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挑战程序设计竞赛2.6习题:X-factor Chains POJ - 3421
Given a positive integer X, an X-factor chain of length m is a sequence of integers, 1 = X0, X1, X2, …, Xm = X satisfying Xi < Xi+1 and Xi | Xi+1 wher ...
分类:其他好文   时间:2020-02-10 18:10:40    阅读次数:107
[LeetCode]1295. Find Numbers with Even Number of Digits
Given an array nums of integers, return how many of them contain an even number of digits. Example 1: Input: nums = [12,345,2,6,7896]Output: 2Explanat ...
分类:其他好文   时间:2020-02-10 17:53:55    阅读次数:65
PAT甲组 1010 Radix (二分)
1010 Radix (25分) Given a pair of positive integers, for example, $6$ and $110$, can this equation $6 = 110$ be true? The answer is , if 6 is a decimal ...
分类:其他好文   时间:2020-02-10 13:52:09    阅读次数:60
Codeforces Round #609 (Div. 2)E--K Integers(贪心+二分+树状数组+逆序对)
K Integers 参考博客:https://blog.csdn.net/Q755100802/article/details/103664555 【题意】 给定一个1到n的排列,可以交换相邻的两个元素。 现在定义一个函数f(x),表示在原排列中,通过交换操作,形成一个1,2,3....x的排列的 ...
分类:编程语言   时间:2020-02-10 11:39:21    阅读次数:67
[LC] 273. Integer to English Words
Convert a non-negative integer to its english words representation. Given input is guaranteed to be less than 231 - 1. Example 1: Input: 123 Output: " ...
分类:其他好文   时间:2020-02-10 10:16:33    阅读次数:75
1342. Number of Steps to Reduce a Number to Zero
Given a non-negative integer num, return the number of steps to reduce it to zero. If the current number is even, you have to divide it by 2, otherwis ...
分类:其他好文   时间:2020-02-10 10:02:26    阅读次数:76
LeetCode19 移除倒数第N个元素
链接 "Remove Nth Node From End of List" 难度 Medium 描述 Given a linked list, remove the _n_ th node from the end of list and return its head. 给定一个链表,要求移除导数 ...
分类:其他好文   时间:2020-02-10 09:48:14    阅读次数:47
120. Triangle
Problem : Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row below. For example, gi ...
分类:其他好文   时间:2020-02-10 00:20:24    阅读次数:81
1349. Maximum Students Taking Exam(DP,状态压缩)
"题目" 1349. Maximum Students Taking Exam Add to List Share Given a m n matrix seats that represent seats distributions in a classroom. If a seat is bro ...
分类:其他好文   时间:2020-02-09 20:01:01    阅读次数:125
【leetcode】1346. Check If N and Its Double Exist
题目如下: Given an array arr of integers, check if there exists two integers N and M such that N is the double of M ( i.e. N = 2 * M). More formally check ...
分类:其他好文   时间:2020-02-09 18:55:33    阅读次数:79
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