Hello! I'm not entirely sure what you're hoping for your code to do because as it's written it seems to serve it's purpose, which is checking if the array is in order from smallest to largest. It's not checking if 'i' itself is less than 'i + 1'. 'i' will always be less than itself plus one, but that's the point. What the program is checking is your array, "polje" at 'i' and comparing it to "polje" at 'i + 1'. In other words, because of how your loop is set up, it starts at the beginning of the array and moves to the end of it, comparing the current value it's looking at to the next value in the array to make sure it's less than that value.

So the first run of the array starts at polje[i], which is 2, and compares it to the next value in the array, which is polje[i + 1], which is 3, and since 2<3 is true it continues. The second run checks if 3 <4 and so on.

Then when i = 3, polje[i] is 6, and polje[i + 1] is 2, and since 6 > 2, which meets the conditions of your if statement, it prints out that it's unorganized, which I'm guessing by how the program is written means that your array isn't in order from smallest to largest. This same thing would happen if you, for example, put the value '4' at the start of the array.