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3066. Minimum Operations to Exceed Threshold Value II #1309

Answered by mah-shamim
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We need to determine the minimum number of operations required to ensure all elements in a given array are greater than or equal to a specified threshold value k. Each operation involves combining the two smallest elements in the array into a new element using a specific formula and repeating this process until all elements meet the threshold.

Approach

  1. Use a Min-Heap: A min-heap (priority queue) is used to efficiently retrieve the smallest elements from the array. This allows us to repeatedly combine the two smallest elements until all elements meet the threshold.
  2. Combine Elements: In each operation, the two smallest elements are combined using the formula new_val = 2 * x + y (where x and y

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@topugit
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topugit Feb 13, 2025
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@mah-shamim
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mah-shamim Feb 13, 2025
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