maximum-69-number

Maximum 69 Number

java

python

python3

mysql

mssql

oraclesql

csharp

javascript

ruby

bash

swift

golang

scala

html

pythonml

kotlin

rust

typescript

racket

erlang

elixir

dart

maximum69Number 

You are given a positive integer <code>num</code> consisting only of digits <code>6</code> and <code>9</code>.

Return the maximum number you can get by changing at most one digit (<code>6</code> becomes <code>9</code>, and <code>9</code> becomes <code>6</code>).

&nbsp;
Example 1:

<pre>
Input: num = 9669
Output: 9969
Explanation: 
Changing the first digit results in 6669.
Changing the second digit results in 9969.
Changing the third digit results in 9699.
Changing the fourth digit results in 9666.
The maximum number is 9969.
</pre>

Example 2:

<pre>
Input: num = 9996
Output: 9999
Explanation: Changing the last digit 6 to 9 results in the maximum number.
</pre>

Example 3:

<pre>
Input: num = 9999
Output: 9999
Explanation: It is better not to apply any change.
</pre>

&nbsp;
Constraints:

<ul>
	<li><code>1 &lt;= num &lt;= 104</code></li>
	<li><code>num</code>&nbsp;consists of only <code>6</code> and <code>9</code> digits.</li>
</ul>

Math

Greedy

Accenture

Accolite

Activision

Adobe

Aetion

Affinity

Affirm

Airbnb

Airtel

Akamai

Akuna Capital

Alation

Alibaba

AllinCall

alphonso

Altimetrik

Amazon

American Express

Analytics quotient

AppDynamics

Apple

AQR Capital Management LLC

Arcesium

Arista Networks

Asana

Ascend

Athenahealth

Atlassian

Audible

Avalara

Baidu

Barclays

BitGo

BlackRock

Blizzard

Bloomberg

Bolt

Booking.com

Bridgewater Associates

ByteDance

C3 IoT

Canonical

Capgemini

Capital One

Cashfree

Cisco

Citadel

Citrix

Clari

Cloudera

Code Studio

codeagon

Codenation

CoderByte

Cognizant

Cohesity

Coinbase

Commvault

Coupang

Coursera

Cruise Automation

Cryptic Studios

DailyHunt

Databricks

Dataminr

DE Shaw

Dell

Deloitte

Deutsche Bank

DiDi

Directi

Discord

Docusign

DoorDash

Drawbridge

Dropbox

Dunzo

Duolingo

eBay

edabit

Electronic Arts

Epam Systems

Epic Systems

epiFi

Evernote

Expedia

Facebook

FactSet

Fallible

Fleetx

Flipkart

ForUsAll

fourkites

Garena

GE Digital

GE Healthcare

Online Assessment

Phone Interview

On Campus Interview

Onsite Interview

Don't know

last week

last month

last 3 months

last 6 months

more than 6 months

other