Given an array of integers, find two numbers such that they add up to a speci...
Implementation of a given order of 4 integers from large to small
MonthDays = {31,28,31,30,31,30,31,31,30,31,30,31}; if(isLeapYear(y)) MonthDays[1] = 29; int ans...= 0; for(int i=0; i<m-1; i++){ ans = ans + MonthDays[i]; } return...ans + d; } public static void main(String[] args) { BufferedReader br = new BufferedReader
The number of daffodils refers to an n-digit number (n≥3), the sum of the n-th ...
Given a linked list, remove the nth node from the end of list and return its he...
Enter a line of characters. Please count the numbers of letters, spaces, number...
Given a roman numeral, convert it to an integer. Input is guaranteed to be...
Given a string, find the length of the longest substring without repeating ch...
Implement atoi to convert a string to an integer. Hint: Carefully consider ...
Given an integer, convert it to a roman numeral. Input is guaranteed to ...
Given n non-negative integers a1, a2, …, an, where each represents a point at...
Example1: x = 123, return 321 Example2: x = -123, return -321
Merge k sorted linked lists and return it as one sorted list. Analyze and desc...
The string “PAYPALISHIRING” is written in a zigzag pattern on a given number ...
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Write a program that outputs the number of an integer input in the opposite ord...
Given a string S, find the longest palindromic substring in S. You may assume...
Implement regular expression matching with support for ‘.’ and ‘*’. ‘.’ Mat...
Reverse digits of an integer. Example1: x = 123, return 321 Example2: x ...
Write a function to find the longest common prefix string amongst an array of s...
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