Given an array nums containing n + 1 integers where each integer is between 1 and n (inclusive), prove that at least one duplicate number must exist. Assume that there is only one duplicate number, ...

The problem of handling duplicate files is not new ... approaches to tackle this problem and each one has its own strength points. In this script, the algorithm used is a simple one: Scan base ...

We do scan the unique items list for each entry in the main list, but even in a worst case this greatly reduces the number of comparisons. Those two examples let us check for duplicates. The improved ...