“user3245549” is right: All of the above answers with “for loops” and nested bat files are mumbo jumbo. All you need is to just use “findstr” – example: C:\temp> findstr /S /C:”/work” * | more <– this will find the string “/work” in any file or C:\temp> findstr /S /C:”/work” “*.*” | more or C:\temp> … Read more
Whenever you face a problem like this, try to express the result of the function with the same function. In your case, you can get the result by adding the first number with the result of calling the same function with rest of the elements in the list. For example, listSum([1, 3, 4, 5, 6]) … Read more
functools.cache was newly added in version 3.9. The documentation states: Simple lightweight unbounded function cache. Sometimes called “memoize”. Returns the same as lru_cache(maxsize=None), creating a thin wrapper around a dictionary lookup for the function arguments. Because it never needs to evict old values, this is smaller and faster than lru_cache() with a size limit. Example … Read more
The .find(‘selector’) method is basically a recusive version of .children(), and will find any descendant object that matched the selector, as opposed to .children() which only finds objects in the first level of descendants. 2nd EDIT (I phrased badly the first time, and messed up the code a bit!): Ok, I don’t think this functionality … Read more
A simple self-calling function can do it. function removeMeta(obj) { for(prop in obj) { if (prop === ‘$meta’) delete obj[prop]; else if (typeof obj[prop] === ‘object’) removeMeta(obj[prop]); } } var myObj = { “part_one”: { “name”: “My Name”, “something”: “123”, “$meta”: { “test”: “test123” } }, “part_two”: [ { “name”: “name”, “dob”: “dob”, “$meta”: { … Read more
When x==2 you call fib(1) and fib(0): return fib(2-1)+fib(2-2); Consider what will happen when fib(0) is evaluated…
Taken at face-value, it would certainly seem like RAII works against TCO. However, remember that there are a number of ways in which the compiler can “get away with it”, so to speak. The first and most obvious case is if the destructor is trivial, meaning that it is the default destructor (compiler-generated) and all … Read more
Recursion is not the most idiomatic way to do things in Python, as it doesn’t have tail recursion optimization thus making impractical the use of recursion as a substitute for iteration (even if in your example the function is not tail-recursive, that wouldn’t help anyway). Basically, that means that you shouldn’t use it for things … Read more
That is the signed integer representation of Microsoft’s “stack overflow/stack exhaustion” error code 0xC00000FD. You might try increasing your executable’s stack size as described in the answer here: How to overcome Stack Size issue with Visual Studio (running C codes with big array) Anytime you see strange, large negative exit codes in windows, convert them … Read more
To answer you first question: (defn fib ([n] (fib [0 1] n)) ([x, n] (if (< (count x) n) (fib (conj x (+ (last x) (nth x (- (count x) 2)))) n) x))) This type of function definition is called multi-arity function definition. You can learn more about it here: http://clojure.org/functional_programming As for a better … Read more