Submission #496520

# Submission time Handle Problem Language Result Execution time Memory
496520 2021-12-21T12:00:24 Z Mukhitali Nautilus (BOI19_nautilus) C++17
100 / 100
173 ms 764 KB
//bit chass 1
#include <bits/stdc++.h>

#define x first
#define y second
#define el "\n"
#define ll long long
#define pb push_back
#define pll pair <ll, ll>
#define pii pair <int, int>
#define all(x) x.begin(), x.end()
#define lcm(x,y) x * y / __gcd(x, y)
#define ibase ios_base::sync_with_stdio(0), cin.tie(0)

using namespace std;

const int N = 3e5 + 5, inf = 1e9 + 7, M = 2e6, MM = 2e6 + 5, K = 300;
const ll MI = 2e18;
const double P = 3.14;

string s[505];
string a;
int r, c, m;
int ans;

void solve() {
	cin >> r >> c >> m;
	bitset<500> b[r], bad[r], re, down[r], up[r], left[r], right[r];
	for (int i = 0; i < 500; i++)
		re[i] = 0;
	for (int i = 0; i < r; i++) {
		cin >> s[i];
		b[i] = bad[i] = re;
		for (int j = 0; j < c; j++) {
			b[i][j] = (s[i][j] == '.');
			bad[i][j] = (s[i][j] == '.');
		}
	}
	cin >> a;
	for (int k = 0; k < m; k++) {
//		for (int i = 0; i < c; i++)
//			cout << b[0][i];
//		cout << el;
		if (a[k] == 'W') {
			for (int i = 0; i < r; i++) {
				b[i] = (b[i] >> 1);
				b[i] = b[i] & bad[i];
			}
		}
		if (a[k] == 'E') {
			for (int i = 0; i < r; i++) {
				b[i] = (b[i] << 1);
				b[i] = b[i] & bad[i];
			}
		}
		if (a[k] == 'N') {
			for (int i = 0; i < r - 1; i++) {
				b[i] = b[i + 1] & bad[i];
			}
			b[r - 1] = re;
		}
		if (a[k] == 'S') {
			for (int i = r - 1; i > 0; i--) {
				b[i] = b[i - 1] & bad[i];
			}
			b[0] = re;
		}
		if (a[k] == '?') {
			up[0] = re;
			down[r - 1] = re;
			for (int i = 0; i < r; i++) {
				if (i != 0)
					up[i] = b[i - 1];
				if (i != r - 1)
					down[i] = b[i + 1];
				left[i] = (b[i] >> 1);
				right[i] = (b[i] << 1);
			}
			for (int i = 0; i < r; i++) {
				b[i] = (((up[i] | down[i]) | right[i]) | left[i]);
				b[i] = b[i] & bad[i];
			}
		}
	}
	for (int i = 0; i < r; i++) {
		for (int j = 0; j < c; j++)
			if (b[i][j]) 
				ans++;
	}
	cout << ans;
	
}

int main() {
	ibase;
	int T = 1;
//	cin >> T;
	for (int i = 1; i <= T; i++) {
//		cout << "Case " << i << ": ";
		solve();
		cout << el;
	}
}
# 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
# 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 1 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 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 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 276 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
# 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 1 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 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 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 276 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 106 ms 716 KB Output is correct
23 Correct 102 ms 716 KB Output is correct
24 Correct 99 ms 756 KB Output is correct
25 Correct 113 ms 760 KB Output is correct
26 Correct 106 ms 764 KB Output is correct
27 Correct 135 ms 756 KB Output is correct
28 Correct 135 ms 760 KB Output is correct
29 Correct 141 ms 760 KB Output is correct
30 Correct 144 ms 716 KB Output is correct
31 Correct 145 ms 764 KB Output is correct
32 Correct 163 ms 756 KB Output is correct
33 Correct 173 ms 760 KB Output is correct
34 Correct 168 ms 764 KB Output is correct
35 Correct 170 ms 760 KB Output is correct
36 Correct 163 ms 760 KB Output is correct