# Weird Python bug, "Run Code" doesn't match "Submit Solution"

• ``````def pacificAtlantic(self, matrix):
def reachable(ocean, r,c):
if (r,c) not in ocean:
ocean[r,c] = any(
reachable(ocean, newr, newc)
for newr, newc in [[r-1,c], [r+1,c], [r,c-1], [r,c+1]]
if 0 <= newr < m
and 0 <= newc < n
and (newr, newc) not in visited
and matrix[r][c] >= matrix[newr][newc])
visited.remove((r,c))
return ocean[r,c]

if not matrix or not matrix[0]:
return []
m,n = len(matrix), len(matrix[0])
pacific = {}
atlantic = {}
for r in xrange(m):
pacific[r,0] = True
atlantic[r,n-1] = True
for c in xrange(n):
pacific[0,c] = True
atlantic[m-1,c] = True
visited = set()
print reachable(pacific,3,27), reachable(atlantic,3,27)
return [
[r,c] for r in xrange(m) for c in xrange(n)
if reachable(pacific,r,c) and reachable(atlantic,r,c)]
``````

Here is my code. Please excuse the verbosity. OJ says it fails for a case (a long one which I won't copy and paste here to avoid clutter). For some reason, when I click "Submit Solution" the output is missing (3,27) but gets all the other pairs correct. What's weird is that when I use the "Run Code" option, (3,27) shows up correctly in the output, This is such a weird bug for me as there doesn't seem to be anything special about (3,27) as far as I can tell. Can someone help me?

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