Python - 在范围内而不是在集合中查找数字

给定一组数字和范围，任务是编写一个Python程序来提取范围内不在集合中的所有数字。

例子：

Input : test_set = {6, 4, 2, 7, 9}, low, high = 5, 10
Output : [5, 8]
Explanation : 6, 7 and 9 are present in set, remaining 5, 8 are in output.

Input : test_set = {6, 4, 2, 7, 9}, low, high = 5, 8
Output : [5]
Explanation : 6 and 7 are present in set, remaining 5 is in output.

方法#1：使用循环

在这种情况下，我们迭代范围内的所有元素，并使用条件语句省略结果中不存在于集合中的元素。

Python3

# Python3 code to demonstrate working of
# Range Numbers not in set
# Using loop
  
# initializing set
test_set = {6, 4, 2, 7, 9}
  
# printing original set
print("The original set is : " + str(test_set))
  
# initializing range
low, high = 5, 10
  
res = []
for ele in range(low, high):
  
    # getting elements not in set
    if ele not in test_set:
        res.append(ele)
  
# printing result
print("Elements not in set : " + str(res))

输出：

The original set is : {2, 4, 6, 7, 9}
Elements not in set : [5, 8]

方法#2：使用“-”运算符

在此，我们使用“-”运算符执行通过集合元素从范围获取差异的任务。

蟒蛇3

# Python3 code to demonstrate working of
# Range Numbers not in set
# Using "-" operator
  
# initializing set
test_set = {6, 4, 2, 7, 9}
  
# printing original set
print("The original set is : " + str(test_set))
  
# initializing range
low, high = 5, 10
  
# using "-" operator to get difference
res = list(set(range(low, high)) - test_set)
  
# printing result
print("Elements not in set : " + str(res))

输出：

The original set is : {2, 4, 6, 7, 9}
Elements not in set : [8, 5]