Created
March 17, 2020 10:37
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Number to words
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public static string NumberToWords(int number) | |
{ | |
if (number == 0) | |
return "zero"; | |
if (number < 0) | |
return "minus " + NumberToWords(Math.Abs(number)); | |
string words = ""; | |
if ((number / 1000000) > 0) | |
{ | |
words += NumberToWords(number / 1000000) + " million "; | |
number %= 1000000; | |
} | |
if ((number / 1000) > 0) | |
{ | |
words += NumberToWords(number / 1000) + " thousand "; | |
number %= 1000; | |
} | |
if ((number / 100) > 0) | |
{ | |
words += NumberToWords(number / 100) + " hundred "; | |
number %= 100; | |
} | |
if (number > 0) | |
{ | |
if (words != "") | |
words += "and "; | |
var unitsMap = new[] { "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen" }; | |
var tensMap = new[] { "zero", "ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety" }; | |
if (number < 20) | |
words += unitsMap[number]; | |
else | |
{ | |
words += tensMap[number / 10]; | |
if ((number % 10) > 0) | |
words += "-" + unitsMap[number % 10]; | |
} | |
} | |
return words; | |
} |
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