【Integer转换】Integer to Roman
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Given an integer, convert it to a roman numeral.
Input is guaranteed to be within the range from 1 to 3999.
题意：将整数转换成罗马数字，I，V，X，L，C，D，Mpublic class Solution { public String intToRoman(int v) { boolean flag = false; if(v < 0){ flag = true; v = -v; } String[] symbol = {"M", "CM", "D", "CD", "C", "XC", "L", "XL", "X", "IX", "V", "IV", "I"}; int [] num = {1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1}; StringBuilder sb = new StringBuilder(); for(int i=0; i<symbol.length && v>0; i++){ while(v >= num[i]){ v -= num[i]; sb.append(symbol[i]); } } return sb.toString(); }} 0 0
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