Given a non negative integer number num. For every numbers i in the range 0 ≤ i ≤ num calculate the number of 1’s…
Given an array nums of n integers, are there elements a, b, c in nums such that a + b + c = 0? Find all unique triplets in the…
nums
本篇文章介紹的是透過 cprofile 分析 python program ,哪些 function, module 值得優化。
Given a 32-bit signed integer, reverse digits of an integer.
Determine whether an integer is a palindrome. An integer is a palindrome when it reads the same backward as…
Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M.
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V
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L
C
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M