In this Python list program, we will take a run-length encoded list as input and decode it in a list with the help of the below-given steps.
Decode run-length encoded list:
Steps to solve the program
- Take a run-length encoded list as input and create an empty list.
- Use for loop to iterate over every element from the list.
- If an element is encoded list then replace the first element of the list with the second element and add it to the empty list.
- Print the list to see the output.
#Input list
list1 = [[2, 1], 2, 3, [2, 4], 5, 1]
list2 = []
for value in list1:
if isinstance(value,list):
value[0] = value[1]
list2.append(value[0])
list2.append(value[1])
else:
list2.append(value)
#Printing output
print(list2)
Output :
[1, 1, 2, 3, 4, 4, 5, 1]
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