Relative Sorting of Arrays in C++ | Sort A1[] According to A2[]

In this video, learn how to solve the Relative Sorting problem in C++.
You're given two arrays A1[] and A2[], and your task is to sort A1[] such that its elements appear in the same order as in A2[].
Elements not in A2[] are placed at the end in sorted order.

✅ Uses unordered_map and custom comparator
✅ Efficient sorting with STL
✅ Time Complexity: O(N log N)

Perfect for coding interviews and DSA practice.

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Видео Relative Sorting of Arrays in C++ | Sort A1[] According to A2[] канала Coding theory