Dear all, I'm trying to figure about an efficient way to to get the redundant element in my array. For instance, lets take the array [0,2,3,0]. I'd like to get out [2,0,3] (or 3,0,2 it doesn't matter). So it find out which element is duplicated, an puts its value in between the 2 other elements. The size of my initial array is always 4 and the final one always 3. The duplicated element can have any index. It's look very simple, and it certainly is, but I can not figure. Some help would be very helpful. Thanks in advance, Eric.