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Print the minimum number of deletion operations required to make a list as equal
3 ответов
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please be more clear....explain your question with an example
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Input Format:
The first line contains N denote the numbers of elements in list.
The next line contains a list of N numbers
Output Format:
Print the minimum number of deletion operations required to make a list as equal.
Sample Input:
5
3 3 2 1 3
Sample Output:
2
Explanation:
If we delete 2,1 the list will become [3,3,3].So we need two delete operations required to make a list equal
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OK...got it
suppose n is the length of list
the algorithm is like first you need to count the frequency of the most frequent element in the list(say freq) and then in order to get the answer you just need to do (n-freq)
import sys
n=eval(input())#number of elements
lst1=list(map(int,input().split()))#creating a list
l=len(lst1)#list length
if(n!=l):
sys.exit()
#extracing the unique elements from lst1
lst2=[]
for i in range(0,l):
if(lst1[i] in lst2):
continue
else:
lst2.append(lst1[i])
#finding the frequency of the most frequent #element of lst1
big=0
for i in range(0,len(lst2)):
c=0
for j in range(0,l):
if(lst2[i]==lst1[j]):
c+=1
if(c>big):
big=c
#required answer
print(l-big)
hope this will be helpful