BabbleDay's Blog

心得：特殊情况还是单独处理，可以简化思路，代码正确实现后，再考虑合并特殊情况

def summaryRanges(self, nums):
        rtn = []
        if len(nums) == 0:
            return rtn
        if len(nums) == 1:
            rtn.append(str(nums[0]))
            return rtn

        i = 0
        while(i<len(nums)):
            start = nums[i]
            end = nums[i]
            while(i+1<len(nums) and end+1 == nums[i+1]):
                end = nums[i+1]
                i += 1

            if start==end:
                rtn.append(str(start))
            else:
                rtn.append(str(start)+"->"+str(end))
            i += 1
        
        return rtn