LeetCode : Make a Positive Array Solution
Master LeetCode problem (Make a Positive Array), 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.
. Make a Positive Array
Problem Explanation
Explanation:
Given an array of integers, we need to make all elements of the array positive by performing a series of operations. In each operation, we can either increment or decrement an element by 1.
To achieve the goal, we can iterate through the array from left to right and adjust each element to be positive by considering the previous element and performing the necessary operations. The key idea is to minimize the number of operations required to make an element positive while maintaining the relative order of elements in the array.
Time Complexity: O(n), where n is the number of elements in the array. Space Complexity: O(1)
Solution Code
public int[] makePositiveArray(int[] nums) {
int operations = 0;
for (int i = 1; i < nums.length; i++) {
if (nums[i] <= nums[i - 1]) {
operations += nums[i - 1] - nums[i] + 1;
nums[i] = nums[i - 1] + 1;
}
}
return nums;
}Try It Yourself
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