oj.uz

Submission #493129

# Submission time Handle Problem Language Result Execution time Memory
493129 2021-12-10T06:19:18 Z wiwiho Nautilus (BOI19_nautilus) C++14
100 / 100
 159 ms 716 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
const int SZ = 502;
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cerr.tie(0);
 
    int r, c, m;
    cin >> r >> c >> m;
 
    vector<bitset<SZ>> g(r + 2);
    for(int i = 1; i <= r; i++){
        string t;
        cin >> t;
        for(int j = 0; j < c; j++){
            if(t[j] == '.') g[i][c - j] = 1;
        }
        //cerr << t << "\n";
        //cerr << g[i] << "\n";
    }
 
    //for(int i = 0; i <= r + 1; i++) cerr << g[i] << "\n";
 
    string s;
    cin >> s;
    
    vector<vector<bitset<SZ>>> dp(2, vector<bitset<SZ>>(r + 2));
    int now = 0;
    dp[now] = g;
 
    for(char d : s){
        now = !now;
        for(int i = 1; i <= r; i++) dp[now][i].reset();
        
        if(d == 'S' || d == '?'){
            for(int i = 1; i <= r; i++) dp[now][i] |= dp[!now][i - 1];
        }
        if(d == 'N' || d == '?'){
            for(int i = 1; i <= r; i++) dp[now][i] |= dp[!now][i + 1];
        }
        if(d == 'E' || d == '?'){
            for(int i = 1; i <= r; i++) dp[now][i] |= dp[!now][i] >> 1;
        }
        if(d == 'W' || d == '?'){
            for(int i = 1; i <= r; i++) dp[now][i] |= dp[!now][i] << 1;
        }
        //cerr << "test " << d << "\n";
        //for(int i = 0; i <= r + 1; i++) cerr << dp2[i] << "\n";
 
        for(int i = 1; i <= r; i++) dp[now][i] &= g[i];
 
        //cerr << "test " << d << "\n";
        //for(int i = 0; i <= r + 1; i++) cerr << dp[i] << "\n";
    }
 
    int ans = 0;
    for(int i = 1; i <= r; i++){
        for(int j = 1; j <= c; j++){
            if(dp[now][i][j]) ans++;
        }
    }
    cout << ans << "\n";
 
    return 0;
}

Subtask #1
29.0 / 29.0

# 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

Subtask #2
37.0 / 37.0

# 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 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct

Subtask #3
34.0 / 34.0

# 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 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 84 ms 712 KB Output is correct
23 Correct 86 ms 588 KB Output is correct
24 Correct 84 ms 588 KB Output is correct
25 Correct 86 ms 588 KB Output is correct
26 Correct 83 ms 696 KB Output is correct
27 Correct 126 ms 692 KB Output is correct
28 Correct 129 ms 692 KB Output is correct
29 Correct 124 ms 696 KB Output is correct
30 Correct 123 ms 696 KB Output is correct
31 Correct 123 ms 716 KB Output is correct
32 Correct 151 ms 708 KB Output is correct
33 Correct 150 ms 700 KB Output is correct
34 Correct 157 ms 692 KB Output is correct
35 Correct 151 ms 588 KB Output is correct
36 Correct 159 ms 716 KB Output is correct