We value your feedback.
Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!
Given a non-negative int n, return the count of the occurrences of 7 as a digit, so for example 717 yields 2. (no loops). Note that mod (%) by 10 yields the rightmost digit (126 % 10 is 6), while divide (/) by 10 removes the rightmost digit (126 / 10 is 12).
count7(717) → 2
count7(7) → 1
count7(123) → 0
Add your voice to the tech community where 5M+ people just like you are talking about what matters.
|convert Systemjs to Webpack||3||130|
|Using jdbcTemplate.batchUpdate to improve INSERT performance||6||35|
|batch file or script||4||66|
|VB.Net Outlook.ReportItem Body Text convert to Readable Characters||5||38|
Join the community of 500,000 technology professionals and ask your questions.