Submission #812006

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
812006	2023-08-07 06:46:16	makanhulia	Tracks in the Snow (BOI13_tracks)	C++17	100 / 100	835 ms	51864 KiB

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#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ld long double
#define ull unsigned long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define fi first
#define se second
const int N = 4e3 + 5;
const int dx[] = {1, 0, -1, 0};
const int dy[] = {0, 1, 0, -1};
queue<pair<int, int>> q1, q2;
char a[N][N];
bool vis[N][N];
int main() { 
    ios_base::sync_with_stdio(false); cin.tie(NULL);
    int h, w, cnt = 0, ans = 0;
    cin >> h >> w;
    for (int i = 1; i <= h; i++) {
        for (int j = 1; j <= w; j++) {
            cin >> a[i][j];
            if (a[i][j] != '.') cnt++;
        }
    }
    q1.push({1, 1});
    vis[1][1] = 1;
 
 
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• Subtask 1: 30 / 30
• Subtask 2: 70 / 70