All files / leetCode 0405.ts

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export default function toHex(num: number): string {
  if (num === 0)
    return '0'
 
  let res = ''
 
  while (num !== 0) {
    const cur = num & 0xF
    res = cur.toString(16) + res
    num >>>= 4
  }
 
  return res
}