Python: Each triple of eaten, need, stock return a pair of total appetite and remaining

Last update on April 17 2025 13:09:01 (UTC/GMT +8 hours)

Appetite and Stock Calculation

For each triple of eaten, need, and stock, write a Python program to get a pair of total appetite and remaining.

Input:
[[2, 5, 6], [3, 9, 22]]
Output:
[[7, 1], [12, 13]]

Input:
[[2, 3, 18], [4, 9, 2], [2, 5, 7], [3, 8, 12], [4, 9, 106]]
Output:
[[5, 15], [6, 0], [7, 2], [11, 4], [13, 97]]

Input:
[[1, 2, 3], [4, 5, 6]]
Output:
[[3, 1], [9, 1]]

Sample Solution:

Python Code:

# License: https://bit.ly/3oLErEI

# Define a function named 'test' that takes a list of triples as parameter 'nums'
def test(nums):
    # Return a list of lists, where each inner list contains the total appetite and remaining items
    return [[a + min(b, c), max(0, c - b)] for a, b, c in nums]

# Example 1
nums1 = [[2, 5, 6], [3, 9, 22]]
print("Original list (triple) of lists:")
print(nums1)
print("Each triple of eaten, need, stock return a pair of total appetite and remaining:")
print(test(nums1))

# Example 2
nums2 = [[2, 3, 18], [4, 9, 2], [2, 5, 7], [3, 8, 12], [4, 9, 106]]
print("\nOriginal list (triple) of lists:")
print(nums2)
print("Each triple of eaten, need, stock return a pair of total appetite and remaining:")
print(test(nums2)) 

# Example 3
nums3 = [[1, 2, 3], [4, 5, 6]]
print("\nOriginal list (triple) of lists:")
print(nums3)
print("Each triple of eaten, need, stock return a pair of total appetite and remaining:")
print(test(nums3))

Sample Output:

Original list (triple) of lists:
[[2, 5, 6], [3, 9, 22]]
Each triple of eaten, need, stock return a pair of total appetite and remaining:
[[7, 1], [12, 13]]

Original list (triple) of lists:
[[2, 3, 18], [4, 9, 2], [2, 5, 7], [3, 8, 12], [4, 9, 106]]
Each triple of eaten, need, stock return a pair of total appetite and remaining:
[[5, 15], [6, 0], [7, 2], [11, 4], [13, 97]]

Original list (triple) of lists:
[[1, 2, 3], [4, 5, 6]]
Each triple of eaten, need, stock return a pair of total appetite and remaining:
[[3, 1], [9, 1]]

Flowchart:

For more Practice: Solve these Related Problems:

Write a Python program to process a list of triples [eaten, need, stock] and return a list of pairs [total appetite, remaining stock].
Write a Python program to iterate over a list of three-element lists and calculate the sum of the first two elements, then subtract it from the third.
Write a Python program to use list comprehension to compute, for each triple, the pair (sum of eaten and need, stock minus that sum).
Write a Python program to implement a function that takes a triple and returns the calculated appetite and remaining stock as a pair.

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Python Code Editor :

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