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Even Subarray A subarray is a contiguous portion of an array.Given an array of integers,...

Even Subarray A subarray is a contiguous portion of an array. Given an array of integers, determine the number of distinct subarrays that can be formed having at most a given number of odd elements Two subarrays are distinct if they differ at even one position their contents. For example, if numbers [1, 2, 3, 4] and the maximum number of odd elements allowed, k 1, the following is a list of the 8 distinct valid subarrays: [[1], [21, [3], [4], [1,2], [2, 31, [3, 4], [2, :

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Expert Solution

ON 1. def countSubarrays(ar, ment): 2. count=0 3. n=len(a) for m in range(mcnt+1): 5. prefix = [0] *n 6. odd = 0 7. # travers 
def countSubarrays(ar,mcnt): 
    count=0
    n=len(a)
    for m in range(mcnt+1):
        prefix = [0] * n 
        odd = 0
        # traverse in the array 
        for i in range(n): 
            prefix[odd] += 1
            # if array element is odd 
            if (a[i] & 1): 
                odd += 1
            # when number of odd elements>=M 
            if (odd >=m): 
                count += prefix[odd - m] 
    return count 
        
# Driver Code 
a = [1,2,3,4] 
n = len(a) 
m = 1

print(countSubarrays(a,m))

Amanda K answered 2 years ago
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