字典在不同的键中找到相似的值

如何解决字典在不同的键中找到相似的值

请帮助,我有一本这样的字典:

sdata = {'A':[1,2,3,4,5,6],'B':[11,12,3,14,15],'C':[8,9,10 ,1,2],'D':[15,3,18,19,20]}

我希望输出为:

A和C中相同数字的位数:2

数字:1,2

B和D中相同位数的数字:1

15

,还比较所有4个键并返回唯一数字。 那将是 17个唯一编号。

以下是我的代码:

keyAvalue = sdata.get('A')
    keyCvalue = sdata.get('C')
    keyBvalue= sdata.get('B')
    keyDvalue= sdata.get('D')
    countA= len(keyAvalue)
    countC= len(keyCvalue)
    compareAC = []
    compareBD= []
    for number in keyAvalue:
        if number in keyCvalue:
            if number not in compareAC:
                compareAC.append(number)
                countAC = len(compareAC)
    for number in keyBvalue:
        if number in keyDvalue:
            if number not in compareBD:
                compareBD.append(number)
                countBD = len(compareBD)
    for key,value in studentData.items():
        count = len([item for item in value if item]) #count number of values in key
        value.sort()
        formatValue = (" ".join(map(str,value)))
        formatAC = (" ".join(map(str,compareAC)))
        formatBD = (" ".join(map(str,compareBD)))   
 print (f'in both A and C = {countAC}\nnumber: {formatAC}\n')
    print (in both B and D = {countBD}\nnumber: {formatBD}\n')
    print (f'Number of unique number in A and C = {countA + countC - countAC}')

有没有更简单的方法可以做到这一点?请提前帮助您。顺便说一下,我不打算使用set数据类型来做到这一点。

解决方法

可以使用set.intersection()找到两个列表之间的公共元素。

假设我们有2个列表:

list1 = [1,2]
list2 = [1,3]

将list1转换为set,以便我们可以对其执行相交操作。

list1_as_set = set(list1)
intersection = list1_as_set.intersection(list2)

现在再次将此交集转换为列表

intersection_as_list = list(intersection)

要打印两个列表中的公共元素数量及其公共元素:

print("Number of common elements in list1 and list2: {}".format(len(intersection_as_list)))
print("common elements in list1 and list2: {}".format(intersection_as_list))
,

尝试一下

from itertools import chain

def common_digits(l1,l2):
    return list(set(l1).intersection(l2))

def unique(l):
    return len(set(chain.from_iterable(l)))

sdata = {'A': [1,2,3,4,5,6],'B': [11,12,14,15],'C': [8,9,10,1,2],'D': [15,18,19,20]}

print(common_digits(sdata['A'],sdata['C']))

print(common_digits(sdata['B'],sdata['D']))

print(unique(sdata.values()))
,
sdata = {'A': [1,20]}

#going through the elements in sdata
for key in sdata.keys():
  #comparing every other list in sdata
  other_keys = [other for other in sdata.keys() if other != key]

  #checking the other list
  for other in other_keys:
    #the simliar count and value
    simliar = 0
    sim_vals = []
    #going through each value in the main list
    for value in sdata[key]:
      #checking if it is in the list
       if value in sdata[other]:
         simliar += 1
         sim_vals.append(value)

    print(other,key)
    #printing answer
    print(simliar)
    print(sim_vals)
,
prob= {'A':[1,'B':[11,'D':[15,20]}

A和C中唯一编号的数量

a_and_c=set(prob['A']).union(prob['C']) 
print("Number of unique number in A and C :",len(a_and_c),a_and_c)

B和D中唯一编号的数量

b_and_d=set(prob['B']).union(prob['D']) 
print("Number of unique number in B and D :",len(b_and_d),b_and_d)

dic中唯一数字的数量

print("Number of unique number in dic: ",len(a_and_c.union(b_and_d)))

概念:

enter image description here

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