Jaddong's Lab

Staircase Consider a staircase of size : # ## ### #### Observe that its base and height are both equal to n, and the image is drawn using # symbols and spaces. The last line is not preceded by any spaces. Write a program that prints a staircase of size n. Function Description Complete the staircase function in the editor below. It should print a staircase as described above. staircase has the fo..

Plus Minus Given an array of integers, calculate the ratios of its elements that are positive, negative, and zero. Print the decimal value of each fraction on a new line with places after the decimal. Note: This challenge introduces precision problems. The test cases are scaled to six decimal places, though answers with absolute error of up to are acceptable. Example There are elements, two posi..

Diagonal Difference Given a square matrix, calculate the absolute difference between the sums of its diagonals. For example, the square matrix is shown below: 1 2 3 4 5 6 9 8 9 The left-to-right diagonal = . The right to left diagonal = . Their absolute difference is . Function description Complete the function in the editor below. diagonalDifference takes the following parameter: int arr[n][m]:..

A Very Big Sum In this challenge, you are required to calculate and print the sum of the elements in an array, keeping in mind that some of those integers may be quite large. Function Description Complete the aVeryBigSum function in the editor below. It must return the sum of all array elements. aVeryBigSum has the following parameter(s): int ar[n]: an array of integers . Return int: the sum of ..

Compare the Triplets Alice and Bob each created one problem for HackerRank. A reviewer rates the two challenges, awarding points on a scale from 1 to 100 for three categories: problem clarity, originality, and difficulty. 앨리스와 밥은 각각 해커랭크에 문제를 하나 만들었다. 한 리뷰어는 세 개의 카테코리(명확성, 독창성, 난이도)에 대해 1부터 100까지 점수를 매겨 채점한다. The rating for Alice's challenge is the triplet a = (a[0], a[1], a[2]), and the rating ..

Simple Array Sum Easy Problem Given an array of integers, find the sum of its elements. 주어진 정수 배열에 대해 요소들의 합을 구해라. Function Description Complete the simpleArraySum function in the editor below. It must return the sum of the array elements as an integer. 아래 에디터에 있는 함수 simpleArraySum 를 완성해라. 정수로 배열의 합을 리턴해야한다. simpleArraySum has the following parameter(s): ar: an array of integers Input Format The..

1. Two Sum Easy Description Given an array of integers, return indices of the two numbers such that they add up to a specific target. 주어진 정수의 배열에서 두 숫자의 합산이 특정 목표 값인 두 숫자의 인덱스를 반환하세요. You may assume that each input would have exactly one solution, and you may not use the same element twice. 각 입력에 하나의 솔루션이 있다고 가정하고, 같은 요소를 두 번 사용할 수 없습니다. Example: Given nums = [2, 7, 11, 15], target = 9, Because ..