Compare each number with each and tell the differences

Projects Programming
1

Hello everyone,
I just want to compare multiple numbers and print (or do anything else) biggest difference between them.

EXAMPLE:
numbers: 1, 2, 3, 4
output: biggest difference is 3

Thanks in advance for help...

2

Post your best attempt, using code tags as described in the "How to use this forum" post, and explain where you are having difficulty.

3

I know, i can use if and simply compare the numbers but it's too long

if (number1 > number2) {
  compare1 = number1 - number2;
}
if (number2 < number1) {
  compare1 = number2 - number1;
}
if (number1 > number3) {
  compare2 = number1 - number3;
}
if (number1 < number3) {
  compare2 = number3 - number1;
}

Serial.print(max(compare1, compare2));

but i want compare more numbers and the code would be too long, so I ask here, if it can't be easier ...

4

When you see variable names with numeric suffixes, start thinking arrays

5

Find the smallest and largest (or min/max) and then subtract. Is there a known maximum? i.e. The numbers are always less than 10, etc?

Are those numbers in an array? If they are in an array they are easy to read in a loop.

For example

int Smallest = 10;      // Initialize with the highest possible value, or higher.

if(X < Smallest)
   Smallest = X;          // Update if smaller (the 1st value tested should always be smaller)