LeetCode 2769: Find the Maximum Achievable Number Solution

Master LeetCode problem 2769 (Find the Maximum Achievable Number), a easy 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.

2769. Find the Maximum Achievable Number

Easy

Math

Problem Explanation

Explanation:

To find the maximum achievable number, we need to understand that we can increase or decrease a number by 1 while simultaneously increasing or decreasing the target number by 1. The maximum achievable number will be the sum of the original number and the number of operations performed.

Algorithm:

Calculate the difference between the target number num and the original number x.
If the difference is positive, we can perform t operations to increase x and decrease num.
If the difference is negative, we can perform t operations to decrease x and increase num.
The maximum achievable number will be x + t or x - t depending on the sign of the difference.

Time Complexity:

The time complexity of this algorithm is O(1) as it involves simple arithmetic operations.

Space Complexity:

The space complexity of this algorithm is O(1) as we are using only a constant amount of extra space. :

Solution Code

class Solution {
    public int findMaximumAchievableNumber(int num, int t) {
        int diff = num - 1;
        int x = (diff >= 0) ? num + t : num - t;
        return x;
    }
}

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What is the time complexity of LeetCode 2769 (Find the Maximum Achievable Number)?

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