first

course/7-loops/exercises/2-omit_condition/code.go

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+package main
+
+import (
+	"fmt"
+)
+
+func maxMessages(thresh float64) int {
+	// ?
+}
+
+// don't edit below this line
+
+func test(thresh float64) {
+	fmt.Printf("Threshold: %.2f\n", thresh)
+	max := maxMessages(thresh)
+	fmt.Printf("Maximum messages that can be sent: = %v\n", max)
+	fmt.Println("===============================================================")
+}
+
+func main() {
+	test(10.00)
+	test(20.00)
+	test(30.00)
+	test(40.00)
+	test(50.00)
+}

course/7-loops/exercises/2-omit_condition/complete.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"fmt"
+)
+
+func maxMessages(thresh float64) int {
+	totalCost := 0.0
+	for i := 0; ; i++ {
+		totalCost += 1 + (float64(i) * 0.01)
+		if totalCost > thresh {
+			return i
+		}
+	}
+}
+
+// don't edit below this line
+
+func test(thresh float64) {
+	fmt.Printf("Threshold: %.2f\n", thresh)
+	max := maxMessages(thresh)
+	fmt.Printf("Maximum messages that can be sent: = %v\n", max)
+	fmt.Println("===============================================================")
+}
+
+func main() {
+	test(10.00)
+	test(20.00)
+	test(30.00)
+	test(40.00)
+	test(50.00)
+}

course/7-loops/exercises/2-omit_condition/expected.txt

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+Threshold: 10.00
+Maximum messages that can be sent: = 9
+===============================================================
+Threshold: 20.00
+Maximum messages that can be sent: = 18
+===============================================================
+Threshold: 30.00
+Maximum messages that can be sent: = 26
+===============================================================
+Threshold: 40.00
+Maximum messages that can be sent: = 34
+===============================================================
+Threshold: 50.00
+Maximum messages that can be sent: = 41
+===============================================================

course/7-loops/exercises/2-omit_condition/readme.md

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+# 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.
+
+```go
+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:
+
+* 1st message: `1.0 + 0.00`
+* 2nd message: `1.0 + 0.01`
+* 3rd message: `1.0 + 0.02`
+* 4th message: `1.0 + 0.03`
+
+## Browser freeze
+
+If you lock up your browser by creating an infinite loop that isn't breaking, just click the `cancel` button.