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Negative To The End

Easy
0/40
Average time to solve is 15m
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4 upvotes
Asked in company
Soft Suave

Problem statement

You are given an array ‘A’ of size ‘N’ consisting of both negative and positive integers. You need to return an array in which all the negative numbers are at the end of the array, but the relative order of positive and negative elements is the same.

Example:
Input: ‘N’ = 6
‘A’ = [-1, 2, -3, 1, 13, -10]

Output: [2, 1, 13, -1, -3, 10]

Explanation: In the output array, all the negative elements come after positive elements, and we can also see that the order of positive elements and negative elements is the same, i.e., 2 comes before 1 and 13 in the final array because in the array ‘A’, 2 comes before 1 and 13, and for all other elements, this condition follows.
Detailed explanation ( Input/output format, Notes, Images )
Constraints:
1 <= T <= 10
1 <= N <= 10^3
-1e9 <= A[i] <= 10^9, A[i] != 0

Time Limit: 1-sec
Sample Input 1:
2
6
-1 2 -3 1 13 -10

4
-1 -1 -2 -3
Sample Output 1:
2 1 13 -1 -3 -10
-1 -1 -2 -3
Explanation Of Sample Input 1:
For test case 1:

Input: ‘N’ = 6
‘A’ = [-1, 2, -3, 1, 13, -10]

Output: [2, 1, 13, -1, -3, 10]

Explanation: In the output array, all the negative elements come after positive elements, and we can also see that the order of positive elements and negative elements is the same, i.e., 2 comes before 1 and 13 in the final array because in the array ‘A’, 2 comes before 1 and 13, and for all other elements, this condition follows.


For test case 2:

Input: ‘N’ = 4
‘A’ = [-1, -1, -2, -3]

Output: [-1, -1, -2, -3]

Explanation: Since there are no positive elements, all negative elements are already at the end of the array, so there’s no need to change array ‘A’.
Sample Input 2:
2
4
1 2 1 3

4
-1 2 3 -4
Sample Output 2:
1 2 1 3
2 3 -1 -4
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