Submission #1105780

#	Time	Username	Problem	Language	Result	Execution time	Memory
1105780		vjudge1	Kitchen (BOI19_kitchen)	C++17	0 / 100	2 ms	1104 KiB

kitchen

#include <bits/stdc++.h>

int dx[] = {0, 0, -1, 1};
int dy[] = {-1, 1, 0, 0};

int main() {
    std::ios_base::sync_with_stdio(false); 
    std::cin.tie(nullptr);

    int r, c, m;
    std::string s;
    std::cin >> r >> c >> m;
    std::vector<std::vector<char>> a(r + 1, std::vector<char>(c + 1));
    for (int i = 1; i <= r; i++) {
        for (int j = 1; j <= c; j++) {
            std::cin >> a[i][j];
        }
    }
    std::cin >> s;
    s = "#" + s;
    std::vector<std::vector<int>> can(r + 1, std::vector<int>(c + 1));
    for (int i = 1; i <= r; i++) {
        for (int j = 1; j <= c; j++) {
            if (a[i][j] == '.') {
                can[i][j] = 1;
            }
        }
    }
    for (int it = 1; it <= m; it++) {
        std::vector<std::vector<int>> aux(r + 1, std::vector<int>(c + 1, 0));
        for (int i = 1; i <= r; i++) {
            for (int j = 1; j <= c; j++) {
                if (a[i][j] == '#') {
                    continue;
                }
                if (s[it] == '?') {
                    for (int d = 0; d < 4; ++d) {
                        int x = i + dx[d];
                        int y = j + dy[d];
                        if (1 <= x && x <= r && 1 <= y && y <= c && can[x][y] == 1) {
                            aux[i][j] = 1;
                        }
                    }
                    continue;
                }
                if (s[it] == 'W' && j + 1 <= c && can[i][j + 1] == 1) {
                    aux[i][j] = 1; 
                }
                if (s[it] == 'E' && j - 1 >= 1 && can[i][j - 1] == 1) {
                    aux[i][j] = 1;
                }
                if (s[it] == 'N' && i + 1 <= r && can[i + 1][j] == 1) {
                    aux[i][j] = 1;
                }
                if (s[it] == 'S' && i - 1 >= 1 && can[i - 1][j] == 1) {
                    aux[i][j] = 1;
                }
            }
        }
        swap(can, aux);
    }
    int res = 0;
    for (int i = 1; i <= r; i++) {
        for (int j = 1; j <= c; j++) {
            if (can[i][j] == 1) {
                res++;
            }
        }
    }
    std::cout << res << "\n";
    return 0;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 22
• Subtask 3: 0 / 20
• Subtask 4: 0 / 21
• Subtask 5: 0 / 28