Submission #1001006

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1001006	2024-06-18 12:39:21	vjudge1	Tracks in the Snow (BOI13_tracks)	C++17	100 / 100	422 ms	118800 KiB

tracks

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include <bits/stdc++.h>
using i64 = long long;
const int dx[] = {-1, 0, 1, 0};
const int dy[] = {0, 1, 0, -1};
int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    int h, w;
    std::cin >> h >> w;
    
    std::vector<std::string> g(h);
    for (auto &s : g) {
        std::cin >> s;
    }
    std::vector dis(h, std::vector<int>(w, -1));
    dis[0][0] = 0;
    std::deque<std::tuple<int, int>> q;
    q.push_back({0, 0});
    int ans = 0;
    while (q.size()) {
        auto [x, y] = q.front();
        q.pop_front();
        ans = std::max(ans, dis[x][y]);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

• Subtask 1: 30 / 30
• Subtask 2: 70 / 70