2025-12-05 14:43:44 +01:00

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*createNumbers: -> numbers array gets filled with random entry with only one dublicate
-> check if len is greater than 2
-> create new array numbers, use malloc and check if correct
-> set seed for rand()
-> create new TreeNode root
-> add new value to tree using addToTree and rand()
-> addToTree sets isDup to 1, if value already exists
-> if value does not already exist -> add to numbers[]
-> stops at numbers[len -2]
static dublicateRandomEntry:
-> numbers[len-1] is filled with random already existing number
-> numbers[len -1] gets switched with other random entry -> dublicate is placed randwom in entry; without the switch, dublicate would always be at the end
getDublicate:
-> numbers (Zeiger != NULL) und len (min. 2) check
-> define new array numbersCopy
-> copy numbers to numbersCopy
-> simple loop to copy each element from numbers to numbersCopy
-> sort numbersCopy with qsort
-> compare each element of numbersCopy with next element (if numbersCopy[i] == numbersCopy[i+1] -> dublicate was found, because same values are right next to each other)
-> return found dublicate
compare:
-> gibt 1 aus, wenn a größer ist
-> gibt -1 aus, wenn b größer ist
-> gibt 0 aus wenn a==b