first commit

from old repository to a new repository

boj/14940.py

@@ -0,0 +1,41 @@
+from sys import stdin
+n,m=map(int,stdin.readline().rstrip().split())
+inmap=[[0]*m for _ in range(n)]
+visit=[[-1]*m for _ in range(n)]
+sx=sy=0
+
+for i in range(n):
+    s=list(map(int,stdin.readline().rstrip().split()))
+    for j in range(m):
+        if s[j]==2:
+            sx=i
+            sy=j
+        elif s[j]==0:
+            visit[i][j]=0
+        inmap[i][j]=s[j]
+
+dx=[1,0,-1,0]
+dy=[0,1,0,-1]
+next=[]
+next.append((sx,sy))
+visit[sx][sy]=0
+
+while len(next)>0:
+    now=next.pop(0)
+    i=now[0]
+    j=now[1]
+
+    for a in range(4):
+        ddx=i+dx[a]
+        ddy=j+dy[a]
+
+        if ddx==-1 or ddx==n or ddy==-1 or ddy==m:
+            continue
+        if inmap[ddx][ddy]==1 and visit[ddx][ddy]<=0:
+            next.append((ddx,ddy))
+            visit[ddx][ddy]=visit[i][j]+1
+
+for i in range(n):
+    for j in range(m):
+        print(visit[i][j],end=" ")
+    print()