You are given an integer array nums and an integer k. An integer h is called valid if all values in the array that are strictly greater than h are identical. For example, if nums = [10, 8, 10, 8], a valid integer is h = 9 because all nums[i] > 9 ar

minOperations.js

/**
 * This function calculates the minimum operations required to satisfy certain conditions.
 * @param {number[]} nums - Array of numbers to process.
 * @param {number} k - Threshold value to compare against.
 * @return {number} - Returns the size of the unique set of numbers greater than k, or -1 if any number is less than k.
 */
var minOperations = function (nums, k) {
    // Check if any number in the array is less than k. If so, return -1.
    for (let num of nums) {
        if (num < k) return -1;
    }

    // Create a set to store unique numbers greater than k.
    const uniqueNums = new Set();
    
    // Iterate through the array and add numbers greater than k to the set.
    for (let num of nums) {
        if (num > k) uniqueNums.add(num);
    }

    // Return the size of the set, representing the count of unique numbers greater than k.
    return uniqueNums.size;
};