列出兩個列表中差別的 Python 程式。


本題中給出了兩個列表。我們的任務是顯示兩個列表之間的差異。Python 提供了 set() 方法。我們在這裡使用這種方法。集合是一個無序集合,沒有重複的元素。集合物件還支援數學運算,如並集、交集、差集和對稱差集。

示例

Input::A = [10, 15, 20, 25, 30, 35, 40]
B = [25, 40, 35] 
Output:
[10, 20, 30, 15]

說明

difference list = A - B

演算法

Step 1: Input of two arrays.
Step 2: convert the lists into sets explicitly.
Step 3: simply reduce one from the other using the subtract operator.

示例程式碼

# Python code to get difference of two lists 
# Using set() 
def Diff(A, B):
   print("Difference of two lists ::>")
   return (list(set(A) - set(B))) 

# Driver Code 
A=list()
n1=int(input("Enter the size of the first List ::"))

print("Enter the Element of first List ::")
for i in range(int(n1)):
   k=int(input(""))
   A.append(k)
B=list()
n2=int(input("Enter the size of the second List ::"))
print("Enter the Element of second List ::")
for i in range(int(n2)):
   k=int(input(""))
   B.append(k)
print(Diff(A, B)) 

輸出

Enter the size of the first List ::5
Enter the Element of first List ::
11
22
33
44
55
Enter the size of the second List ::4
Enter the Element of second List ::
11
55
44
99
Difference of two lists ::>
[33, 22]

更新於: 30-Jul-2019

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