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Submission #493806

# Submission time Handle Problem Language Result Execution time Memory
493806 2021-12-13T03:09:45 Z Haruto810198 Nautilus (BOI19_nautilus) C++17
66 / 100
 1000 ms 9880 KB 
#include <bits/stdc++.h>

using namespace std;

#define int long long
#define double long double

#define FOR(i, l, r, d) for(int i=(l); i<=(r); i+=(d))
#define szof(x) ((int)(x).size())

#define vi vector<int>
#define pii pair<int, int>

#define F first
#define S second

#define pb push_back
#define eb emplace_back
#define mkp make_pair

const int INF = INT_MAX;
const int LNF = INF*INF;
const int MOD = 1000000007;
const int mod = 998244353;
const double eps = 1e-12;

#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")

const int MAX = 5010;

int r, c, m;
string str;
vector<bitset<MAX>> arr(MAX), dp(MAX), newdp(MAX);
int res;

signed main(){
	
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	
	cin>>r>>c>>m;
	FOR(i, 1, r, 1){
		FOR(j, 1, c, 1){
			char ch;
			cin>>ch;
			if(ch == '.') dp[i][c+1-j] = arr[i][c+1-j] = 1;
		}
	}

	cin>>str;
	for(char ch : str){
			
		if(ch == 'N'){
			FOR(i, 1, r-1, 1){
				newdp[i] = dp[i+1] & arr[i];
			}
			newdp[r].reset();
		}
		if(ch == 'S'){
			newdp[1].reset();
			FOR(i, 2, r, 1){
				newdp[i] = dp[i-1] & arr[i];
			}
		}
		if(ch == 'E'){
			FOR(i, 1, r, 1){
				newdp[i] = (dp[i] >> 1) & arr[i];
			}
		}
		if(ch == 'W'){
			FOR(i, 1, r, 1){
				newdp[i] = (dp[i] << 1) & arr[i];
			}
		}
		
		if(ch == '?'){
			newdp[1] = dp[2];
			FOR(i, 2, r-1, 1){
				newdp[i] = dp[i-1] | dp[i+1];
			}
			newdp[r] = dp[r-1];
			
			FOR(i, 1, r, 1){
				newdp[i] |= (dp[i] >> 1) | (dp[i] << 1);
			}

			FOR(i, 1, r, 1){
				newdp[i] &= arr[i];
			}
		}
		
		swap(dp, newdp);
		
	}

	FOR(i, 1, r, 1){
		FOR(j, 1, c, 1){
			res += dp[i][j];
		}
	}

	cout<<res<<'\n';
	
	return 0;

}

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9548 KB Output is correct
2 Correct 5 ms 9548 KB Output is correct
3 Correct 5 ms 9504 KB Output is correct
4 Correct 5 ms 9548 KB Output is correct
5 Correct 6 ms 9548 KB Output is correct
6 Correct 5 ms 9548 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9548 KB Output is correct
2 Correct 5 ms 9548 KB Output is correct
3 Correct 5 ms 9504 KB Output is correct
4 Correct 5 ms 9548 KB Output is correct
5 Correct 6 ms 9548 KB Output is correct
6 Correct 5 ms 9548 KB Output is correct
7 Correct 6 ms 9600 KB Output is correct
8 Correct 7 ms 9548 KB Output is correct
9 Correct 7 ms 9548 KB Output is correct
10 Correct 8 ms 9548 KB Output is correct
11 Correct 10 ms 9548 KB Output is correct
12 Correct 9 ms 9620 KB Output is correct
13 Correct 11 ms 9548 KB Output is correct
14 Correct 10 ms 9552 KB Output is correct
15 Correct 8 ms 9548 KB Output is correct
16 Correct 8 ms 9548 KB Output is correct
17 Correct 8 ms 9548 KB Output is correct
18 Correct 9 ms 9548 KB Output is correct
19 Correct 8 ms 9548 KB Output is correct
20 Correct 8 ms 9548 KB Output is correct
21 Correct 8 ms 9548 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9548 KB Output is correct
2 Correct 5 ms 9548 KB Output is correct
3 Correct 5 ms 9504 KB Output is correct
4 Correct 5 ms 9548 KB Output is correct
5 Correct 6 ms 9548 KB Output is correct
6 Correct 5 ms 9548 KB Output is correct
7 Correct 6 ms 9600 KB Output is correct
8 Correct 7 ms 9548 KB Output is correct
9 Correct 7 ms 9548 KB Output is correct
10 Correct 8 ms 9548 KB Output is correct
11 Correct 10 ms 9548 KB Output is correct
12 Correct 9 ms 9620 KB Output is correct
13 Correct 11 ms 9548 KB Output is correct
14 Correct 10 ms 9552 KB Output is correct
15 Correct 8 ms 9548 KB Output is correct
16 Correct 8 ms 9548 KB Output is correct
17 Correct 8 ms 9548 KB Output is correct
18 Correct 9 ms 9548 KB Output is correct
19 Correct 8 ms 9548 KB Output is correct
20 Correct 8 ms 9548 KB Output is correct
21 Correct 8 ms 9548 KB Output is correct
22 Correct 654 ms 9628 KB Output is correct
23 Correct 675 ms 9624 KB Output is correct
24 Correct 712 ms 9620 KB Output is correct
25 Correct 625 ms 9628 KB Output is correct
26 Correct 634 ms 9548 KB Output is correct
27 Correct 953 ms 9620 KB Output is correct
28 Correct 890 ms 9880 KB Output is correct
29 Correct 934 ms 9876 KB Output is correct
30 Correct 953 ms 9876 KB Output is correct
31 Correct 929 ms 9880 KB Output is correct
32 Execution timed out 1083 ms 9804 KB Time limit exceeded
33 Halted 0 ms 0 KB -