Problem 324. 7 segment LED display

Created by Alan Chalker

Solve Later

Given a whole number, output how many segments would be lit up to display it on a 7 segment LED display (see Wikipedia: http://en.wikipedia.org/wiki/Seven-segment_display)

Examples:

1 -> 2
34 -> 9

Solve

Solution Stats

421 Solutions
175 Solvers

Last Solution submitted on May 22, 2020

Last 200 Solutions

Problem Comments

4 Comments

4 Comments

Show 1 older comment

goc3 on 2 Jan 2018

Additional test cases have been added.

TurqoiseInt on 22 Jan 2018

How to pass test 15, I see only integer converted to float in my function, then back to the int64 is too late, I have lost last digit.

Hannes on 13 Feb 2018

In addition to the remark of TurqoiseInt, y_correct seems to be wrong for test 15. I guess y_correct = 86 assumes x = 12345678987654000.

Sergey Kasyanov on 11 Apr 2018

Test 15 is wrong. True number of segment in number 12345678987654321 is 80. If last digit is losted then true number become 84. In this test correct answer is 86. Maybe it is misprint?

Problem Recent Solvers175

Problem Tags

number representations

Problem 324. 7 segment LED display

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers175

Suggested Problems

More from this Author39

Problem Tags

Problem 324. 7 segment LED display

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers175

Suggested Problems

More from this Author39

Problem Tags

Players