oj.uz

Submission #493840

# Submission time Handle Problem Language Result Execution time Memory
493840 2021-12-13T07:09:40 Z yungyao Nautilus (BOI19_nautilus) C++17
100 / 100
 242 ms 712 KB 
using namespace std;
#include <iostream>
#include <algorithm>
#include <vector>
#include <utility>
#include <map>
#include <set>
#include <stack>
#include <queue>

typedef long long LL;
typedef pair<int,int> pii;
#define pb push_back
#define mkp make_pair
#define F first
#define S second
#define iter(x) x.begin(),x.end()
#define REP(n) for (int __=n;__--;)
#define REP0(i,n) for (int i=0;i<n;++i)
#define REP1(i,n) for (int i=1;i<=n;++i)

#include <bitset>

const int maxn = 505, mod = 0;
const LL inf = 0;

vector <bitset <maxn>> dp, can;

void solve(){
	int n, m, k;
	string s;

	cin >> n >> m >> k;
	can.resize(n);
	REP0(i,n) REP0(j,m){
		char c;

		cin >> c;
		can[i][j] = (c == '.');
	}
	//REP0(i,n) {REP0(j,m) cout << can[i][j]; cout << '\n';} cout << '\n';
	dp = can;
	cin >> s;
	for (auto c:s){
		vector <bitset<maxn>> tr(n);

		if (c == 'E' or c == '?'){
			REP0(i,n) tr[i] = tr[i] | (dp[i] << 1);
		}
		if (c == 'W' or c == '?'){
			REP0(i,n) tr[i] = tr[i] | (dp[i] >> 1);
		}
		if (c == 'N' or c == '?'){
			REP0(i,n-1) tr[i] = tr[i] | dp[i+1];
		}
		if (c == 'S' or c == '?'){
			REP1(i,n-1) tr[i] = tr[i] | dp[i-1];
		}

		REP0(i, n){
			tr[i] = tr[i] & can[i];
		}
		dp.swap(tr);
		//cout << c << '\n'; REP0(i,n) {REP0(j,m) cout << dp[i][j]; cout << '\n';} cout << '\n';
	}

	int cnt = 0;
	REP0(i,n) cnt += dp[i].count();
	cout << cnt;
}

int main(){
	ios_base::sync_with_stdio(false); cin.tie(0);
	solve();

	return 0;
}

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 2 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 2 ms 332 KB Output is correct
13 Correct 1 ms 320 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 2 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct

Subtask #3
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 2 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 2 ms 332 KB Output is correct
13 Correct 1 ms 320 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 2 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 135 ms 644 KB Output is correct
23 Correct 134 ms 588 KB Output is correct
24 Correct 135 ms 652 KB Output is correct
25 Correct 131 ms 588 KB Output is correct
26 Correct 128 ms 652 KB Output is correct
27 Correct 187 ms 660 KB Output is correct
28 Correct 188 ms 588 KB Output is correct
29 Correct 189 ms 648 KB Output is correct
30 Correct 189 ms 588 KB Output is correct
31 Correct 189 ms 648 KB Output is correct
32 Correct 231 ms 644 KB Output is correct
33 Correct 236 ms 588 KB Output is correct
34 Correct 242 ms 708 KB Output is correct
35 Correct 240 ms 652 KB Output is correct
36 Correct 239 ms 712 KB Output is correct