Python error "IndexError: list index out of range"

0 votes

I am trying to execute the following python code:

def construct(s, k, a):
    index = 0
    # Finding the index which is not -1
    for i in range(s):
        if (a[i]!=-1):
            index = i
    # Calculating the values of the indexes index-1 to 0
    for i in range(index-1, -1, -1):
        if (a[i]==-1):
            a[i]=(a[i + 1]-1 + k)% k
    # Calculating the values of the indexes index + 1 to n
    for i in range(index + 1, s):
            a[i]=(a[i-1]+1)% k
# Driver code
s, k = 6, 7
a = [1, 2, 3, 4, 5]
construct(s, k, a)

I get the following error:

IndexError: list index out of range
Jun 17, 2019 in Python by Alok

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