HaiBV

function adjacentElementsProduct(inputArray) {
    var arrayLength = inputArray.length;
    var largestProduct = inputArray[0] * inputArray[1];
    for (var i = 1; i < arrayLength - 1; i++) {
        largestProduct = Math.max(largestProduct, inputArray[i] * inputArray[i + 1]); 
    }
    
    return largestProduct;
}

HaiBV

function reverseInParentheses(s) {
    while (true) {
        let c = s.indexOf(")");
        
        if (c === -1) {
            break;
        }
        
        let o = s.substring(0, c).lastIndexOf("(");
        

HaiBV

select 
    case 
        when a + b <= c or a + c <= b or b + c <=a then 'Not A Triangle' 
        when a = b and b = c then 'Equilateral' 
        when a = b or b = c or a = c then 'Isosceles'
        else 'Scalene'
        end as triangle_type 
from TRIANGLES;

HaiBV

set @r1=0, @r2=0, @r3=0, @r4=0;
select min(Doctor), min(Professor), min(Singer), min(Actor)
from(
  select case when Occupation='Doctor' then (@r1:=@r1+1)
            when Occupation='Professor' then (@r2:=@r2+1)
            when Occupation='Singer' then (@r3:=@r3+1)
            when Occupation='Actor' then (@r4:=@r4+1) end as RowNumber,
    case when Occupation='Doctor' then Name end as Doctor,
    case when Occupation='Professor' then Name end as Professor,
    case when Occupation='Singer' then Name end as Singer,

HaiBV

// Singly-linked lists are already defined with this interface:
// function ListNode(x) {
//   this.value = x;
//   this.next = null;
// }
//
function removeKFromList(l, k) {
    var curr;
    
    // remove leading k values with changing l

HaiBV

// Singly-linked lists are already defined with this interface:
// function ListNode(x) {
//   this.value = x;
//   this.next = null;
// }
//
function addTwoHugeNumbers(a, b) {
  var sum = null,
      tmp,
      carry = 0,

HaiBV

function messageFromBinaryCode(code) {
  return code.match(/.{8}/g).reduce((a,b)=>a+String.fromCharCode(parseInt(b,2)),"")
}

HaiBV

$n = 1000000;

$time1 = microtime(true);
$mem1  = memory_get_usage(true);

for ($i = 0; $i < $n; $i++)
{

}
                     

HaiBV

function split(input, len) {
  return input.match(new RegExp('.{1,' + len + '}(?=(.{' + len + '})+(?!.))|.{1,' + len + '}$', 'g'))
}

console.log(split('11010101101', 4)) // ['110', '1010', '1101']
console.log(split('ab22883b0ada0', 2)) // ['a', 'b2', '28', '83', 'b0', 'ad', 'a0']

HaiBV

// without Optional Chaining
function sayHi(user) {
   let name = (user && user.name && user.name.toUpperCase()) || "Unknown";
    console.log(`Hi Mr. ${name}`);
}
sayHi({}); // Hi Mr. Unknown
sayHi(); // Hi Mr. Unknown

// with Optional Chaining
function sayHi(user) {