整数转换英文表示
273. 整数转换英文表示 (Hard)
将非负整数 num
转换为其对应的英文表示。
示例 1:
输入:num = 123 输出:"One Hundred Twenty Three"
示例 2:
输入:num = 12345 输出:"Twelve Thousand Three Hundred Forty Five"
示例 3:
输入:num = 1234567 输出:"One Million Two Hundred Thirty Four Thousand Five Hundred Sixty Seven"
示例 4:
输入:num = 1234567891 输出:"One Billion Two Hundred Thirty Four Million Five Hundred Sixty Seven Thousand Eight Hundred Ninety One"
提示:
0 <= num <= 231 - 1
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