[LintCode] The Number In Words

姘存按发布于2019-08-16 12:40 / 1194人阅读

Problem

Given a non-negative integer n, print the number in words.

Example

Given n = 125

Return one hundred twenty five

Solution

class Solution {
    private String[] belowTen = new String[] {"", "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine"};
    private String[] tenToTwenty = new String[] {"Ten", "Eleven", "Twelve", "Thirteen", "Fourteen", "Fifteen", "Sixteen", "Seventeen", "Eighteen", "Nineteen"};
    private String[] tens = new String[] {"", "Ten", "Twenty", "Thirty", "Forty", "Fifty", "Sixty", "Seventy", "Eighty", "Ninety"};
    
    public String convertWords(int num) {
        if (num == 0) return "zero";
        return helper(num);
    }
    
    private String helper(int num) {
        String result;
        if (num < 10) result = belowTen[num];
        else if (num < 20) result = tenToTwenty[num-10];
        else if (num < 100) result = tens[num/10] + " " + belowTen[num%10];
        else if (num < 1000) result = belowTen[num/100] + " Hundred " + helper(num%100);
        else if (num < 10000) result = belowTen[num/1000] + " Thousand " + helper(num%1000);
        else if (num < 1000000) result = helper(num/1000) + " Thousand " + helper(num%1000);
        else if (num < 1000000000) result = helper(num/1000000) + " Million " + helper(num%1000000);
        else result = helper(num/1000000000) + " Billion " + helper(num%1000000000);
        return result.trim().toLowerCase();
    }
}

云服务器 GPU云服务器 Words LintCode the Aspose.Words

文章版权归作者所有，未经允许请勿转载,若此文章存在违规行为，您可以联系管理员删除。

转载请注明本文地址：https://www.ucloud.cn/yun/71520.html

[LeetCode/LintCode] Top K Frequent Words

LeetCode version Problem Given a non-empty list of words, return the k most frequent elements. Your answer should be sorted by frequency from highest to lowest. If two words have the same frequency, t...

0x584a 2019-08-15 13:32 评论0 收藏0
[LeetCode/LintCode] Sentence Similarity

Problem Given two sentences words1, words2 (each represented as an array of strings), and a list of similar word pairs pairs, determine if two sentences are similar. For example, great acting skills a...

dreamtecher 2019-08-16 12:44 评论0 收藏0
[LintCode] Longest Words

Problem Given a dictionary, find all of the longest words in the dictionary. Example Given { dog, google, facebook, internationalization, blabla } the longest words are(is) [internationaliz...

roadtogeek 2019-08-14 15:15 评论0 收藏0
[LintCode] Implement Trie

Problem Implement a trie with insert, search, and startsWith methods. Example insert(lintcode) search(code) // return false startsWith(lint) // return true startsWith(linterror) // return false insert...

chengjianhua 2019-08-14 15:15 评论0 收藏0
[LeetCode/LintCode] Word Ladder

摘要：使用，利用其按层次操作的性质，可以得到最优解。这样可以保证这一层被完全遍历。每次循环取出的元素存为新的字符串。一旦找到和相同的字符串，就返回转换序列长度操作层数，即。 Problem Given two words (start and end), and a dictionary, find the length of shortest transformation sequence...

张金宝 2019-08-14 15:27 评论0 收藏0