主題
題目:
A sequence of numbers is called an arithmetic progression if the difference between any two consecutive elements is the same.
Given an array of numbers arr, return true if the array can be rearranged to form an arithmetic progression. Otherwise, return false.
欸對，就確認一個list裡面全部值是否可以成為等差數列
| class Solution: def canMakeArithmeticProgression(self, arr) -> bool: arr.sort() diff = arr[1] - arr[0] for i in range(2, len(arr)): if arr[i] - arr[i - 1] != diff: return False return True |
感覺比two sum簡單太多ㄌ= =
