Raptor flowchart: random function generates a random array. The size of array elements is in the closed range of 100-999 and the length is 10. Find out the largest element and display its position

Programmers , Please recommend raptor Learning videos or learning approaches , Feeling now raptor There are so few resources ,random Function I don't understand .
Random Function to generate a random array , The array element size is in 100-999 Closed interval , The length is 10
Find the largest element and show its location
The specific content ： Generate random real numbers in 【0-100） Return to one 0～99.999 random number .( Back to this step, I don't quite understand ) The length generated by combining the rounding function is 10 Array of , The element size is 100-999 Closed interval