freeCodeCamp/Data Structures/heapInsert.js

29 lines
770 B
JavaScript
Raw Permalink Normal View History

// https://www.freecodecamp.org/learn/coding-interview-prep/data-structures/insert-an-element-into-a-max-heap
var MaxHeap = function () {
// Only change code below this line
this.heap = [];
this.insert = (item) => {
this.heap.push(item);
let me = this.heap.length - 1;
let parent = Math.trunc((me - 1) / 2);
while (parent != me && this.heap[parent] < this.heap[me]) {
const tmp = this.heap[parent];
this.heap[parent] = this.heap[me];
this.heap[me] = tmp;
me = parent;
parent = Math.trunc((me - 1) / 2);
}
};
this.print = () => this.heap;
// Only change code above this line
};
const h = new MaxHeap();
for (let i = 0; i < 10; i++) {
h.insert(Math.trunc(Math.random() * 100));
}
console.log(h.print());