Array Hash Map Counting Intermediate Implement the method countPairsWithSum that counts index pairs whose values add up to a target. Solved
Array Math Learner Implement the method productSign that returns the sign of the product of an integer array. Solved
Array Sorting Binary Search Learner Implement the method firstOccurrence that returns the first index of a target value in a sorted array. Solved
Loop Array Counting Beginner Implement the method countEvenNumbers that returns how many even numbers are in an array. Solved
Loop Array Linear Search Learner Implement the method findSecondLargest that returns the second largest distinct integer in an array. Solved
Array Linear Search Learner Implement the method findMax that takes an array of integers and returns the largest (maximum) value in the array. Solved
Loop Array Math Learner Implement the method sumArray that calculates and returns the sum of all integers in an input array. Solved