j] = 1;
				dp[0][i][j] = 1;
			}
		}
	}
	cin>>str;
	for(int step = 1; step <= n; step++){
		int sega = step & 1, pret = (step-1) & 1;
		for(int i = 0; i < r; i++){
			for(int j = 0; j < c; j++){
				dp[sega][i][j] = 0;
			}
		}
		for(int i = 0; i < r; i++){
			for(int j = 0; j < c; j++){
				if(mat[i][j] == 1){
					if((str[step-1] == 'E' || str[step-1] == '?') && dp[pret][i][j-1] == 1 && j > 0)	
						dp[sega][i][j] = 1;
					if((str[step-1] == 'W' || str[step-1] == '?') && dp[pret][i][j+1] == 1 && j + 1 < c)
						dp[sega][i][j] = 1;
					if((str[step-1] == 'N' || str[step-1] == '?') && i < r-1 && dp[pret][i+1][j] == 1)
						dp[sega][i][j] = 1;
					if((str[step-1]=='S' || str[step-1] == '?') && i > 0 && dp[pret][i-1][j]==1)
						dp[sega][i][j] = 1;
				}
				else	continue;
			}
		}
	}
	long long ans = 0;
	int sega = n & 1;
	for(int i = 0; i < r; i++){
		for(int j = 0; j < c;j ++){
			ans += dp[sega][i][j];
		}
	}
	cout<<ans<<"\n";
	return 0;
}

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3156 KB Output is correct
2 Correct 6 ms 3268 KB Output is correct
3 Correct 6 ms 3156 KB Output is correct
4 Correct 7 ms 3156 KB Output is correct
5 Correct 4 ms 3156 KB Output is correct
6 Correct 2 ms 3156 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3156 KB Output is correct
2 Correct 6 ms 3268 KB Output is correct
3 Correct 6 ms 3156 KB Output is correct
4 Correct 7 ms 3156 KB Output is correct
5 Correct 4 ms 3156 KB Output is correct
6 Correct 2 ms 3156 KB Output is correct
7 Correct 6 ms 3156 KB Output is correct
8 Correct 9 ms 3156 KB Output is correct
9 Correct 7 ms 3268 KB Output is correct
10 Correct 4 ms 3156 KB Output is correct
11 Correct 2 ms 3156 KB Output is correct
12 Correct 6 ms 3276 KB Output is correct
13 Correct 9 ms 3156 KB Output is correct
14 Correct 11 ms 3276 KB Output is correct
15 Correct 4 ms 3156 KB Output is correct
16 Correct 2 ms 3156 KB Output is correct
17 Correct 6 ms 3156 KB Output is correct
18 Correct 8 ms 3276 KB Output is correct
19 Correct 9 ms 3272 KB Output is correct
20 Correct 4 ms 3156 KB Output is correct
21 Correct 2 ms 3156 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3156 KB Output is correct
2 Correct 6 ms 3268 KB Output is correct
3 Correct 6 ms 3156 KB Output is correct
4 Correct 7 ms 3156 KB Output is correct
5 Correct 4 ms 3156 KB Output is correct
6 Correct 2 ms 3156 KB Output is correct
7 Correct 6 ms 3156 KB Output is correct
8 Correct 9 ms 3156 KB Output is correct
9 Correct 7 ms 3268 KB Output is correct
10 Correct 4 ms 3156 KB Output is correct
11 Correct 2 ms 3156 KB Output is correct
12 Correct 6 ms 3276 KB Output is correct
13 Correct 9 ms 3156 KB Output is correct
14 Correct 11 ms 3276 KB Output is correct
15 Correct 4 ms 3156 KB Output is correct
16 Correct 2 ms 3156 KB Output is correct
17 Correct 6 ms 3156 KB Output is correct
18 Correct 8 ms 3276 KB Output is correct
19 Correct 9 ms 3272 KB Output is correct
20 Correct 4 ms 3156 KB Output is correct
21 Correct 2 ms 3156 KB Output is correct
22 Execution timed out 1061 ms 3284 KB Time limit exceeded
23 Halted 0 ms 0 KB -