how to resolve error index out of range in python?

Question

n=int(input())

c=list(map(int,input().strip().split(" ")))

i=0

co=0

l=len(c)

for i in range(l):

    if(c[i+2]==0 and i<(l-2)):

        i=i+2

        co=co+1

    else:

        i=i+1

        co=co+1

print(co)

    

    

Answer 1

The "index out of range" error in Python occurs when you're trying to access an element at an index that is beyond the range of the list. In your provided code snippet, the error could potentially occur in the line if(c[i+2]==0 and i<(l-2)) when the value of i is close to the end of the list c. To resolve this error, you can modify your code as follows:

n = int(input())

c = list(map(int, input().strip().split(" ")))

co = 0

l = len(c)

i = 0

while i < l:

    if i < l - 2 and c[i + 2] == 0:

        i += 2

        co += 1

    else:

        i += 1

        co += 1

print(co)

In this modified version, I removed the duplicate initialization of i and co and changed the loop to a while loop for better control. The condition i < l - 2 is checked before accessing c[i + 2] to ensure that you don't go beyond the list's boundaries.

By making these changes, you should be able to avoid the "index out of range" error in your code.

Answer 2

To resolve the "index out of range" error in Python, which occurs when attempting to access an element beyond the range of a list, you can make the following modifications to your code snippet:

n = int(input())

c = list(map(int, input().strip().split(" ")))

co = 0

l = len(c)

i = 0

while i < l:

    if i < l - 2 and c[i + 2] == 0:

        i += 2

        co += 1

    else:

        i += 1

        co += 1

print(co)

In this adjusted version, the code has been restructured. The redundant initialization of i and co has been removed, and the for loop has been replaced with a while loop for better control. By checking the condition i < l - 2 before accessing c[i + 2], you can ensure that you do not exceed the boundaries of the list.

Applying these modifications should help you overcome the "index out of range" error in your Python code.

Answer 3

To overcome the "index out of range" error in Python, which occurs when trying to access an element outside the list's range, you can implement the following code modifications:

n = int(input())

c = list(map(int, input().strip().split(" ")))

co = 0

l = len(c)

i = 0

while i < l:

    if i < l - 2 and c[i + 2] == 0:

        i += 2

        co += 1

    else:

        i += 1

        co += 1

print(co)

By making these specific changes, such as removing redundant variable initializations and using a while loop instead of a for loop, you can address the issue. Additionally, the condition i < l - 2 is verified before accessing c[i + 2] to ensure that you stay within the list boundaries.

Applying these modifications will enable you to resolve the "index out of range" error effectively in your Python code.