Problem Given a string of digits S, insert a minimum number of opening and closing parentheses into it such that...

## Category: Programming

Problem statement Vestigium means “trace” in Latin. In this problem we work with Latin squares and matrix traces. The trace of...

Problem Statement Given an array with positive numbers and a target number, find all of its contiguous subarrays whose product is...

Problem Statement Given an array arr of unsorted numbers and a target sum, count all triplets in it such that arr+arr+arr...

Problem Statement Given an array of unsorted numbers and a target number, find a triplet in the array whose sum is...