Simple KNN application make to learn about diabetic data yang implemented scaling, k-fold-cross-validation

I Make this program to fullfil Introducton to Artificial Intelegence task, and this build without any library related to KNN like sklearn, scikit ,etc so this program will running not efficient and around 9 minutes to get the optimum K and the Average Accuracy in my laptop (HP ENVY 13 2019), and you need to have csv, statistic, and math library to running this.

In this program have 3 different distance calculation you can choose one of them, and 2 scaling methods you can choose one, dan you can set how many iteration you need default i set it on 0-41 (40 Loops) and the dataset used is from Pima India Diabetes Dataset (PIDD)