3498. Reverse Degree of a String

Given a string s, calculate its reverse degree.

The reverse degree is calculated as follows:

1. For each character, multiply its position in the reversed alphabet ('a' = 26, 'b' = 25, …, 'z' = 1) with its position in the string (1-indexed).
2. Sum these products for all characters in the string.

Return the reverse degree of s.

func reverseDegree(s string) int {
	res := 0
	for i := 0; i < len(s); i++ {
		res += (i + 1) * (26 - int(s[i]-'a'))
	}
	return res
}