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전체 글 (1651)
솜씨좋은장씨
Given an array of integers A sorted in non-decreasing order, return an array of the squares of each number, also in sorted non-decreasing order. Example 1: Input: [-4,-1,0,3,10] Output: [0,1,9,16,100] Example 2: Input: [-7,-3,2,3,11] Output: [4,9,9,49,121] Note: 1
Given an integer number n, return the difference between the product of its digits and the sum of its digits. Example 1: Input: n = 234 Output: 15 Explanation: Product of digits = 2 * 3 * 4 = 24 Sum of digits = 2 + 3 + 4 = 9 Result = 24 - 9 = 15 Example 2: Input: n = 4421 Output: 21 Explanation: Product of digits = 4 * 4 * 2 * 1 = 32 Sum of digits = 4 + 4 + 2 + 1 = 11 Result = 32 - 11 = 21 Const..
Given an integer n, add a dot (".") as the thousands separator and return it in string format. Example 1: Input: n = 987 Output: "987" Example 2: Input: n = 1234 Output: "1.234" Example 3: Input: n = 123456789 Output: "123.456.789" Example 4: Input: n = 0 Output: "0" Constraints: 0 str: if len(str(n)) < 4: return str(n) else: len_str = len(str(n)) loop_num = len_str // 3 mod_num_list = [] for i ..
Implement function ToLowerCase() that has a string parameter str, and returns the same string in lowercase. Example 1: Input: "Hello" Output: "hello" Example 2: Input: "here" Output: "here" Example 3: Input: "LOVELY" Output: "lovely" Solution class Solution: def toLowerCase(self, string: str) -> str: return string.lower() SOMJANG/CODINGTEST_PRACTICE 1일 1문제 since 2020.02.07. Contribute to SOMJANG..
Write a program to check whether a given number is an ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. Example 1: Input: 6 Output: true Explanation: 6 = 2 × 3 Example 2: Input: 8 Output: true Explanation: 8 = 2 × 2 × 2 Example 3: Input: 14 Output: false Explanation: 14 is not ugly since it includes another prime factor 7. Note: 1 is typically treated as an..
Given an array nums with n integers, your task is to check if it could become non-decreasing by modifying at most 1 element. We define an array is non-decreasing if nums[i]
Write a function that reverses a string. The input string is given as an array of characters char[]. Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra memory. You may assume all the characters consist of printable ascii characters. Example 1: Input: ["h","e","l","l","o"] Output: ["o","l","l","e","h"] Example 2: Input: ["H","a","..
Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitted to complete at most one transaction (i.e., buy one and sell one share of the stock), design an algorithm to find the maximum profit. Note that you cannot sell a stock before you buy one. Example 1: Input: [7,1,5,3,6,4] Output: 5 Explanation: Buy on day 2 (price = 1) and sell on day ..