Python序列中第二最重复的单词？
给出了字符串，我们的任务是找出第二个重复的单词。在这里，我们使用Counter(iterator)创建字典，字典包含单词作为关键字，其频率作为值。
算法
Step 1: Create user define list. Step 2: Then convert list into a dictionary. Step 2: Next get the values and sort them in descending order. Step 3: Then the second element is the second largest value. Step 4: Next again traverse whole dictionary and display key whose value is equal to second largest element.
范例程式码
# To print Second most repeated word in a sequence in Python from collections
import Counter
defsecondrepeatation(A):
# Convert list into dictionary
con = Counter(A)
res = sorted(con.values(), reverse=True)
maxi = res[1]
for (key, val) in con.items():
if val == maxi:
print("Second most repeated word ::>",key)
return
# Driver program
if __name__ == "__main__":
A=list() #create user defined list
n=int(input("Enter the size of the List ::"))
print("Enter the word ::")
for i in range(int(n)):
k=input("")
A.append(k)
secondrepeatation(A) # call function输出结果
Enter the size of the List ::4 Enter the word :: aa bb aa cc Second most repeated word ::> bb
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