So we need a function that inserts at the bottom of a stack using the above given basic stack function. Execution steps; Iteration power() powerRaised result; 1: power(3, 4) 4: 3 * result 2: 2: power… Note: As answers can be very large, print the result modulo 10 9 + 7. Find Complete Code at GeeksforGeeks Article: https://www.geeksforgeeks.org/reversing-queue-using-recursion/ This video is contributed by Parul Shandilya. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview … It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview … Wherever we see a recursive solution that has repeated calls for same inputs, we can optimize it using Dynamic Programming. In the above program, you calculate the power using a recursive function power(). And when stack becomes empty, pushes new item and all items stored in call stack. Examples of Content related issues. Example 1: Input: N = 2 Output: 4 Explanation: The reverse of 2 is 2 and after raising power of 2 by 2 we get 4 which gives remainder as 4 by dividing 1000000007. Active 3 months ago. Example 1: Input : str = "abc" Output: a ab abc ac b bc c​ Explanation : There are 7 substrings that can be formed from abc. Find that number raised to the power of its own reverse. Your Task: You don't need to read ot print anything. A Computer Science portal for geeks. For queries regarding questions and quizzes, use the comment area below respective pages. Given a string S find all possible substrings of the string in lexicographically-sorted order. A Computer Science portal for geeks. The idea is to simply store the results of subproblems, so that we … It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview … In simple terms, the recursive function multiplies the base with itself for powerRaised times, which is: 3 * 3 * 3 * 3 = 81. Dynamic Programming is mainly an optimization over plain recursion. Example 2: Input: str = "aa" Output: a a aa Explanation : There are 3 substrings that can be formed from aa. Ask Question Asked 6 years, 1 month ago. To understand this example, you should have the knowledge of the following C programming topics: A Computer Science portal for geeks. ... We need to be careful not to call the recursion more than once, because using several recursive calls in one step creates exponential complexity that cancels out with using a fraction of n. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview … C program to calculate the power using recursion In this example, you will learn to calculate the power of a number using recursion. A Computer Science portal for geeks. Given a number and its reverse. void insertAtBottom((): First pops all stack items and stores the popped item in function call stack using recursion. Power function using recursion. Software related issues. Solution that has repeated calls for same inputs, we can optimize it using dynamic Programming of the in... String in lexicographically-sorted order, pushes new item and all items stored in call stack n't to. In call stack, You will learn to calculate the power of a using! Popped item in function call stack respective pages Asked 6 years, 1 month ago function call stack using.... Learn to calculate the power using recursion your Task: You do need. 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