oj.uz

Submission #925957

# Submission time Handle Problem Language Result Execution time Memory
925957 2024-02-12T11:57:42 Z vjudge1 Nautilus (BOI19_nautilus) C++17
100 / 100
 72 ms 1112 KB 
#pragma comment(linker, "/stack:200000000")
#pragma GCC optimize("O3")
#pragma GCC target ("avx2")
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx")
#pragma GCC optimize("unroll-loops")

#include<iostream>
#include<cassert>
#include<cmath>
#include<cstring>
#include<algorithm>
#include<vector>
#include<stack>
#include<set>
#include<queue>
#include<map>
#include<iomanip>
#include<bitset>

using namespace std;

const int N = (int)4e5 + 7;
const int inf = (int)1e9 + 7;
const int MOD = (int)998244353;
const long long INF = (long long)1e18 + 7; 

int mult(int x, int y) {
	return 1ll*x*y%MOD;
}

int sum(int x, int y) {
	x += y;
	if(x >= MOD) {
		x -= MOD;
	}
	return x;
}

int sub(int x, int y) {
	x -= y;
	if(x < 0) {
		x += MOD;
	}
	return x;
}

int n, m, k;

vector<pair<int, int> > dir[300];

void init() {
	dir['W'] = {{0, -1}};
	dir['E'] = {{0, +1}};
	dir['N'] = {{-1, 0}};
	dir['S'] = {{+1, 0}};
	dir['?'] = {{0, -1}, {0, +1}, {-1, 0}, {+1, 0}};
}

int main() {	
	ios_base::sync_with_stdio(NULL);
	cin.tie(0);
	init();
	cin >> n >> m >> k;
	char a[n+1][m+1];
	bool is[n+1][m+1];
	bitset<505> used[2][501];
	bitset<505> block[501];
	memset(is, 0, sizeof(is));
	for(int i = 0; i < n; ++i) {
		used[1][i].reset();
		for(int j = 0; j < m; ++j) {
			cin >> a[i][j];
			if(a[i][j] == '.') {
				used[0][i][j]=1;
			} else {
				block[i][j]=1;
			}
		}
	}
	string s;
	cin >> s;
	s = '#'+s;
	for(int id = 1; id <= k; ++id) {
		if(s[id] == 'W' || s[id] == '?') {
			for(int i = 0; i < n; ++i) {
				used[1][i] |= (used[0][i]>>1);
			}			
		}
		if(s[id] == 'E' || s[id] == '?') {
			for(int i = 0; i < n; ++i) {
				used[1][i] |= (used[0][i]<<1);
			}
		}
		if(s[id] == 'N' || s[id] == '?') {
			for(int i = 0; i < n-1; ++i) {
				used[1][i] |= used[0][i+1];		
			}
		}
		if(s[id] == 'S' || s[id] == '?') {
			for(int i = 1; i < n; ++i) {
				used[1][i] |= used[0][i-1];
			}
		}
		for(int i = 0; i < n; ++i) {
			used[1][i] |= block[i];
			used[1][i] ^= block[i];
	    	used[0][i] = used[1][i];    
	    	used[0][i][m] = 0;
	    	used[1][i].reset();
		}
	}
	int ans = 0;
	for(int i = 0; i < n; ++i) {
		for(int j = 0; j < m; ++j) {
			if(used[0][i][j]) {
				assert(a[i][j] == '.');
			}
			ans += used[0][i][j];
		}
	}
	cout << ans << "\n";
	return 0;
}

Compilation message

nautilus.cpp:1: warning: ignoring '#pragma comment ' [-Wunknown-pragmas]
    1 | #pragma comment(linker, "/stack:200000000")
      |

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct

Subtask #3
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 41 ms 856 KB Output is correct
23 Correct 43 ms 860 KB Output is correct
24 Correct 41 ms 860 KB Output is correct
25 Correct 40 ms 856 KB Output is correct
26 Correct 39 ms 860 KB Output is correct
27 Correct 56 ms 860 KB Output is correct
28 Correct 58 ms 1036 KB Output is correct
29 Correct 58 ms 1040 KB Output is correct
30 Correct 58 ms 860 KB Output is correct
31 Correct 56 ms 860 KB Output is correct
32 Correct 69 ms 1060 KB Output is correct
33 Correct 70 ms 1036 KB Output is correct
34 Correct 71 ms 1112 KB Output is correct
35 Correct 72 ms 1032 KB Output is correct
36 Correct 69 ms 860 KB Output is correct