Problem LeetCode Given an integer arraynums, return the sum of divisors of the integers in that array that have exactly four divisors. If there is no such integer in the array, return0. Example 1: Input:nums=[21,4,7]Output:32Explanation:21 has 4 divisors:1,3,7,214 has 3 divisors:1...
LeetCode 1390. Four Divisors四因数【Medium】【Python】【数学】 Problem LeetCode Given an integer array nums, return the sum of divisors of the integers in that array that have exactly four divisors. If there is no such integer in the array, return 0. Example 1: Input: nums = [21,4,...
F. Four Divisors 题目连接: http://www.codeforces.com/contest/665/problem/F Description If an integer a is divisible by another integer b, then b is called the divisor of a. For example: 12 has positive 6 ...Leetcode C++ 《第181场周赛-2》 1390. 四因数 Leetcode C++ 《第181场周赛...
98-validate-binary-search-tree 981-time-based-key-value-store 985-sum-of-even-numbers-after-queries 987-vertical-order-traversal-of-a-binary-tree 990-satisfiability-of-equality-equations README.mdBreadcrumbs DSA-LeetCode /342-power-of-four / 342-power-of-four.cpp Lat...
Problem Description Find and list all four-digit numbers in decimal notation that have the property that the sum of its four digits equals the sum of its digits when represented in hexadecimal (base 16) notation and also equals the sum of its digits when represented in duodecimal (base 12)...
package leetcode func countPrimes(n int) int { isNotPrime := make([]bool, n) for i := 2; i*i < n; i++ { if isNotPrime[i] { continue } for j := i * i; j < n; j = j + i { isNotPrime[j] = true } } count := 0 for i := 2; i < n; i++ { if !is...
这是一道简单题,如果数组里面有重复数字就输出 true,否则输出 flase。 解题思路# 用map 判断即可。 代码# Go packageleetcodefunccontainsDuplicate(nums[]int)bool{record:=make(map[int]bool,len(nums))for_,n:=rangenums{if_,found:=record[n];found{returntrue}record[n]=true}returnfalse} ...
Leetcode - Power of Four My code: reference: https://discuss.leetcode.com/topic/42860/java-1-line-cheating-for-the-purpose-of-not-using-loops Good solution without good explanation,it's easy to find that power of 4 numbers ha... getability---four 1:引用类型有哪些?非引用类型有哪些...
http://acm.hdu.edu.cn/showproblem.php?pid=5938 题意,给出一串数字,在这串数字中按顺序插入+ - * /,问能得到最大的数字是多少。比如样例,1+2-3*4/5=1. 解法:很明显大小为20的字符串,肯定要开long long。如果直接枚举四个位置复杂度就是20^4,会TLE。所以我把它拆开出来,我枚举+和-的位置,记录...
828. Count Unique Characters of All Substrings of a Given String # 题目 # Let’s define a function countUniqueChars(s) that returns the number of unique characters on s, for example if s = "LEETCODE" then "L", "T","C","O","D" are the unique characters