O(n) space clean python code using queue

  • 0
    class Solution(object):
        def minimumTotal(self, triangle):
            queue, MAX = collections.deque(), float('inf')
            for row in triangle:
                pre = MAX
                for i in xrange(len(queue)):
                    queue.append(min(pre, queue[0]) + row[i])
                    pre = queue.popleft()
                queue.append([pre, 0][pre == MAX] + row[-1])
            return min(queue)

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