oj.uz

Submission #1105365

# Submission time Handle Problem Language Result Execution time Memory
1105365 2024-10-26T08:39:31 Z manhlinh1501 Nautilus (BOI19_nautilus) C++17
100 / 100
 176 ms 852 KB 
#include<bits/stdc++.h>
using namespace std;
using i64 = long long;
const int MAXN = 505;

int N, M, K;
bitset<MAXN> a[MAXN];
bitset<MAXN> b[MAXN];
bitset<MAXN> c[MAXN];

void update(char x) {
    if(x == 'N') {
        for(int i = 1; i <= N; i++)
            b[i] = a[i] & b[i + 1];
    }
    if(x == 'S') {
        for(int i = N; i >= 1; i--)
            b[i] = a[i] & b[i - 1];
    }
    if(x == 'E') {
        for(int i = 1; i <= N; i++)
            b[i] = a[i] & (b[i] << 1);
    }
    if(x == 'W') {
        for(int i = N; i >= 1; i--)
            b[i] = a[i] & (b[i] >> 1);
    }
    if(x == '?') {
        for(int i = 1; i <= N; i++)
            c[i] = b[i - 1] | b[i + 1] | (b[i] >> 1) | (b[i] << 1);
        for(int i = 1; i <= N; i++)
            b[i] = c[i] & a[i];
    }
}

signed main() {
#define task ""
    if(fopen(task".inp", "r")) {
        freopen(task".inp", "r", stdin);
        freopen(task".out", "w", stdout);
    }
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin >> N >> M >> K;
    for(int i = 1; i <= N; i++) {
        for(int j = 1; j <= M; j++) {
            char c = 0;
            cin >> c;
            if(c == '.') {
                a[i].set(j);
                b[i].set(j);
            }
        }
    }
    for(int i = 1; i <= K; i++) {
        char x = 0;
        cin >> x;
        update(x);
    }
    int ans = 0;
    for(int i = 1; i <= N; i++) {
        for(int j = 1; j <= M; j++) {
            if(b[i][j])
                ans++;
        }
    }
    cout << ans;
    return (0 ^ 0);
}

Compilation message

nautilus.cpp: In function 'int main()':
nautilus.cpp:39:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |         freopen(task".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
nautilus.cpp:40:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |         freopen(task".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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 364 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 364 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 2 ms 336 KB Output is correct
9 Correct 2 ms 336 KB Output is correct
10 Correct 2 ms 336 KB Output is correct
11 Correct 2 ms 336 KB Output is correct
12 Correct 2 ms 336 KB Output is correct
13 Correct 1 ms 492 KB Output is correct
14 Correct 2 ms 472 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 2 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 2 ms 336 KB Output is correct
19 Correct 2 ms 336 KB Output is correct
20 Correct 2 ms 336 KB Output is correct
21 Correct 2 ms 336 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 364 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 2 ms 336 KB Output is correct
9 Correct 2 ms 336 KB Output is correct
10 Correct 2 ms 336 KB Output is correct
11 Correct 2 ms 336 KB Output is correct
12 Correct 2 ms 336 KB Output is correct
13 Correct 1 ms 492 KB Output is correct
14 Correct 2 ms 472 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 2 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 2 ms 336 KB Output is correct
19 Correct 2 ms 336 KB Output is correct
20 Correct 2 ms 336 KB Output is correct
21 Correct 2 ms 336 KB Output is correct
22 Correct 84 ms 592 KB Output is correct
23 Correct 86 ms 592 KB Output is correct
24 Correct 83 ms 592 KB Output is correct
25 Correct 82 ms 592 KB Output is correct
26 Correct 80 ms 592 KB Output is correct
27 Correct 132 ms 592 KB Output is correct
28 Correct 136 ms 592 KB Output is correct
29 Correct 133 ms 592 KB Output is correct
30 Correct 134 ms 592 KB Output is correct
31 Correct 133 ms 852 KB Output is correct
32 Correct 172 ms 592 KB Output is correct
33 Correct 169 ms 592 KB Output is correct
34 Correct 174 ms 592 KB Output is correct
35 Correct 176 ms 592 KB Output is correct
36 Correct 169 ms 592 KB Output is correct