Check if array is sorted (ascending)?

Short answer: bool IsSorted(int[] arr) { for (int i = 0; i < arr.Length - 1; i++) { if (arr[i] > arr[i + 1]) return false; } return true; }

Example code

bool IsSorted(int[] arr) {
for (int i = 0; i < arr.Length - 1; i++)
{
if (arr[i] > arr[i + 1])
return false;
}
return true;
}

Real-world example (ShopNest)

In coding rounds, state complexity aloud, write a clear ShopNest-flavored example (orders, carts), then handle edge cases (empty list, null, overflow).

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.