Submission #1174629

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1174629	2025-03-27 06:10:27	viwlesxq	Tracks in the Snow (BOI13_tracks)	C++20	100 / 100	430 ms	112152 KiB

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#include <bits/stdc++.h>
using namespace std;
//#define int long long
#define all(x) x.begin(), x.end()
template<class A, class B>
bool chmin(A &a, const B &b) {
    return a > b ? (a = b) == b : false;
} template<class A, class B>
bool chmax(A &a, const B &b) {
    return a < b ? (a = b) == b : false;
}
const int dx[] = {-1, 1, 0, 0};
const int dy[] = {0, 0, -1, 1};
signed main() {
    cin.tie(nullptr)->sync_with_stdio(false);
    int n, m; cin >> n >> m;
    vector<string> s(n);
    for (int i = 0; i < n; ++i) {
        cin >> s[i];
    }
    auto in = [&](int i, int j) {
        return i >= 0 && i < n && j >= 0 && j < m;
    };
 
 
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• Subtask 1: 30 / 30
• Subtask 2: 70 / 70