Leetcode | Easy | 13 Roman to Integer | Left-to-Right Pass | Time complexity: O(1) | Javascript

The LeetCode problem 13, "Roman to Integer", is an easy-level algorithmic problem that asks the programmer to write a function that takes a string of Roman numerals as input and returns the corresponding integer value. The problem can be solved using a left-to-right pass algorithm, where each Roman numeral is processed from left to right, and the corresponding integer value is added to a running sum. The problem also specifies that the time complexity of the solution should be O(1), meaning that the algorithm should take a constant amount of time to process any input size. In this case, the solution achieves this time complexity by using a map to store the integer values corresponding to each Roman numeral, allowing for constant-time lookup. The problem is to be solved in JavaScript. .......................................... Solution : https://leetcode.com/problems/roman-to-integer/submissions/938399070