-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathRomanNumeralConverter.js
117 lines (106 loc) · 2.13 KB
/
RomanNumeralConverter.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
// Convert the given number into a roman numeral.
function convertToRoman(num) {
let str ='';
str += num;
let result = [];
let res1 = '';
let res2 = '';
let res3 = '';
let res4 = '';
if (str.length == 0){
result = [];
}else if (str.length > 0){
switch (str[str.length-1]){
case "1" : res1 = "I";
break;
case "2" : res1 = "II";
break;
case "3" : res1 = "III";
break;
case "4" : res1 = "IV";
break;
case "5" : res1 = "V";
break;
case "6" : res1 = "VI";
break;
case "7" : res1 = "VII";
break;
case "8" : res1 = "VIII";
break;
case "9" : res1 = "IX";
break;
}
switch (str[str.length-2]){
case "1" :
res2 = "X";
break;
case "2" :
res2 = "XX";
break;
case "3" :
res2 = "XXX";
break;
case "4" :
res2 = "XL";
break;
case "5" :
res2 = "L";
break;
case "6" :
res2 = "LX";
break;
case "7" :
res2 = "LXX";
break;
case "8" :
res2 = "LXXX";
break;
case "9" :
res2 = "XC";
break;
}
switch (str[str.length-3]){
case "1" :
res3 = "C";
break;
case "2" :
res3 = "CC";
break;
case "3" :
res3 = "CCC";
break;
case "4" :
res3 = "CD";
break;
case "5" :
res3 = "D";
break;
case "6" :
res3 = "DC";
break;
case "7" :
res3 = "DCC";
break;
case "8" :
res3 = "DCCC";
break;
case "9" :
res3 = "CM";
break;
}
switch (str[str.length-4]){
case "1" :
res4 = "M";
break;
case "2" :
res4 = "MM";
break;
case "3" :
res4 = "MMM";
break;
}
}
result.push(res4,res3,res2,res1);
return result.join("");
}
console.log(convertToRoman(39999));