Python: Calculate the maximum profit from selling and buying values of stock
Python Basic - 1: Exercise-74 with Solution
Write a Python program to calculate the maximum profit from selling and buying values of stock. An array of numbers represent the stock prices in chronological order.
For example, given [8, 10, 7, 5, 7, 15], the function will return 10, since the buying value of the stock is 5 dollars and sell value is 15 dollars.
Sample Solution:
Python Code:
def buy_and_sell(stock_price):
max_profit_val, current_max_val = 0, 0
for price in reversed(stock_price):
current_max_val = max(current_max_val, price)
potential_profit = current_max_val - price
max_profit_val = max(potential_profit, max_profit_val)
return max_profit_val
print(buy_and_sell([8, 10, 7, 5, 7, 15]))
print(buy_and_sell([1, 2, 8, 1]))
print(buy_and_sell([]))
Sample Output:
10 7 0
Flowchart:

Python Code Editor:
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Previous: Write a Python program to remove the duplicate elements of a given array of numbers such that each element appear only once and return the new length of the given array.
Next: Write a Python program to remove all instances of a given value from a given array of integers and find the length of the new array.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.
Python: Tips of the Day
What is the difference between Python's list methods append and extend?
append: Appends object at the end.
x = [1, 2, 3] x.append([4, 5]) print (x)
Output:
[1, 2, 3, [4, 5]]
extend: Extends list by appending elements from the iterable.
x = [1, 2, 3] x.extend([4, 5]) print (x)
Output:
[1, 2, 3, 4, 5]
Ref: https://bit.ly/2AZ6ZFq
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