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Submission #493796

# Submission time Handle Problem Language Result Execution time Memory
493796 2021-12-13T02:53:07 Z Haruto810198 Nautilus (BOI19_nautilus) C++17
66 / 100
 1000 ms 1484 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;
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){
				
		FOR(i, 1, r, 1){
			newdp[i].reset();
		}
		
		if(ch == 'N'){
			FOR(i, 1, r-1, 1){
				newdp[i] |= dp[i+1] & arr[i];
			}
		}
		if(ch == 'S'){
			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 == '?'){
			FOR(i, 1, r-1, 1){
				newdp[i] |= dp[i+1] & arr[i];
			}
			FOR(i, 2, r, 1){
				newdp[i] |= dp[i-1] & arr[i];
			}
			
			FOR(i, 1, r, 1){
				newdp[i] |= ((dp[i] >> 1) | (dp[i] << 1)) & arr[i];
			}
		}
		
		FOR(i, 1, r, 1){
			dp[i] = newdp[i];
		}
		
	}

	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 3 ms 460 KB Output is correct
2 Correct 3 ms 460 KB Output is correct
3 Correct 3 ms 460 KB Output is correct
4 Correct 3 ms 460 KB Output is correct
5 Correct 3 ms 532 KB Output is correct
6 Correct 4 ms 460 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 460 KB Output is correct
2 Correct 3 ms 460 KB Output is correct
3 Correct 3 ms 460 KB Output is correct
4 Correct 3 ms 460 KB Output is correct
5 Correct 3 ms 532 KB Output is correct
6 Correct 4 ms 460 KB Output is correct
7 Correct 5 ms 460 KB Output is correct
8 Correct 5 ms 460 KB Output is correct
9 Correct 6 ms 460 KB Output is correct
10 Correct 8 ms 460 KB Output is correct
11 Correct 5 ms 472 KB Output is correct
12 Correct 7 ms 460 KB Output is correct
13 Correct 8 ms 460 KB Output is correct
14 Correct 7 ms 460 KB Output is correct
15 Correct 8 ms 460 KB Output is correct
16 Correct 8 ms 460 KB Output is correct
17 Correct 16 ms 524 KB Output is correct
18 Correct 12 ms 460 KB Output is correct
19 Correct 9 ms 460 KB Output is correct
20 Correct 10 ms 524 KB Output is correct
21 Correct 14 ms 456 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 460 KB Output is correct
2 Correct 3 ms 460 KB Output is correct
3 Correct 3 ms 460 KB Output is correct
4 Correct 3 ms 460 KB Output is correct
5 Correct 3 ms 532 KB Output is correct
6 Correct 4 ms 460 KB Output is correct
7 Correct 5 ms 460 KB Output is correct
8 Correct 5 ms 460 KB Output is correct
9 Correct 6 ms 460 KB Output is correct
10 Correct 8 ms 460 KB Output is correct
11 Correct 5 ms 472 KB Output is correct
12 Correct 7 ms 460 KB Output is correct
13 Correct 8 ms 460 KB Output is correct
14 Correct 7 ms 460 KB Output is correct
15 Correct 8 ms 460 KB Output is correct
16 Correct 8 ms 460 KB Output is correct
17 Correct 16 ms 524 KB Output is correct
18 Correct 12 ms 460 KB Output is correct
19 Correct 9 ms 460 KB Output is correct
20 Correct 10 ms 524 KB Output is correct
21 Correct 14 ms 456 KB Output is correct
22 Execution timed out 1080 ms 1484 KB Time limit exceeded
23 Halted 0 ms 0 KB -