Python: Inject a number in between each pair of adjacent numbers in a list of numbers
Python Programming Puzzles: Exercise-71 with Solution
Given a list of numbers and a number to inject, write a Python program to create a list containing that number in between each pair of adjacent numbers.
Input: [12, -7, 3, -89, 14, 88, -78, -1, 2, 7] Separator: 6 Output: [12, 6, -7, 6, 3, 6, -89, 6, 14, 6, 88, 6, -78, 6, -1, 6, 2, 6, 7] Input: [1, 2, 3, 4, 5, 6] Separator: 9 Output: [1, 9, 2, 9, 3, 9, 4, 9, 5, 9, 6]
Pictorial Presentation:

Sample Solution-1:
Python Code:
#License: https://bit.ly/3oLErEI
def test(nums, sep):
ans = [sep] * (2 * len(nums) - 1)
ans[::2] = nums
return ans
nums = [12, -7, 3, -89, 14, 88, -78, -1, 2, 7]
separator = 6
print("List of numbers:",nums)
print("Separator:",separator)
print("Inject the separator in between each pair of adjacent numbers of the said list:")
print(test(nums,separator))
nums = [1, 2, 3, 4, 5, 6]
separator = 9
print("\nList of numbers:",nums)
print("Separator:",separator)
print("Inject the separator in between each pair of adjacent numbers of the said list:")
print(test(nums,separator))
Sample Output:
List of numbers: [12, -7, 3, -89, 14, 88, -78, -1, 2, 7] Separator: 6 Inject the separator in between each pair of adjacent numbers of the said list: [12, 6, -7, 6, 3, 6, -89, 6, 14, 6, 88, 6, -78, 6, -1, 6, 2, 6, 7] List of numbers: [1, 2, 3, 4, 5, 6] Separator: 9 Inject the separator in between each pair of adjacent numbers of the said list: [1, 9, 2, 9, 3, 9, 4, 9, 5, 9, 6]
Flowchart:

Visualize Python code execution:
The following tool visualize what the computer is doing step-by-step as it executes the said program:
Sample Solution-2:
Python Code:
#License: https://bit.ly/3oLErEI
def test(nums, sep):
result = []
for i in range(len(nums)):
if i == len(nums) - 1:
result.append(nums[i])
else:
result.append(nums[i])
result.append(sep)
return result
nums = [12, -7, 3, -89, 14, 88, -78, -1, 2, 7]
separator = 6
print("List of numbers:",nums)
print("Separator:",separator)
print("Inject the separator in between each pair of adjacent numbers of the said list:")
print(test(nums,separator))
nums = [1, 2, 3, 4, 5, 6]
separator = 9
print("\nList of numbers:",nums)
print("Separator:",separator)
print("Inject the separator in between each pair of adjacent numbers of the said list:")
print(test(nums,separator))
Sample Output:
List of numbers: [12, -7, 3, -89, 14, 88, -78, -1, 2, 7] Separator: 6 Inject the separator in between each pair of adjacent numbers of the said list: [12, 6, -7, 6, 3, 6, -89, 6, 14, 6, 88, 6, -78, 6, -1, 6, 2, 6, 7] List of numbers: [1, 2, 3, 4, 5, 6] Separator: 9 Inject the separator in between each pair of adjacent numbers of the said list: [1, 9, 2, 9, 3, 9, 4, 9, 5, 9, 6]
Visualize Python code execution:
The following tool visualize what the computer is doing step-by-step as it executes the said program:
Python Code Editor :
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Python: Tips of the Day
Clamps num within the inclusive range specified by the boundary values x and y:
Example:
def tips_clamp_num(num,x,y): return max(min(num, max(x, y)), min(x, y)) print(tips_clamp_num(2, 4, 6)) print(tips_clamp_num(1, -1, -6))
Output:
4 -1
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