Clinic #20 - Top K Frequent Elements

Pattern: Freq Map + Heap / Bucket · LC 347

Before you start. Clinic #05 - Two Sum mein tumne dekha tha ki ek hash map kisi cheez ko turant (ek hi kadam mein) yaad rakh sakta hai - yahan wahi table use hogi, bas “dekha hai ya nahi” ki jagah “kitni baar dekha” ginne ke liye. Clinic #19 - Kth Largest Element in an Array mein tumne size-k heap banaya tha jo hamesha sabse chhota element upar rakhta hai - yahan wahi heap lautega, bas uski key ab “kitni baar aaya” hogi.