Template Literals.js

"use strict";

process.stdin.resume();
process.stdin.setEncoding("utf-8");

let inputString = "";
let currentLine = 0;

process.stdin.on("data", (inputStdin) => {
  inputString += inputStdin;
});

process.stdin.on("end", (_) => {
  inputString = inputString
    .trim()
    .split("\n")
    .map((string) => {
      return string.trim();
    });

  main();
});

function readLine() {
  return inputString[currentLine++];
}

/*
 * Determine the original side lengths and return an array:
 * - The first element is the length of the shorter side
 * - The second element is the length of the longer side
 *
 * Parameter(s):
 * literals: The tagged template literal's array of strings.
 * expressions: The tagged template literal's array of expression values (i.e., [area, perimeter]).
 */
function sides(literals, ...expressions) {
  // console.log(literals);
  // console.log(expressions);
  let a = expressions[0];
  let p = expressions[1];
  // console.log(a);
  return [
    (p - Math.sqrt(p * p - 16 * a)) / 4,
    (p + Math.sqrt(p * p - 16 * a)) / 4,
  ];
}

function main() {
  let s1 = +readLine();
  let s2 = +readLine();

  [s1, s2] = [s1, s2].sort();

  const [x, y] = sides`The area is: ${s1 * s2}.\nThe perimeter is: ${
    2 * (s1 + s2)
  }.`;

  console.log(s1 === x ? s1 : -1);
  console.log(s2 === y ? s2 : -1);
}