Daily programmer #158, in Brainfuck
| first digit | |
| ,------------------------------------------------ | |
| [>++++++++++<-] | |
| second digit | |
| ,------------------------------------------------ | |
| >> | |
| third digit | |
| ,------------------------------------------------ | |
| [>++++++++++<-] | |
| fourth digit | |
| ,------------------------------------------------ | |
| make the first number | |
| << | |
| [>+<-] | |
| make the second number | |
| >> | |
| [>+<-] | |
| add the two numbers into cell 0 | |
| < | |
| [<+>>+<-] | |
| >> | |
| [<<<+>+>>-] | |
| make four copies of cell 0 | |
| <<< | |
| [>>>+>+>+>+<<<<<<-] | |
| square this number | |
| >>>>>- | |
| [ | |
| <[<+>-] | |
| >- | |
| >[<<+>>>+<-] | |
| >[<+>-] | |
| << | |
| ] | |
| make the expected number | |
| <<< | |
| [-<< | |
| ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
| >>] | |
| <[-<+>] | |
| subtract the actual from the expected | |
| <[->>>-<<<] | |
| is the expected nonzero? | |
| >>> | |
| [ | |
| print "n" | |
| <++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
| . | |
| print "o" | |
| + | |
| . | |
| make this print cell negative 1 | |
| [-]- | |
| make it 0 | |
| >[-] | |
| ] | |
| it was zero! | |
| <+[ | |
| print "yes" | |
| ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++. | |
| --------------------. | |
| ++++++++++++++. | |
| [-] | |
| ] |
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