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Submission #1003481

# Submission time Handle Problem Language Result Execution time Memory
1003481 2024-06-20T11:42:00 Z anango Nautilus (BOI19_nautilus) C++17
100 / 100
 137 ms 768 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;
const int maxn = 500;


signed main() {
    #ifndef ONLINE_JUDGE
        // for getting input from input.txt
        //freopen("input.txt", "r", stdin);
        // for writing output to output.txt
        //freopen("output.txt", "w", stdout);
    #endif
    /*#ifdef ONLINE_JUDGE
    	ios_base::sync_with_stdio(false);
    	cin.tie(NULL);
    #endif*/ //fast IO

    int n,m,k;
    cin >> n >> m >> k;
    bitset<maxn> B;
    bitset<maxn> all0;
    vector<bitset<maxn>> grid(n,B);
    vector<bitset<maxn>> allowed(n,B);
    for (int i=0; i<n; i++) {
        string s;
        cin >> s;
        bitset<maxn> B1;
        for (int j=0; j<m; j++) {
            if (s[j]=='#') {
                B1[j] = 0;
            }
            else {
                B1[j] = 1;
            }
        }
        grid[i] = allowed[i] = B1;
    }
    for (int let=0; let<k; let++) {
        char c;
        cin >> c;
        //cout << let << " " << c << endl;
        if (c=='N') {
            for (int i=1; i<n; i++) {
                allowed[i-1] = allowed[i];
            }
            allowed[n-1] = all0;
        }
        else if (c=='S') {
            
            for (int i=n-2; i>=0; i--) {
                //cout << "downing " << i << endl;
                allowed[i+1] = allowed[i];
            }
            allowed[0] = all0;
        }
        else if (c=='W') {
            for (int i=0; i<n; i++) {
                allowed[i] >>= 1;
            }
        }
        else if (c=='E') {
            for (int i=0; i<n; i++) {
                allowed[i] <<= 1;
            }
        }
        else if (c=='?') {
            //cout << "d" << let << endl;
            vector<bitset<maxn>> allowed2(n,all0);
            //cout << "e" << let << endl;
            for (int i=0; i<n; i++) {
                //cout << "doing " << i << endl;
                allowed2[i] |= allowed[i]>>1;
                allowed2[i] |= allowed[i]<<1;
            }
            for (int i=n-2; i>=0; i--) {
                //cout << i << endl;
                allowed2[i+1] |= allowed[i];
            }
            for (int i=1; i<n; i++) {
                //cout << i << endl;
                allowed2[i-1] |= allowed[i];
            }
            allowed=allowed2;

        }
        else {
            assert(false);
        }

        for (int i=0; i<n; i++) {
            allowed[i] &= grid[i];
        }
        
    }

    int answer = 0;
    for (int i=0; i<n; i++) {
        answer+=allowed[i].count();
    }
    cout << answer << endl;

    
}

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 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 436 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 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 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 436 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 52 ms 612 KB Output is correct
23 Correct 52 ms 756 KB Output is correct
24 Correct 50 ms 752 KB Output is correct
25 Correct 49 ms 604 KB Output is correct
26 Correct 49 ms 604 KB Output is correct
27 Correct 106 ms 752 KB Output is correct
28 Correct 102 ms 768 KB Output is correct
29 Correct 95 ms 600 KB Output is correct
30 Correct 105 ms 604 KB Output is correct
31 Correct 100 ms 604 KB Output is correct
32 Correct 126 ms 600 KB Output is correct
33 Correct 121 ms 604 KB Output is correct
34 Correct 117 ms 600 KB Output is correct
35 Correct 133 ms 604 KB Output is correct
36 Correct 137 ms 600 KB Output is correct