oj.uz

Submission #807394

# Submission time Handle Problem Language Result Execution time Memory
807394 2023-08-04T16:47:10 Z MODDI Nautilus (BOI19_nautilus) C++14
66 / 100
 1000 ms 3276 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
using namespace std;
#define pb push_back
#define mp make_pair
typedef long long ll;
typedef pair<long long, long long> pll;
typedef pair<int,int> pii;
typedef vector<long long> vl;
typedef vector<int> vi;
int r, c, n;
string str;
int mat[501][501];
int dp[2][501][501];
int main(){
	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 i = 0; i < r; i++){
//		for(int j = 0; j < c; j++){
//			cout<<dp[0][i][j]<<" ";
//		}
//		cout<<endl;
//	}
//	cout<<endl;
//	assert(false);
	for(int step = 1; step <= n; step++){
		for(int i = 0; i < r; i++){
			for(int j = 0; j < c; j++){
				dp[step%2][i][j] = 0;
			}
		}
		for(int i = 0; i < r; i++){
			for(int j = 0; j < c; j++){
				if((str[step-1] == 'E' || str[step-1] == '?') && mat[i][j] == 1 && dp[(step-1)%2][i][j-1] == 1 && j > 0)	
					dp[step%2][i][j] = 1;
				if((str[step-1] == 'W' || str[step-1] == '?') && mat[i][j] == 1 && dp[(step-1)%2][i][j+1] == 1 && j + 1 < c)
					dp[step%2][i][j] = 1;
				if((str[step-1] == 'N' || str[step-1] == '?') && i < r-1 && mat[i][j] == 1 && dp[(step-1)%2][i+1][j] == 1)
					dp[step%2][i][j] = 1;
				if((str[step-1]=='S' || str[step-1] == '?') && i > 0 && mat[i][j] == 1 && dp[(step-1)%2][i-1][j]==1)
					dp[step%2][i][j] = 1;
			}
		}
//		for(int i = 0; i < r; i++){
//			for(int j = 0; j < c; j++){
//				cout<<dp[step][i][j]<<" ";
//			}
//			cout<<endl;
//		}
//		cout<<endl;
	}
	ll ans = 0;
	for(int i = 0; i < r; i++){
		for(int j = 0; j < c;j ++){
			ans += dp[n%2][i][j];
		}
	}
	cout<<ans<<endl;
	return 0;
}

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 3156 KB Output is correct
2 Correct 6 ms 3252 KB Output is correct
3 Correct 8 ms 3176 KB Output is correct
4 Correct 7 ms 3156 KB Output is correct
5 Correct 5 ms 3156 KB Output is correct
6 Correct 3 ms 3156 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 3156 KB Output is correct
2 Correct 6 ms 3252 KB Output is correct
3 Correct 8 ms 3176 KB Output is correct
4 Correct 7 ms 3156 KB Output is correct
5 Correct 5 ms 3156 KB Output is correct
6 Correct 3 ms 3156 KB Output is correct
7 Correct 5 ms 3156 KB Output is correct
8 Correct 9 ms 3244 KB Output is correct
9 Correct 8 ms 3156 KB Output is correct
10 Correct 5 ms 3156 KB Output is correct
11 Correct 4 ms 3156 KB Output is correct
12 Correct 7 ms 3244 KB Output is correct
13 Correct 11 ms 3276 KB Output is correct
14 Correct 13 ms 3156 KB Output is correct
15 Correct 6 ms 3248 KB Output is correct
16 Correct 5 ms 3156 KB Output is correct
17 Correct 10 ms 3156 KB Output is correct
18 Correct 10 ms 3244 KB Output is correct
19 Correct 12 ms 3248 KB Output is correct
20 Correct 5 ms 3156 KB Output is correct
21 Correct 4 ms 3156 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 3156 KB Output is correct
2 Correct 6 ms 3252 KB Output is correct
3 Correct 8 ms 3176 KB Output is correct
4 Correct 7 ms 3156 KB Output is correct
5 Correct 5 ms 3156 KB Output is correct
6 Correct 3 ms 3156 KB Output is correct
7 Correct 5 ms 3156 KB Output is correct
8 Correct 9 ms 3244 KB Output is correct
9 Correct 8 ms 3156 KB Output is correct
10 Correct 5 ms 3156 KB Output is correct
11 Correct 4 ms 3156 KB Output is correct
12 Correct 7 ms 3244 KB Output is correct
13 Correct 11 ms 3276 KB Output is correct
14 Correct 13 ms 3156 KB Output is correct
15 Correct 6 ms 3248 KB Output is correct
16 Correct 5 ms 3156 KB Output is correct
17 Correct 10 ms 3156 KB Output is correct
18 Correct 10 ms 3244 KB Output is correct
19 Correct 12 ms 3248 KB Output is correct
20 Correct 5 ms 3156 KB Output is correct
21 Correct 4 ms 3156 KB Output is correct
22 Execution timed out 1071 ms 3156 KB Time limit exceeded
23 Halted 0 ms 0 KB -