제출 #1128345

#제출 시각아이디문제언어결과실행 시간메모리
1128345mnbvcxz123Tracks in the Snow (BOI13_tracks)C++20
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> using namespace std; typedef long long lint; typedef long double llf; typedef pair<int, int> pi; int dx[4]={1,0,-1,0},dy[4]={0,1,0,-1}; queue<pi>q1,q2; int n, m, ret; char str[4005][4005]; bool vis[4005][4005]; void bfs(queue<pi>&q1,queue<pi>&q2,int d){ if(q1.empty()) return; ret=max(ret,d); while(!q1.empty()){ pi x = q1.front(); q1.pop(); for(int i=0; i<4; i++){ if(x.first + dx[i] < 0 || x.second + dy[i] < 0 || x.first + dx[i] >= n || x.second + dy[i] >= m) continue; if(vis[x.first+dx[i]][x.second+dy[i]] || str[x.first+dx[i]][x.second+dy[i]] == '.') continue; vis[x.first+dx[i]][x.second+dy[i]]=1; if(str[x.first + dx[i]][x.second + dy[i]] == str[x.first][x.second]) q1.push(pi(x.first + dx[i], x.second + dy[i])); else q2.push(pi(x.first + dx[i], x.second + dy[i])); } } bfs(q2,q1,d+1); } int main(){ cin>>n>>m; for(int i=0;i<n;i++)cin>>str[i]; q1.push(pi(0,0)); vis[0][0]=1; bfs(q1,q2,1); cout<<ret;

컴파일 시 표준 에러 (stderr) 메시지

tracks.cpp: In function 'int main()':
tracks.cpp:41:19: error: expected '}' at end of input
   41 |         cout<<ret;
      |                   ^
tracks.cpp:35:11: note: to match this '{'
   35 | int main(){
      |           ^