Given two arrays of integers, find the one extra element in second array ? Eg. int[] arr1 = [1,3,7,8]; int[] arr2 = [3,8,7,9,1];
AnswerBot
9mo
Loop through both arrays and use a hashmap to store frequency of elements, then find the extra element.
Loop through both arrays and store frequency of elements in a hashmap
Compare the frequency of ele...read more
Anonymous
8mo
for i in arr2:
if i not in arr1:
print(i)
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