oj.uz

Submission #328831

# Submission time Handle Problem Language Result Execution time Memory
328831 2020-11-18T07:19:37 Z egas Nautilus (BOI19_nautilus) C++14
66 / 100
 1000 ms 1132 KB 
#include <bits/stdc++.h>

using namespace std;

int32_t main() {

    ios_base::sync_with_stdio(false);

    cin.tie(0);

    int r;

    cin >> r;

    int c;

    cin >> c;

    int m;

    cin >> m;

    vector<string> grid;

    for(int i = 0 ; i < r ; i++) {

        string temp;

        cin >> temp;

        grid.push_back(temp);

    }

    string path;

    cin >> path;

    bool canVisit[501][501][2];

    memset(canVisit,0,sizeof canVisit);

    int res=0;

    for(int i = 0 ; i < r ; i++) {

        for(int j = 0 ; j < c ; j++) {

            if(grid[i][j]=='.') {

                canVisit[i][j][0]=true;

            }

        }

    }

    for(int k=0; k<path.length(); k++) {

        if(path[k]=='S') {

            for(int i = 0 ; i < r ; i++) {

                for(int j = 0 ; j < c ; j++) {

                    if(i-1>=0 and canVisit[i-1][j][0] and grid[i][j]=='.') {

                        canVisit[i][j][1]=1;

                    }

                }

            }

        } else if(path[k]=='N') {

            for(int i = 0 ; i < r ; i++) {

                for(int j = 0 ; j < c ; j++) {

                    if(i+1<r and canVisit[i+1][j][0] and grid[i][j]=='.') {

                        canVisit[i][j][1]=1;

                    }

                }

            }

        } else if(path[k]=='E') {

            for(int i = 0 ; i < r ; i++) {

                for(int j = 0 ; j < c ; j++) {

                    if(j-1>=0 and canVisit[i][j-1][0] and grid[i][j]=='.') {

                        canVisit[i][j][1]=1;

                    }

                }

            }

        } else if(path[k]=='W') {

            for(int i = 0 ; i < r ; i++) {

                for(int j = 0 ; j < c ; j++) {

                    if(j+1<c and canVisit[i][j+1][0] and grid[i][j]=='.') {

                        canVisit[i][j][1]=1;

                    }

                }

            }

        } else {

            for(int i = 0 ; i < r ; i++) {

                for(int j = 0 ; j < c ; j++) {

                    if(i-1>=0 and canVisit[i-1][j][0] and grid[i][j]=='.') {

                        canVisit[i][j][1]=1;

                    }

                    if(i+1<r and canVisit[i+1][j][0] and grid[i][j]=='.') {

                        canVisit[i][j][1]=1;

                    }

                    if(j+1<c and canVisit[i][j+1][0] and grid[i][j]=='.') {

                        canVisit[i][j][1]=1;

                    }

                    if(j-1>=0 and canVisit[i][j-1][0] and grid[i][j]=='.') {

                        canVisit[i][j][1]=1;

                    }

                }

            }

        }

        for(int i = 0 ; i < r ; i++) {

            for(int j = 0 ; j < c ; j++) {

                canVisit[i][j][0]=canVisit[i][j][1];

                canVisit[i][j][1]=0;

            }

        }

    }

    for(int i = 0 ; i < r ; i++) {

        for(int j = 0 ; j < c ; j++) {

            res+=canVisit[i][j][0];

        }

    }

    cout << res << '\n';

    return 0;

}

Compilation message

nautilus.cpp: In function 'int32_t main()':
nautilus.cpp:59:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |     for(int k=0; k<path.length(); k++) {
      |                  ~^~~~~~~~~~~~~~

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 876 KB Output is correct
2 Correct 4 ms 1024 KB Output is correct
3 Correct 4 ms 876 KB Output is correct
4 Correct 3 ms 876 KB Output is correct
5 Correct 3 ms 876 KB Output is correct
6 Correct 3 ms 876 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 876 KB Output is correct
2 Correct 4 ms 1024 KB Output is correct
3 Correct 4 ms 876 KB Output is correct
4 Correct 3 ms 876 KB Output is correct
5 Correct 3 ms 876 KB Output is correct
6 Correct 3 ms 876 KB Output is correct
7 Correct 4 ms 876 KB Output is correct
8 Correct 8 ms 876 KB Output is correct
9 Correct 5 ms 876 KB Output is correct
10 Correct 5 ms 876 KB Output is correct
11 Correct 4 ms 876 KB Output is correct
12 Correct 6 ms 876 KB Output is correct
13 Correct 16 ms 876 KB Output is correct
14 Correct 18 ms 876 KB Output is correct
15 Correct 7 ms 876 KB Output is correct
16 Correct 6 ms 876 KB Output is correct
17 Correct 7 ms 876 KB Output is correct
18 Correct 14 ms 876 KB Output is correct
19 Correct 19 ms 876 KB Output is correct
20 Correct 12 ms 876 KB Output is correct
21 Correct 9 ms 876 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 876 KB Output is correct
2 Correct 4 ms 1024 KB Output is correct
3 Correct 4 ms 876 KB Output is correct
4 Correct 3 ms 876 KB Output is correct
5 Correct 3 ms 876 KB Output is correct
6 Correct 3 ms 876 KB Output is correct
7 Correct 4 ms 876 KB Output is correct
8 Correct 8 ms 876 KB Output is correct
9 Correct 5 ms 876 KB Output is correct
10 Correct 5 ms 876 KB Output is correct
11 Correct 4 ms 876 KB Output is correct
12 Correct 6 ms 876 KB Output is correct
13 Correct 16 ms 876 KB Output is correct
14 Correct 18 ms 876 KB Output is correct
15 Correct 7 ms 876 KB Output is correct
16 Correct 6 ms 876 KB Output is correct
17 Correct 7 ms 876 KB Output is correct
18 Correct 14 ms 876 KB Output is correct
19 Correct 19 ms 876 KB Output is correct
20 Correct 12 ms 876 KB Output is correct
21 Correct 9 ms 876 KB Output is correct
22 Execution timed out 1077 ms 1132 KB Time limit exceeded
23 Halted 0 ms 0 KB -