Update: Rename folder name to XSMOJ

XSMOJ/小码君的上学之路1.cpp

@@ -0,0 +1,63 @@
+#include <algorithm>
+#include <iostream>
+#include <iomanip>
+#include <cstring>
+#include <cstdio>
+#include <stack>
+#include <ctime>
+#include <cmath>
+#include <queue>
+typedef long long l;
+typedef double d;
+typedef char c;
+using namespace std;
+struct node{
+	int x;
+	int y;
+};
+int dx[4]={1,-1,0,0};
+int dy[4]={0,0,1,-1};
+int sx,sy;
+int ex,ey;
+int n,m;
+bool vis[600][600];
+char mp[600][600];
+void bfs(){
+	queue<node> que;
+	que.push({sx,sy});
+	while(!que.empty()){
+		node first=que.front();
+		que.pop();
+		if(first.x==ex && first.y==ey){
+			cout <<"Yes";
+			return;
+		}
+		for(int i=0;i<4;i++){
+			int tox=first.x+dx[i];
+			int toy=first.y+dy[i];
+			if(tox>=1 && tox<=n && toy>=1 && toy<=m && mp[tox][toy]!='#' && vis[tox][toy]==0){
+				que.push({tox,toy});
+				vis[tox][toy]=1;
+			}
+		}
+	}
+	cout <<"No";
+}
+int main(){
+	cin >>n>>m;
+	for(int i=1;i<=n;i++){
+		for(int j=1;j<=m;j++){
+			cin >>mp[i][j];
+			if(mp[i][j]=='s'){
+				sx=i;
+				sy=j;
+			}
+			if(mp[i][j]=='g'){
+				ex=i;
+				ey=j;
+			}
+		}
+	}
+	bfs();
+	return 0;
+}