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Stdle #145 · defer · 2026-10-29

What does this Go snippet output?

A past puzzle — fully playable. 4 attempts, hints on wrong guesses.

package main
 
import "fmt"
 
func main() {
	sum := 0
	for i := 1; i <= 3; i++ {
		defer fmt.Print(sum, " ")
		sum += i
	}
	fmt.Println("total", sum)
}
Defer
2 lines
4 attempts left

Answer & explanation