Python|从给定的句子中删除所有重复的单词

给定一个包含 n 个单词/字符串的句子。删除所有彼此相似的重复单词/字符串。
例子：

Input : Geeks for Geeks
Output : Geeks for

Input : Python is great and Java is also great
Output : is also Java Python and great

我们可以使用Python Counter() 方法快速解决这个问题。方法很简单。
1) 将用空格分隔的输入句子拆分为单词。
2）因此，首先要将所有这些字符串放在一起，我们将在给定的字符串列表中加入每个字符串。
3) 现在使用 Counter 方法创建一个字典，将字符串作为键，将它们的频率作为值。
4）加入每个单词都是唯一的，形成单个字符串。

Python

from collections import Counter
 
def remov_duplicates(input):
 
    # split input string separated by space
    input = input.split(" ")
 
    # now create dictionary using counter method
    # which will have strings as key and their
    # frequencies as value
    UniqW = Counter(input)
 
    # joins two adjacent elements in iterable way
    s = " ".join(UniqW.keys())
    print (s)
 
# Driver program
if __name__ == "__main__":
    input = 'Python is great and Java is also great'
    remov_duplicates(input)

输出

and great Java Python is also

替代方法：-

Python

# Program without using any external library
s = "Python is great and Java is also great"
l = s.split()
k = []
for i in l:
 
    # If condition is used to store unique string
    # in another list 'k'
    if (s.count(i)>=1 and (i not in k)):
        k.append(i)
print(' '.join(k))

输出

Python is great and Java also

方法3：另一个更短的实现：

Python3

# Python3 program
 
string = 'Python is great and Java is also great'
 
print(' '.join(dict.fromkeys(string.split())))

输出

Python is great and Java also

https://youtu.be/tTjBhgJ

-NDE