lothar.buchholz
/
buy-and-sell-n-times
0
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
4 Commits
3 Branches
0 Tags
116 KiB
Java 65.4%
CSV 18%
Gradle 16.6%
 
 
 
streams
for-loops
master
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from '2656ded38f'
${ noResults }
Go to file
Lothar Buchholz 2656ded38f stream solution for n sales 5 years ago
.idea Initial commit 5 years ago
doc Added description and testdata 5 years ago
gradle/wrapper Initial commit 5 years ago
src stream solution for n sales 5 years ago
.gitignore Initial commit 5 years ago
README.md updated problem description, test cases and test class to match n-sales 5 years ago
build.gradle Initial commit 5 years ago
gradlew Initial commit 5 years ago
gradlew.bat Initial commit 5 years ago
settings.gradle updated problem description, test cases and test class to match n-sales 5 years ago

README.md

Buy and Sell n-times

Goal

Given is the price-development of an arbitrary stock.

stock-price over time

Suppose you have perfect knowledge and are able to buy and sell the stock multiple times. Write an algorithm that outputs the maximum profit that can be made by exactly n sales.

  • The price-development is given for an arbitrary number of days.
  • A stock can only be sold on the next day.
  • Stock-prices are given as integers
  • Each buy must be made on another date after the previous sale

Input

A blank-separated array of numbers.
The first number is the number of sales allowed.
All following numbers are stock-prices.

Each position symbolises the stock-price of a given day.

Output

The maximum profit that can be made within that period by n sales.

Constraints

  • 2 <= n <= 10
  • 2 * n <= days with stock-prices <= 50
  • 1 <= stock-price <= 2,147,483,647

Example

Input: 3 12 11 13 9 12 8 14 13 15
where n is 3

Output: 12