LeetCode 1785: Minimum Elements to Add to Form a Given Sum Solution
Master LeetCode problem 1785 (Minimum Elements to Add to Form a Given Sum), a medium challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.
Problem Explanation
Explanation:
To solve this problem, we can iterate through the array and calculate the total sum of the array. Then, we can find the difference between the goal and the sum of the array. Next, we calculate the number of elements needed to add to reach the goal by dividing the absolute difference by the limit and rounding it up to the nearest integer.
Algorithmic Idea:
- Calculate the sum of the array.
- Find the absolute difference between the goal and the sum of the array.
- Calculate the number of elements needed to add by dividing the absolute difference by the limit and rounding it up.
- Return the number of elements needed.
Time Complexity:
The time complexity of this solution is O(n), where n is the number of elements in the input array nums.
Space Complexity:
The space complexity of this solution is O(1) as we are using only a few extra variables to store intermediate results.
: :
Solution Code
class Solution {
public int minElements(int[] nums, int limit, int goal) {
long sum = 0;
for (int num : nums) {
sum += num;
}
long diff = Math.abs((long) goal - sum);
return (int) ((diff + limit - 1) / limit);
}
}Try It Yourself
Loading code editor...
Related LeetCode Problems
Frequently Asked Questions
How to solve LeetCode 1785 (Minimum Elements to Add to Form a Given Sum)?
This page provides optimized solutions for LeetCode problem 1785 (Minimum Elements to Add to Form a Given Sum) in Java, C++, and Python, along with a detailed explanation and an interactive code editor to test your code.
What is the time complexity of LeetCode 1785 (Minimum Elements to Add to Form a Given Sum)?
The time complexity for LeetCode 1785 (Minimum Elements to Add to Form a Given Sum) varies by solution. Check the detailed explanation section for specific complexities in Java, C++, and Python implementations.
Can I run code for LeetCode 1785 on DevExCode?
Yes, DevExCode provides an interactive code editor where you can write, test, and run your code for LeetCode 1785 in Java, C++, or Python.