MostFrequent - JavascriptModule0

// Most Frequent
// Write a program that finds the most frequent number in an array of N elements.

// Input
// On the first line you will receive the number N
// On the next N lines the numbers of the array will be given
// Output
// Print the most frequent number and how many time it is repeated
// Output should be REPEATING_NUMBER (REPEATED_TIMES times)
// Constraints
// 1 <= N <= 1024
// 0 <= each number in the array <= 10000
// There will be only one most frequent number
// Sample tests
// Input Output
// 13
// 4
// 1
// 1
// 4
// 2
// 3
// 4
// 4
// 1
// 2
// 4
// 9
// 3 4 (5 times)
// reference https://www.w3resource.com/javascript-exercises/javascript-array-exercise-8.php
const input = ['13', '4', '1', '1', '4', '2', '3', '4', '4', '1', '2', '4', '9', '3'];
const print = this.print || console.log;
const gets = this.gets || ((arr, index) => () => arr[index++])(input, 0);
const numberOfItems = +gets();
const arrOfItems = [];
let frequentNumber;
let frequency = 0;
let frequentTimes = 1;
for (let i = 0; i < numberOfItems; i++) {
  arrOfItems.push(+gets());
}
for (let i = 0; i < arrOfItems.length; i++) {
  for (let j = i; j < arrOfItems.length; j++) {
    if (arrOfItems[i] === arrOfItems[j]) {
      frequency++;
    }
    if (frequentTimes < frequency) {
      frequentTimes = frequency;
      frequentNumber = arrOfItems[i];
    }
  }
  frequency = 0;
}
print(`${frequentNumber} (${frequentTimes} times)`);