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  1. package main
  2.  
  3. import (
  4. 	"fmt"
  5. 	"math/rand"
  6. 	"strings"
  7. )
  8.  
  9. var (
  10. 	height int
  11. 	tree   string
  12. 	chars  = []string{"@", "&", "*", "%"}
  13. )
  14.  
  15. func main() {
  16. 	fmt.Scanf("%d", &height)
  17. 	if height < 5 {
  18. 		height = 5
  19. 	}
  20.  
  21. 	for i := 0; i < height; i++ {
  22. 		tree += strings.Repeat(" ", (height-i)) + strings.Repeat(chars[rand.Intn(len(chars))], (i*2)+1) + "\r\n"
  23. 	}
  24. 	fmt.Println(tree)
  25.  
  26. }
  27.  
Success #stdin #stdout 0s 420416KB
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stdout
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     &
    %%%
   %%%%%
  %%%%%%%
 &&&&&&&&&
https://ideone.com/lNHnzZ
language:
Go (go 1.12.1)
created:
11 years ago
visibility:
public

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