Convert a list of strings to integers with map

Summary

Convert a list of numeric strings into integers using the map function.

Problem statement

Write a function strings_to_ints(lst) that takes a list of strings, where each string represents an integer (possibly with leading/trailing whitespace or a sign), and returns a new list of integers corresponding to those string values. Implement the conversion using map (or an equivalent functional approach). You may assume each string is a valid integer representation.

Task

Use map to transform each string element in a list to an integer, handling common numeric string formats.

Examples

Input format

A list of strings, e.g. ['1', ' -2', '03'].

Output format

A list of integers, e.g. [1, -2, 3].

Constraints

All list elements are valid integer strings (may include whitespace and sign). Use map for the conversion. The input list length will be between 0 and 1000.

Samples