package util

import "errors"

var ErrRandomWeightsIsEmpty = errors.New("weights is empty")

var ErrRandomTotalWeightsIsZero = errors.New("total weights is 0")

var ErrRandomRawRatesIsEmpty = errors.New("raw randomRates is empty")

var ErrRandomCandidateIsEmpty = errors.New("candidate is empty")

var ErrRandomNotHit = errors.New("not hit")

var ErrRandomInvalidRate = errors.New("invalid rate, must > 0 and <= 1")