Submission #448685

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
448685	2021-07-31 16:45:27	Christopher_	Tracks in the Snow (BOI13_tracks)	C++17	100 / 100	643 ms	131124 KiB

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#include <bits/stdc++.h>
using namespace std;
int main() {
        ios::sync_with_stdio(false);
        cin.tie(0);
        const int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1};
        int n, m;
        cin >> n >> m;
        vector<string> mat(n);
        vector<vector<int>> dist(n, vector<int>(m));
        for (int i = 0; i < n; ++i) {
                cin >> mat[i];
        }
        deque<pair<int,int>> q;
        q.push_front({0, 0});
        dist[0][0] = 1;
        auto Check = [&](int x, int y) {
                return x >= 0 && x < n && y >= 0 && y < m && mat[x][y] != '.' && dist[x][y] == 0;
        };
        int ans = 0;
        while (!q.empty()) {
                int x = q.front().first, y = q.front().second; q.pop_front();
                ans = max(ans, dist[x][y]);
 
 
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• Subtask 1: 30 / 30
• Subtask 2: 70 / 70