Code is throwing Runtime Error

#1

Code is throwing Runtime Error

n = int(input())
sarr = []
for i in range(n):
sarr.append(input())

def fun(sarr, i, s):

if(i==len(sarr)):
    farr = [0]*26
    for i in s:
        if farr[ord(i)-ord('a')]==1:
            return 0
            
        farr[ord(i)-ord('a')] = 1
    return len(s)

c1 = -1
c2 = -1
if(len(s)+len(sarr[i])<=26):
    c1 = fun(sarr, i+1, s+sarr[i])
c2 = fun(sarr, i+1, s)
return max(c1,c2)

print(fun(sarr, 0, “”))

#2

@rahulnagubandi From which course you are bcoz I am TA of Java Courses not python.

#3

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