HackerRank-Parse-Input

parseHackerRank.js

/*
HackerRank standardizes its input stream for many of its challenges.  

This function can be optimized to account for different input types.
Simply change variable names etc.
*/

function parseInputs(input) {
  const inputs = input.split('\n');
  const testCases = Number(inputs[0]);
  const nodes = [];
  const queries = [];

  let history = 1;
  for (let i = 0; i < testCases; i++) {
    let newNodesLength = Number(inputs[history]);
    let newNodes = [];
    for (let j = 0; j < newNodesLength; j++) {
      history += 1;

      newNodes.push(inputs[history]);
    }
    nodes.push(newNodes);
    history += 1;

    let newQueriesLength = Number(inputs[history]);
    let newQueries = [];
    for (let k = 0; k < newQueriesLength; k++) {
      history += 1;

      newQueries.push(inputs[history]);
    }
    queries.push(newQueries);
    history += 1;
  }

  return ({
    testCases,
    nodes,
    queries,
  });
}