Only One String Alphabets

PKJ

 Coding Problem Keys 

 Only One String Alphabets 

 Problem Statement 

N string values are passed as input to the program. Each string will contain only the alphabets a-z in lower case. A given alphabet may be repeated any number of times. The program must print the count C of the alphabets that are present only in one string value.

 Boundary Condition(s) 

2 <= N <= 500
1 <= Length of string value <= 1000

 Input Format 

The first line contains N.
Next N lines contains the N string values.

 Output Format 

The first line contains Count C.

 Example Input/Output 1 

 Input 

3
mnppqqr
ajkmnnm
poormanagement

 Output 

7

 Explanation 

qtegjko are the 7 characters that are present only in one string value.
q is present only in 1st string
j & k are present only in 2nd string
t e g o are present only in 3rd string

 Note: Max Execution Time Limit: 5000 millisecs 

 Solution 

 Programming Language: Python 3 Language 

n=int(input())
l=[input().strip() for i in range(n)]
unique=[];duplicate=[]
for i in l:
    s=[]
    for j in i:
        if j in duplicate and j in unique:
            unique.remove(j)
        elif j in duplicate:
            continue
        elif j not in unique:
            unique.append(j)
            s.append(j)
    duplicate.extend(s)
print(len(unique))

# Published By PKJCODERS

 (Note: Incase If the code doesn't Pass the output kindly comment us with your feedback to help us improvise.) 

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