Diagonal Difference

문제

코드

def diagonalDifference(arr):
    right_diagonal_sum = 0
    left_diagonal_sum = 0

    for i in range(0, len(arr)):
        right_diagonal_sum += arr[i][i]
        left_diagonal_sum += arr[i][(len(arr)-1)-i]

    return abs(right_diagonal_sum - left_diagonal_sum)

새로 알게된 지식

abs(right_diagonal_sum - left_diagonal_sum)
abs() : 해당하는 값의 절대값을 반환해주는 함수

출처

https://www.hackerrank.com/challenges/one-month-preparation-kit-diagonal-difference/problem?h_l=interview&isFullScreen=false&playlist_slugs%5B%5D=preparation-kits&playlist_slugs%5B%5D=one-month-preparation-kit&playlist_slugs%5B%5D=one-month-week-one