Timeline for ATM Console Program
Current License: CC BY-SA 3.0
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 19, 2015 at 0:20 | comment | added | RubberDuck | Yeah @Shadow. I know. I later convinced myself that once you get passed 30, anything that is a multiple of 10 must also either be a multiple of 20 or 50 (possibly both). But it's not an intuitive implementation and I would ask any junior to provide a rigorous mathematical proof of it before letting it into production code. TL;DR: Don't be clever. Do the obvious and simple thing. | |
| Oct 19, 2015 at 0:05 | comment | added | Shadow | @RubberDuck 20 and 50 are both divisible by 10. I check if it is divisible by 10 so if they enter say $25 it will tell them that it is invalid input because there are no $5 notes in the ATM | |
| Oct 18, 2015 at 20:01 | history | tweeted | twitter.com/StackCodeReview/status/655836235605385217 | ||
| Oct 18, 2015 at 15:04 | answer | added | Paritosh | timeline score: 2 | |
| Oct 18, 2015 at 13:55 | answer | added | Fernando Matsumoto | timeline score: 3 | |
| Oct 18, 2015 at 12:43 | comment | added | RubberDuck | Right, but you don't check to see if it's a multiple of 20 or 50, you check to see if it's a multiple of 10. I smell a bug. | |
| Oct 18, 2015 at 12:43 | answer | added | Mast♦ | timeline score: 5 | |
| Oct 18, 2015 at 12:26 | comment | added | Shadow | @Mast where I live you can't withdraw $30 from an ATM because they only stock $20 and $50 notes. Also I could easily add a way to track notes and give appropriate output if there's not enough left in the machine, but the main point I'd like to get feedback on is the algorithm | |
| Oct 18, 2015 at 12:21 | comment | added | Mast♦ | Where does it keep track of the amount of notes still in storage? If it only contains notes of 20 and 50, how do I get $30 from it? The minimum is 20 but 30 is invalid? That seems like an odd design choice. | |
| Oct 18, 2015 at 12:14 | history | edited | Paritosh | CC BY-SA 3.0 |
no need to mention it
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| Oct 18, 2015 at 12:08 | history | asked | Shadow | CC BY-SA 3.0 |