补全9月11日至13日课评：为13名学生创建请假文档，为5个班级创建总结文档

C++代码/学习/01迷宫.cpp

@@ -0,0 +1,70 @@
+#include <bits/stdc++.h>
+#define endl '\n'
+using namespace std;
+
+int n, m, x, y;
+int cntt[1010][1010];
+char arr[1010][1010];
+
+int tot = 0;
+int sz[1000010];
+
+int fx[] = {0, 0, 1, 0, -1};
+int fy[] = {0, 1, 0, -1, 0};
+
+int q[1000010][3];
+
+void bfs(int x, int y){
+	int cnt = 1;
+	tot++;
+	
+	q[1][1] = x;
+	q[1][2] = y;
+	cntt[x][y] = tot;
+	int head = 1, tail = 1;
+	
+	while(head <= tail){
+		int cx = q[head][1];
+		int cy = q[head][2];
+		
+		int tx, ty;
+		for(int i = 1; i <= 4; i++){
+			tx = cx + fx[i];
+			ty = cy + fy[i];
+			
+			if(tx >= 1 && tx <= n && ty >= 1 && ty <= n && cntt[tx][ty] == 0
+				&& (arr[cx][cy] != arr[tx][ty])){
+				tail++;
+				q[tail][1] = tx;
+				q[tail][2] = ty;
+				cntt[tx][ty] = tot;
+//				cout << "ÎÒ¿ÉÒÔÀ´"; 
+				
+				cnt++;
+			}
+		}
+		head++;
+	}
+	sz[tot] = cnt;
+}
+
+int main(){
+	cin >> n >> m;
+	for(int i = 1; i <= n; i++){
+		for(int j = 1; j <= n; j++){
+			cin >> arr[i][j];
+		}
+	}
+	
+	for(int i = 1; i <= n; i++){
+		for(int j = 1; j <= n; j++){
+			if(cntt[i][j] == 0) bfs(i, j);
+		}
+	}
+	for(int i = 1; i <= m; i++){
+		cin >> x >> y;
+		cout << sz[cntt[x][y]] << endl;
+	}
+	return 0;
+}
+