Valid Sudoku @ LeetCode (Python)

Median of Two Sorted Arrays @ LeetCode (Python)

Remove Duplicates from Sorted Array @ LeetCode (Python)

kitt posted @ 2014年2月14日 22:01 in LeetCode , 3450 阅读

使用两个指针

class Solution:
    # @param a list of integers
    # @return an integer
    def removeDuplicates(self, A):
        if not A: return 0
        slow = 0
        for fast in xrange(len(A)):
            if A[fast] == A[slow]:
                continue
            else:
                slow += 1
                A[slow] = A[fast]
        return slow + 1

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