Omitting conditions from a for loop in Go

Loops in Go can omit sections of a for loop. For example, the CONDITION (middle part) can be omitted which causes the loop to run forever.

for INITIAL; ; AFTER {
  // do something forever
}

Assignment

Complete the maxMessages function. Given a cost threshold, it should calculate the maximum number of messages that can be sent.

Each message costs 1.0, plus an additional fee. The fee structure is:

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