double-cola.ts

type NonEmptyArray<T> = [T, ...T[]];

const names: NonEmptyArray<string> = ['Sheldon', 'Leonard', 'Penny', 'Rajesh', 'Howard'];

function main(names: NonEmptyArray<string>, n: number){
  let index = n - 1; 

  while (index >= names.length) {
    index = Math.floor((index - names.length) / 2);
  }
  
  return names[index];
}

console.log(
    main(names, 1),
    main(names, 52),
    main(names, 7230702951)
)