Flip Bits Problem Explanation
Given an array of integers ARR
of size N, consisting of 0s and 1s, you need to select a sub-array and flip its bits. Your task is to return the maximum count of 1s that can be obtained by flipping a chosen sub-array at most once.
Input:
The input consists of a single integer T
(number of test cases). For each test case:
- An integer
N
, representing the size of the array. - An array of
N
space-separated integers representing the elements of the array.
Output:
For each test case, output a single integer representing the maximum number of 1s you can have in the array after performing at most one flip operation.
Example:
Input:
T = 1
N = 5
ARR = [1, 1, 0, 0, 1]
Output:
5
Explanation:
By flipping the sub-array from index 2 to 3, the resulting array becomes [1, 1, 1, 1, 1], which contains five 1s. Hence, the output is 5.
Constraints:
1 <= T <= 100
1 <= N <= 10^4
0 <= ARR[i] <= 1
Note:
You are not required to print anything. Implement the given function to return the answer.
Given an array of 0s and 1s, find the maximum count of 1s by flipping a sub-array at most once.
Iterate through the array and keep track of the maximum count of 1s obtained by flipping a sub-array.
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