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  1. package main
  2.  
  3. import (
  4. 	"fmt"
  5. 	"sort"
  6. 	"strconv"
  7. 	"strings"
  8. )
  9.  
  10. type Klasemen struct {
  11. 	poin map[string]int
  12. }
  13.  
  14. func NewKlasemen(clubs []string) *Klasemen {
  15. 	k := &Klasemen{
  16. 		poin: make(map[string]int),
  17. 	}
  18.  
  19. 	for _, club := range clubs {
  20. 		k.poin[club] = 0
  21. 	}
  22.  
  23. 	return k
  24. }
  25.  
  26. func (k *Klasemen) CatatPermainan(kandang, tandang, skor string) {
  27. 	hasil := strings.Split(skor, ":")
  28.  
  29. 	skorKandang, _ := strconv.Atoi(hasil[0])
  30. 	skorTandang, _ := strconv.Atoi(hasil[1])
  31.  
  32. 	if skorKandang > skorTandang {
  33. 		k.poin[kandang] += 3
  34. 	} else if skorKandang < skorTandang {
  35. 		k.poin[tandang] += 3
  36. 	} else {
  37. 		k.poin[kandang]++
  38. 		k.poin[tandang]++
  39. 	}
  40. }
  41.  
  42. func (k *Klasemen) CetakKlasemen() map[string]int {
  43. 	return k.poin
  44. }
  45.  
  46. func (k *Klasemen) AmbilPeringkat(rank int) string {
  47. 	type Club struct {
  48. 		nama string
  49. 		poin int
  50. 	}
  51.  
  52. 	var clubs []Club
  53.  
  54. 	for nama, poin := range k.poin {
  55. 		clubs = append(clubs, Club{nama, poin})
  56. 	}
  57.  
  58. 	sort.Slice(clubs, func(i, j int) bool {
  59. 		if clubs[i].poin == clubs[j].poin {
  60. 			return clubs[i].nama < clubs[j].nama
  61. 		}
  62. 		return clubs[i].poin > clubs[j].poin
  63. 	})
  64.  
  65. 	if rank < 1 || rank > len(clubs) {
  66. 		return ""
  67. 	}
  68.  
  69. 	return clubs[rank-1].nama
  70. }
  71.  
  72. func main() {
  73. 	klasemen := NewKlasemen([]string{"Liverpool", "Chelsea", "Arsenal"})
  74.  
  75. 	klasemen.CatatPermainan("Arsenal", "Liverpool", "2:1")
  76. 	klasemen.CatatPermainan("Arsenal", "Chelsea", "1:1")
  77. 	klasemen.CatatPermainan("Chelsea", "Arsenal", "0:3")
  78. 	klasemen.CatatPermainan("Chelsea", "Liverpool", "3:2")
  79. 	klasemen.CatatPermainan("Liverpool", "Arsenal", "2:2")
  80. 	klasemen.CatatPermainan("Liverpool", "Chelsea", "0:0")
  81.  
  82. 	fmt.Println(klasemen.CetakKlasemen())
  83. 	fmt.Println(klasemen.AmbilPeringkat(1))
  84. 	fmt.Println(klasemen.AmbilPeringkat(2))
  85. }
  86.  
Success #stdin #stdout 0s 5320KB
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map[Arsenal:8 Chelsea:5 Liverpool:2]
Arsenal
Chelsea
https://ideone.com/gqrtE7
language:
Go (go 1.12.1)
created:
11 hours ago
visibility:
public

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