first commit

from old repository to a new repository

boj/21736.py

@@ -0,0 +1,42 @@
+from sys import stdin
+from collections import deque
+n,m=map(int,stdin.readline().rstrip().split())
+arr=[['']*m for _ in range(n)]
+sx=sy=0
+
+for i in range(n):
+    li=stdin.readline().rstrip()
+    for j in range(m):
+        arr[i][j]=li[j]
+        if li[j]=='I':
+            sx=i
+            sy=j
+
+dx=[1,0,-1,0]
+dy=[0,1,0,-1]
+
+cnt=0
+next=deque()
+next.append((sx,sy))
+arr[sx][sy]='C'
+
+while next:
+    now=next.pop()
+
+    for i in range(4):
+        ddx=now[0]+dx[i]
+        ddy=now[1]+dy[i]
+
+        if ddx<0 or ddy<0 or ddx>=n or ddy>=m:
+            continue
+        c=arr[ddx][ddy]
+        if c=='O' or c=='P':
+            if c=='P':
+                cnt+=1
+            next.append((ddx,ddy))
+            arr[ddx][ddy]='C'
+
+if cnt==0:
+    print('TT')
+else:
+    print(cnt)