2629. Function Composition LeetCode Solution

In this guide, you will get 2629. Function Composition LeetCode Solution with the best time and space complexity. The solution to Function Composition problem is provided in various programming languages like C++, Java, and Python. This will be helpful for you if you are preparing for placements, hackathons, interviews, or practice purposes. The solutions provided here are very easy to follow and include detailed explanations.

Table of Contents

1. Problem Statement
2. Complexity Analysis
3. Function Composition solution in C++
4. Function Composition solution in Java
5. Function Composition solution in Python
6. Additional Resources

Problem Statement of Function Composition

Given an array of functions [f1, f2, f3, …, fn], return a new function fn that is the function composition of the array of functions.
The function composition of [f(x), g(x), h(x)] is fn(x) = f(g(h(x))).
The function composition of an empty list of functions is the identity function f(x) = x.
You may assume each function in the array accepts one integer as input and returns one integer as output.

Example 1:

Input: functions = [x => x + 1, x => x * x, x => 2 * x], x = 4
Output: 65
Explanation:
Evaluating from right to left …
Starting with x = 4.
2 * (4) = 8
(8) * (8) = 64
(64) + 1 = 65

Example 2:

Input: functions = [x => 10 * x, x => 10 * x, x => 10 * x], x = 1
Output: 1000
Explanation:
Evaluating from right to left …
10 * (1) = 10
10 * (10) = 100
10 * (100) = 1000

Example 3:

Input: functions = [], x = 42
Output: 42
Explanation:
The composition of zero functions is the identity function

Constraints:

-1000 <= x <= 1000
0 <= functions.length <= 1000
all functions accept and return a single integer

Complexity Analysis

• Time Complexity: Google AdSense
• Space Complexity: Google Analytics

2629. Function Composition LeetCode Solution in C++

type F = (x: number) => number;

function compose(functions: F[]): F {
  return function (x) {
    return functions.reduceRight((val, f) => f(val), x);
  };
}
/* code provided by PROGIEZ */

2629. Function Composition LeetCode Solution in Java

N/A
// code provided by PROGIEZ

2629. Function Composition LeetCode Solution in Python

N/A
 # code by PROGIEZ

Additional Resources

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• Explore all problems on LeetCode website here

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