Timeline for Write a program that makes 2 + 2 = 5
Current License: CC BY-SA 3.0
11 events
| when toggle format | what | by | license | comment | |
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| Jun 5, 2014 at 20:32 | comment | added | Felipe | Nice! But I prefer my solution because it is really confusing: (+ 1 2) => 3; (+ 2 3) => 5; (+ 2 2 2) => 6 ; (+ 2 2) => 5 | |
| Jun 5, 2014 at 12:04 | comment | added | Nick Russell |
@FelipeMicaroniLalli MIT-Scheme. (1+ x) => (+ x 1); (-1+ x) => (- x 1). You could replace mine with (define + (lambda (a b) (abs (- (- (- a) b) 1))))
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| Jun 4, 2014 at 19:39 | comment | added | Felipe | @Nick Russell, wth is -1+ ? :) I tried it on SISC and got this error: Error: undefined variable '|-1+|'. | |
| Jun 4, 2014 at 8:36 | comment | added | Hauleth | @FelipeMicaroniLalli that adnotation was made after my answer so it doesn't count. | |
| Jun 2, 2014 at 10:29 | comment | added | Nick Russell |
Mine: (define + (lambda (a b) (abs (-1+ (- (- a) b)))))) (+ 2 2) => 5 (+ 3 4) => 8
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| Jun 2, 2014 at 4:42 | comment | added | Felipe | "Redefining 2+2 as 5 is not very creative! Don't doublethink it, try something else." --- Well, in R5RS I can redefine + instead 2+2 or 2. The answer is here: pastebin.com/KHtm9Jmv | |
| May 31, 2014 at 4:00 | comment | added | undergroundmonorail |
@JanDvorak I've never used lisp, but as I understand it it's something like ((((2))(()()))()()(()((((+))))()(((()(())((((2)))))()))(()))).
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| May 31, 2014 at 3:16 | comment | added | Cole Tobin | @JanDvorak Clearly, you're wrong then | |
| May 30, 2014 at 18:33 | comment | added | Hauleth | So what? It seemingly add 2 to 2 as is in the task. | |
| May 30, 2014 at 17:54 | comment | added | John Dvorak |
hey! 2+2 isn't how you do addition in lisp!
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| May 30, 2014 at 17:50 | history | answered | Hauleth | CC BY-SA 3.0 |