elmagnifico's blog

LeetCode Solution(Easy.93-96)

c/c++，python，for work

93.Number Complement Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: The given integer is guaranteed to fi...

Posted on January 7, 2017; Words: 2104

LeetCode Solution(Easy.89-92)

c/c++，python，for work

89.Power of Three Given an integer, write a function to determine if it is a power of three. Follow up: Could you do it without using any loop / recursion? 89.Power of Three-Analysis 不用循环和递归判断是...

Posted on December 29, 2016; Words: 2275

LeetCode Solution(Easy.85-88)

c/c++，python，for work

85.Number of Boomerangs Given n points in the plane that are all pairwise distinct, a “boomerang” is a tuple of points (i, j, k) such that the distance between i and j equals the distance between ...

Posted on December 28, 2016; Words: 2438

LeetCode Solution(Easy.81-84)

c/c++，python，for work

81.First Unique Character in a String Given a string, find the first non-repeating character in it and return it’s index. If it doesn’t exist, return -1. Examples: s = "leetcode" return 0. s = ...

Posted on December 27, 2016; Words: 1574

LeetCode Solution(Easy.77-80)

c/c++，python，for work

77.Ransom Note Given an arbitrary ransom note string and another string containing letters from all the magazines, write a function that will return true if the ransom note can be constructed from...

Posted on December 26, 2016; Words: 1553

LeetCode Solution(Easy.73-76)

c/c++，python，for work

73.Island Perimeter You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/vertically (not diagonally)....

Posted on December 25, 2016; Words: 1981

LeetCode Solution(Easy.69-72)

c/c++，python，for work

69.Hamming Distance The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calculate the Hamming distance....

Posted on December 24, 2016; Words: 1302

LeetCode Solution(Medium.17-20)

c/c++，python，for work

17.Unique Paths A robot is located at the top-left corner of a m x n grid (marked ‘Start’ in the diagram below). The robot can only move either down or right at any point in time. The robot is tr...

Posted on December 22, 2015; Words: 1002

LeetCode Solution(Medium.13-16)

c/c++，python，for work

13.Integer to Roman Given an integer, convert it to a roman numeral. Input is guaranteed to be within the range from 1 to 3999. 13.Integer to Roman-Analysis 这个是要求把整数转换成罗马数字。和之前的easy系列中的14题是相反的 ...

Posted on December 21, 2015; Words: 2485

LeetCode Solution(Medium.9-12)

c/c++，python，for work

9.Search Insert Position Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were inserted in order. You may assume ...

Posted on December 19, 2015; Words: 3164

Elmagnifico's Blog

LeetCode Solution(Easy.93-96)

c/c++，python，for work

LeetCode Solution(Easy.89-92)

c/c++，python，for work

LeetCode Solution(Easy.85-88)

c/c++，python，for work

LeetCode Solution(Easy.81-84)

c/c++，python，for work

LeetCode Solution(Easy.77-80)

c/c++，python，for work

LeetCode Solution(Easy.73-76)

c/c++，python，for work

LeetCode Solution(Easy.69-72)

c/c++，python，for work

LeetCode Solution(Medium.17-20)

c/c++，python，for work

LeetCode Solution(Medium.13-16)

c/c++，python，for work

LeetCode Solution(Medium.9-12)

c/c++，python，for work

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