Add Leetcode - Minimum Operations to Transform String

[ChocolateLoverRaj]

No description provided.

[jusexton]

Great solution; although there is a lot of math acrobatics and casting being done to calculate the distance from 'a' for each character. It also takes a bit of thinking to realize that is what the closure is doing, even with a simplified formula. In these logic/math heavy closures I love giving them a name for the extra readability.

What do you think of something like the below?

pub fn min_operations(s: String) -> i32 {
    let distance_from_a = |c| (26 - (c as i32 - 97)) % 26;
    s.chars().map(distance_from_a).max().unwrap()
}