oj.uz

Submission #925956

# Submission time Handle Problem Language Result Execution time Memory
925956 2024-02-12T11:56:41 Z vjudge1 Nautilus (BOI19_nautilus) C++17
100 / 100
 147 ms 1444 KB 
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx")
#pragma GCC optimize("Ofast,unroll-loops,fast-math,O3")

#include<bits/stdc++.h>	

using namespace std;

#define all(a) a.begin(), a.end()                                                   
#define rall(a) a.rbegin(), a.rend()                 
#define sz(a) (int)a.size()
#define s second
#define f first
 
using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
     
vector<pii> rid = {{0, 1}, {0, -1}, {1, 0}, {-1, 0}};
vector<pii> dir = {{-1, -1}, {-1, 1}, {1, -1}, {1, 1}};
 
const int N = 3e5 + 1, mod = 998244353;

const ll inf = 1e9;
 
double eps = 1e-15;
                                                
bool flg = 0;

void slv() {
	int r, c, m;
	cin >> r >> c >> m;
	char a[r][c];
	bitset<N> s, h;
	for (int i = 0; i < r; i++) {
		for (int j = 0; j < c; j++) {
			cin >> a[i][j];
			if (a[i][j] == '.') {
				s[j + i * c] = 1;
				h[j + i * c] = 1;
			}
		}
	}
	string hs;
	cin >> hs;
	for (int i = 0; i < m; i++) {
		if (hs[i] == 'W') {
			for (int i = 0; i < r; i++) 
				s[i * c] = 0;
			s = h & (s >> 1);
		}else if (hs[i] == 'E') {
			for (int i = 1; i <= r; i++) 
				s[i * c - 1] = 0;
			s = h & (s << 1);
		}else if (hs[i] == 'N') {
			for (int i = 0; i < c; i++) 
				s[i] = 0;
			s = h & (s >> c);
		}else if (hs[i] == 'S') {
			for (int i = 0; i < c; i++) 
				s[(r - 1) * c + i] = 0;
			s = h & (s << c);
		}else {
			bitset<N> w = s, e = s, n = s, S = s;
			for (int i = 0; i < r; i++) 
				w[i * c] = 0;
			for (int i = 1; i <= r; i++) 
				e[i * c - 1] = 0;
			for (int i = 0; i < c; i++) 
				n[i] = 0;
			for (int i = 0; i < c; i++) 
				S[(r - 1) * c + i] = 0;
			s = h & ((w >> 1) | (e << 1) | (n >> c) | (S << c));
		}
	}
	int ans = 0;
	for (int i = 0; i < r * c; i++) {
		if (s[i]) {
			ans++;
		}
	}
	cout << ans;
}                                                                           
 
main() {
	//freopen("rsq.in", "r", stdin);                                                                                     
	//freopen("rsq.out", "w", stdout);                                                                                     
	ios_base::sync_with_stdio(0);	                                                                                       
	cin.tie(0);
	int tp = 1;
	if (flg) cin >> tp;
	while (tp--) {  	
		slv();
	}
}
//wenomechainsama

Compilation message

nautilus.cpp:86:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   86 | main() {
      | ^~~~

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 860 KB Output is correct
2 Correct 1 ms 860 KB Output is correct
3 Correct 1 ms 860 KB Output is correct
4 Correct 1 ms 860 KB Output is correct
5 Correct 1 ms 860 KB Output is correct
6 Correct 1 ms 860 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 860 KB Output is correct
2 Correct 1 ms 860 KB Output is correct
3 Correct 1 ms 860 KB Output is correct
4 Correct 1 ms 860 KB Output is correct
5 Correct 1 ms 860 KB Output is correct
6 Correct 1 ms 860 KB Output is correct
7 Correct 2 ms 860 KB Output is correct
8 Correct 2 ms 860 KB Output is correct
9 Correct 2 ms 860 KB Output is correct
10 Correct 2 ms 860 KB Output is correct
11 Correct 2 ms 860 KB Output is correct
12 Correct 3 ms 860 KB Output is correct
13 Correct 3 ms 976 KB Output is correct
14 Correct 3 ms 860 KB Output is correct
15 Correct 3 ms 860 KB Output is correct
16 Correct 3 ms 840 KB Output is correct
17 Correct 3 ms 860 KB Output is correct
18 Correct 4 ms 860 KB Output is correct
19 Correct 3 ms 976 KB Output is correct
20 Correct 3 ms 860 KB Output is correct
21 Correct 3 ms 856 KB Output is correct

Subtask #3
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 860 KB Output is correct
2 Correct 1 ms 860 KB Output is correct
3 Correct 1 ms 860 KB Output is correct
4 Correct 1 ms 860 KB Output is correct
5 Correct 1 ms 860 KB Output is correct
6 Correct 1 ms 860 KB Output is correct
7 Correct 2 ms 860 KB Output is correct
8 Correct 2 ms 860 KB Output is correct
9 Correct 2 ms 860 KB Output is correct
10 Correct 2 ms 860 KB Output is correct
11 Correct 2 ms 860 KB Output is correct
12 Correct 3 ms 860 KB Output is correct
13 Correct 3 ms 976 KB Output is correct
14 Correct 3 ms 860 KB Output is correct
15 Correct 3 ms 860 KB Output is correct
16 Correct 3 ms 840 KB Output is correct
17 Correct 3 ms 860 KB Output is correct
18 Correct 4 ms 860 KB Output is correct
19 Correct 3 ms 976 KB Output is correct
20 Correct 3 ms 860 KB Output is correct
21 Correct 3 ms 856 KB Output is correct
22 Correct 68 ms 1360 KB Output is correct
23 Correct 77 ms 1116 KB Output is correct
24 Correct 66 ms 1200 KB Output is correct
25 Correct 65 ms 1112 KB Output is correct
26 Correct 69 ms 1204 KB Output is correct
27 Correct 108 ms 1444 KB Output is correct
28 Correct 105 ms 1204 KB Output is correct
29 Correct 111 ms 1116 KB Output is correct
30 Correct 106 ms 1112 KB Output is correct
31 Correct 103 ms 1116 KB Output is correct
32 Correct 147 ms 1204 KB Output is correct
33 Correct 135 ms 1116 KB Output is correct
34 Correct 137 ms 1116 KB Output is correct
35 Correct 137 ms 1196 KB Output is correct
36 Correct 135 ms 1116 KB Output is correct