Number Of Triplets In Array. The solution uses the combinations function from Python's itertool

The solution uses the combinations function from Python's itertools to generate all possible triplets of three elements from the array, then checks each triplet to see if the differences between consecutive elements equal diff. Can you solve this real interview question? 3Sum - Given an integer array nums, return all the triplets [nums[i], nums[j], nums[k]] such that i != j, i != k, and j . The sum function counts how many triplets satisfy the conditions. In other words, if we consider pos1v as the index of the value v in nums1 and Aug 27, 2024 · I'm working on a problem where I need to preprocess an array to determine the number of divisors for each element, resulting in an array $f$. Jul 23, 2025 · Given a sorted array arr [] and a target value, the task is to find the count of triplets present in the given array having sum equal to the given target. Feb 3, 2014 · Since there are possibly O (n^3) such triplets, the complexity cannot be O (n). For example, Mar 27, 2024 · Algorithm A function “countTriplets” is initialized that takes an array “arr” and “n” which is the length of the array and counts the number of triplets such that one number is the sum of the other two. A triplet (arr[i], arr[j], arr[k May 11, 2024 · Approach: For a number d to divide the sum of a triplet, the sum of their remainders (mod d) must also be divisible by d. Divide and Conquer (Merge Sort) The first idea is that we pick a number as the middle number in the triplet, and count the common numbers in front of this number and after this number. Number of Unequal Triplets in Array coding interview question from Google.

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