it is exactly like you said: 5*factorial(4)=5*4*factorial(3)=5*4*3*factorial(2)=5*4*3*2*factorial(1) So if it reaches 1 then this will be replaced by 5*factorial(4)=5*4*factorial(3)=5*4*3*factorial(2)=5*4*3*2*1 so the result of the last step goes into the second last step…. where 2*1 will be calculated… After that the 3rd last step gets the value of 2*1 = 2 and multiplies 3 on in … Read more
Since it’s recursive and the recursive call comes before your printline, it will recursively call itself over and over until it reaches the base case. Only first after the recursive calls have ended will your print be allowed to execute. Something like this Do something first recursive call Do something second recursive call Do something … Read more
One way to think about recursion is to try and solve only a small piece of the problem, and then imagine that recursive call ‘magically’ solves the rest of the problem. Importantly, you have to consider what happens when the rest of the problem is trivial to solve; this is called the base case. In … Read more
Recursion : method which takes a string, and for each repeating sequence of characters in the string, removes all but one of them solved Recursion : method which takes a string, and for each repeating sequence of characters in the string, removes all but one of them
Recursive java program doesn’t return any value. Putting a print statement right before the return statements prints infinite values solved Recursive java program doesn’t return any value. Putting a print statement right before the return statements prints infinite values
// $type could be code or name function check_in_array($arr, $value, $type = “code”) { return count(array_filter($arr, function($var) use ($type, $value) { return $var[$type] === $value; })) !== 0; } 4 solved Check If In_Array (in Recursive Associative Array)
Consider this simple function: function enumerate(x, fn) { if (x && typeof x === ‘object’) { for (let val of Object.values(x)) { fn(val); enumerate(val, fn); } } } It walks through a nested object structure and invokes the given callback for each value it finds (no matter object or primitive). You can apply it to … Read more
This is almost the same as BLUEPIXY‘s answer since I believe it’s the straight forward solution, but since you are confused by the function pointer, I removed that. #include <stdio.h> #include <stdlib.h> void printValue() { static unsigned int y; printf(“%d\n”, y); y += 1; } void recursiveFunction(int counter) { printValue(); if (–counter == 0) return; … Read more
The list comprehension at the heart of this function is building up an implicit list that ultimately gets returned. We can unwind the function, remove the comprehension, and use an explicit list: def combine(n, k): “”” Given two integers n and k, return all possible combinations of k numbers out of 1 … n. “”” … Read more
I pasted your code on https://tio.run/#c-gcc, and here’s the result: main prototype .code.tio.c:3:7: warning: ‘main’ takes only zero or two arguments [-Wmain] int main(int fib) { ^~~~ the main function prototype is int main(void) or int main(int argc, char *argv[]) Since you want user to input a number, you can choose the first form. count … Read more
Recall that the static variable is shared between all calls to main. Then consider the code as it is executed recursively: int main() { static int i = 5; // 5 if (–i) { // 4 main() { if (–i) { // 3 main() { if (–i) { // 2 main() { if (–i) { … Read more
When you call a function recursively, they add the new function to a stack until have a final result (return). When it occurs, you go back return by return in the stack. An Execution example: First Round wacky(4, 6): 4 <= 1? No, so call wacky(4 – 1, 6 – 1) Second Round wacky(3, 5): … Read more
def veggie_r_ip(foods, curIndex): if(curIndex >= len(foods)): return curFood = foods[curIndex] is_veggie = curFood.split(‘|’)[2] if is_veggie == “False”: foods.remove(curFood) veggie_r_ip(foods, curIndex) else: veggie_r_ip(foods, curIndex + 1) def main(): foods =[‘Spicy Vegetable Moo Shu|1|True|140’, ‘BBQ Pork|1|False|920’, ‘Chicken Breast|1|False|920’, ‘Salad|1|True|920’] veggie_r_ip(foods, 0) print foods 1 solved Removes non-vegetarian foods from a list of foods. [closed]
You are recursing and you shouldn’t be using this form of nested setInterval. Doing this, will cause an explosion of interval instances. Instead of using setInterval, schedule additional requests using setTimeout. setInterval will fire and continue firing every interval until you tell it to stop. setTimeout will fire once. Let’s consider the following code which … Read more