How do you find negative values in an array?
Approach:
- Traverse the elements in the array one by one.
- For each element, check if the element is less than 0. If it is, then increment the count of negative elements.
- For each element, check if the element is greater than 0.
- Print the count of negative and positive elements.
How do I sort an array from a specific index?
sort(long[], int, int) method sorts the specified range of the specified array of longs into ascending numerical order. The range to be sorted extends from index fromIndex, inclusive, to index toIndex, exclusive.
Which is the correct way to rearrange an array?
Rearrange the array such that it contains positive and negative numbers at alternate positions. Given an array of integers, rearrange the array such that it contains positive and negative numbers at alternate positions. If array contains more positive or negative elements, they should be moved to end of the array.
How to arrange an array in alternating positive and negative order?
First, sort the array in non-increasing order. Then we will count the number of positive and negative integers. Then swap the one negative and one positive number in the odd positions till we reach our condition.
How to rearrange positive and negative elements at alternate positions?
Naive Solution: Take the extra space of O (n), do the linear scan twice and fill the positive and negative elements at alternate positions. But the problem becomes interesting when you have asked not to use any extra space, ask to solve in O (1).
How to make an array contain all positive integers?
The resultant array will contain all positive integers to the end of the array and all negative integers at the beginning. Then swap alternate negative elements from the next available positive element until the end of the array is reached, or all negative or positive integers are exhausted.