제출 #971869

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
971869	2024-04-29 12:16:16	pete555	Tracks in the Snow (BOI13_tracks)	C++17	100 / 100	866 ms	270540 KiB

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#include<bits/stdc++.h>
using namespace std;
#define pi pair<int,int>
#define ll long long
#define pb push_back
#define pf push_front
const int MOD = 1e9+7;
const int dx[] = {1, 0, -1, 0};
const int dy[] = {0, 1, 0, -1};
int main()
{
  cin.tie(0)->sync_with_stdio(false);
  int n, m;
  cin >> n >> m;
  string s[n];
  for(int i=0; i<n; i++)
    cin >> s[i];
  deque<pi> q;
  vector<vector<int>> d(n, vector<int>(m));
  vector<vector<bool>> vis(n, vector<bool>(m));
  d[0][0] = 1;
  q.pb({0, 0});
  int ans = 0;
  while(q.size()){
    pi u = q.front();
    q.pop_front();
    if(vis[u.first][u.second]) continue;
 
 
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• Subtask 1: 30 / 30
• Subtask 2: 70 / 70