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整数转罗马数字

This commit is contained in:
Zerroi 2024-03-03 19:33:29 +08:00
parent 738bbcc67d
commit a3219c2c0b
1 changed files with 12 additions and 1 deletions
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11
ThreeAndThree.java
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@ -4,6 +4,17 @@ public class ThreeAndThree {
class Solution { class Solution {
public String intToRoman(int num) { public String intToRoman(int num) {
String[] a1 = new String[] { "I", "IV", "V", "IX", "X", "XL", "L", "XC", "C", "CD", "D", "CM", "M" };
int[] a2 = new int[]{1, 4, 5, 9, 10, 40, 50, 90, 100, 400, 500, 900, 1000};
StringBuilder builder = new StringBuilder();
for (int i = a1.length-1; i >=0; i--) {
while (num >= a2[i]) {
builder.append(a1[i]);
num -= a2[i];
}
}
return builder.toString();
} }
} }