Python程序打印两个列表的所有常见元素。
给定两个列表，打印两个列表的所有公共元素。
示例-
Input : L1 = [5, 6, 7, 8, 9]L2 = [5, 13, 34, 22, 90]
Output : {5}
说明
这两个列表的共同元素是5。
算法
Step1 : create two user input lists.Step2 : Convert the lists to sets and then print set1&set2.
Step3 : set1 and set2 returns the common elements set, where set1 is the list1 and set2 is the list2.
范例程式码
# Python program to find the common elements# in two lists
def commonelemnets(a, b):
seta = set(a)
setb = set(b)
if (seta & setb):
print("Common Element ::>",seta & setb)
else:
print("No common elements")
A=list()
n=int(input("Enter the size of the First List ::"))
print("Enter the Element of First List ::")
for i in range(int(n)):
k=int(input(""))
A.append(k)
B=list()
n=int(input("Enter the size of the Second List ::"))
print("Enter the Element of Second List ::")
for i in range(int(n)):
k=int(input(""))
B.append(k)
commonelemnets(A,B)
输出结果
Enter the size of the First List :: 4Enter the Element of First List ::
4
5
6
7
Enter the size of the Second List :: 4
Enter the Element of Second List ::
1
2
3
4
Common Element ::> {4}
Enter the size of the First List :: 4
Enter the Element of First List ::
1
2
3
4
Enter the size of the Second List :: 4
Enter the Element of Second List ::
5
6
7
8
No common elements
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