How to find the missing element (number) in an Array?

Answer 1

i searched the answer on different references an i got, YOU CAN FIND THE MISSING ELEMENT OF AN ARRAY BY IND THE SUM OF ALL ELEMENTS THEN FIND THE DIFFERENT OF THE SUM YOU GOT WITH AN EXPECTED OUTPUT,

Answer 2

no .. just any number which may be the among of. elements of ana array @liam keegan

Answer 3

but the number is unknown... how can you assume that it is 0 or any other number???

Answer 4

no assumption should be taken into consideration

Answer 5

your welcome Justin

Answer 6

your right Bukuru. I wrote a 4 loop to check it and it works. now I know how to tell what is missing. thanks

numbers=[1,2,4,5,6,7,8,9]

goal=45
total=0

for i in numbers:
total=total+i

print(goal-total)

Python, but proof of concept anyway. (that's what I use python for)

Answer 7

Do you mean a value of zero?

Answer 8

a for loop?

Answer 9

if you're looking for example for 0, loop through the array using enhanced for loop.
This code will return the index of the element that is 0 on the array.

for(int currentNumber : myIntArray){
if(currentNumber == 0){
return currentNumber;
}
}

Answer 10

so I assume you would know which numbers are suppose to be present in the array?

Answer 11

If it's an int array, it only contains numbers. What do you call "missing number"?
If you mean null, just change the code I give you and check if it's null instead of zero.