Python程序使用集合在三个列表中查找通用元素
给定三个用户输入列表，我们的任务是从这三个列表中找出共同的元素。在这里，我们正在应用交集方法。
示例
Input A=[2, 3, 4, 5, 6] B=[2, 3, 7, 6, 90] C=[2, 3, 45, 34] Common elements=[2, 3]
算法
Step1: input the elements of three lists. Step2: Use intersection method, first convert lists to sets then apply intersection method of two sets and find out common elements then this set intersect with the third set.
范例程式码
def common_ele(my_A, my_B, my_C):
my_s1 = set(my_A)
my_s2 = set(my_B)
my_s3 = set(my_C)
my_set1 = my_s1.intersection(my_s2)
output_set = my_set1.intersection(my_s3)
output_list = list(output_set)
print(output_list)
if __name__ == '__main__' :
# First List
A=list()
n=int(input("Enter the size of the List"))
print("Enter the number")
for i in range(int(n)):
p=int(input("Size="))
A.append(int(p))
print (A)
# Second List
B=list()
n1=int(input("Enter the size of the List"))
print("Enter the number")
for i in range(int(n1)):
p=int(input("Size="))
B.append(int(p))
print (B)
# Third Array
C=list()
n2=int(input("Enter the size of the List"))
print("Enter the number")
for i in range(int(n2)):
p=int(input("Size="))
C.append(int(p))
print (C)
# Calling Function
common_ele(A, B, C)输出结果
Enter the size of the List 3 Enter the number Size= 2 [2] Size= 1 [2, 1] Size= 2 [2, 1, 2] Enter the size of the List 3 Enter the number Size= 2 [2] Size= 1 [2, 1] Size= 4 [2, 1, 4] Enter the size of the List 4 Enter the number Size= 3 [3] [] Size= 2 [3, 2] [2] Size= 1 [3, 2, 1] [1, 2] Size= 3 [3, 2, 1, 3] [1, 2]
热门推荐
10 姐妹结婚红包简短祝福语
11 元旦祝福语简短有深度
12 薛之谦祝福语简短
13 女儿升学宴祝福语简短
14 求助短信生日祝福语简短
15 简短祝福语中考女孩的话
16 盛夏的温馨祝福语简短
17 中班入学祝福语简短大全
18 给舍友送祝福语简短