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 新年祝福语大全简短老师
11 七一祝福语明信片文案简短
12 新年祝福语简短创意兄弟
13 租房明天搬家祝福语简短
14 免费生日祝福语简短独特
15 婚礼仪式祝福语简短
16 剪简短的新年祝福语
17 古风婚礼祝福语唯美简短
18 感动妈妈的祝福语简短