Leetcode Problem 398. Random Pick Index

398. Random Pick Index

Leetcode Solutions

Initialize a variable count to 0 to keep track of the number of times the target has been seen.
Iterate through the array nums.
For each index i, check if nums[i] is equal to the target.
If it is, increment count.
Generate a random number between 1 and count (inclusive).
If the random number is 1, select the current index i as the potential result.
Continue iterating through the array.
After the loop, return the last selected index.

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