oj.uz

Submission #1106713

# Submission time Handle Problem Language Result Execution time Memory
1106713 2024-10-31T01:35:17 Z LinhLewLew Nautilus (BOI19_nautilus) C++17
100 / 100
 29 ms 832 KB 
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4.1,sse4.2,avx,avx2,popcnt")
#include <bits/stdc++.h>
#define ALL(X) begin(X), end(X)
using namespace std;
using i64 = long long;
 
template <class T>
using vec = vector<T>;
 
template <class T>
istream& operator>>(istream& is, vec<T>& V) {
    for (auto& x : V) is >> x;
    return is;
}
 
constexpr int kN = 500;
 
bitset<kN> dp[2][kN + 2], mask[kN + 1];
 
int main() {
    cin.tie(nullptr)->sync_with_stdio(false);
    int R, C, M; cin >> R >> C >> M;
    for (int i = 0; i < R; i++) {
        string S; cin >> S;
        for (int j = 0; j < C; j++)
            mask[i + 1][j] = dp[1][i + 1][j] = (S[j] == '.');
    }
    string op; cin >> op;
    for (int t = 0; t < M; t++) {
        const char c = op[t];
        for (int i = 0; i < R; i++) {
            if (c == '?') {
                dp[t & 1][i + 1] = mask[i + 1] & 
                                    (dp[!(t & 1)][i] | dp[!(t & 1)][i + 2] |
                                    (dp[!(t & 1)][i + 1] << 1) | (dp[!(t & 1)][i + 1] >> 1));
            }
            else if (c == 'N')
                dp[t & 1][i + 1] = mask[i + 1] & dp[!(t & 1)][i + 2];
            else if (c == 'S')
                dp[t & 1][i + 1] = mask[i + 1] & dp[!(t & 1)][i];
            else if (c == 'W')
                dp[t & 1][i + 1] = mask[i + 1] & (dp[!(t & 1)][i + 1] >> 1);
            else if (c == 'E')
                dp[t & 1][i + 1] = mask[i + 1] & (dp[!(t & 1)][i + 1] << 1);
        }
    }
    int ans{};
    for (int i = 0; i < R; i++)
        for (int j = 0; j < C; j++)
            ans += dp[!(M & 1)][i + 1][j];
    cout << ans << '\n';
}

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 592 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 504 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 504 KB Output is correct

Subtask #3
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 592 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 504 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 504 KB Output is correct
22 Correct 15 ms 592 KB Output is correct
23 Correct 15 ms 592 KB Output is correct
24 Correct 15 ms 592 KB Output is correct
25 Correct 14 ms 592 KB Output is correct
26 Correct 14 ms 760 KB Output is correct
27 Correct 20 ms 592 KB Output is correct
28 Correct 20 ms 592 KB Output is correct
29 Correct 20 ms 756 KB Output is correct
30 Correct 29 ms 592 KB Output is correct
31 Correct 20 ms 592 KB Output is correct
32 Correct 24 ms 592 KB Output is correct
33 Correct 25 ms 640 KB Output is correct
34 Correct 25 ms 752 KB Output is correct
35 Correct 25 ms 592 KB Output is correct
36 Correct 24 ms 832 KB Output is correct