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How would I check an array in C to see if the array is unique?
Unique meaning the array values are all different.
Thanks.
You need to know the size of the array.
Then create a variable that will say if it is unique or not, usually a boolean works, but you may not have a boolean in your C, so you could use an int variable that sets it to 0 for false and 1 for true.
Then you need a for loop to go over the array. Then another for loop to go over the array again, checking if any of the elements are the same.
Something like this:
int isSame = 0;
for (int i = 0; i <
{
for (int j = 0; j <
if (i != j)
{
if (the array[i] == the array[j])
{
isSame = 1;
}
}
}
}
Then check if isSame is 0 or 1. If it is 0, it is unique.
if (isSame == 1)
{
// not unique.
}
else
{
// is unique.
}
You may want to display a message if it is unique, or return a value, or something, so I will leave that for you to do.
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