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Problem 45

Description

This problem was asked by Two Sigma.

Using a function rand5() that returns an integer from 1 to 5 (inclusive) with uniform probability, implement a function rand7() that returns an integer from 1 to 7 (inclusive).

Kotlin Solutions

假設題目是

class Solution : SolBase() {
    fun rand7(): Int {
    }
}

參考解法