Commit 5593346

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solve: 12. Integer to Roman in rust & golang

Signed-off-by: rajput-hemant <rajput.hemant2001@gmail.com>

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	`1`	`+package main`
	`2`	`+`
	`3`	`+func intToRoman(num int) string {`
	`4`	`+ ones := []string{"", "I", "II", "III", "IV", "V", "VI", "VII", "VIII", "IX"}`
	`5`	`+ tens := []string{"", "X", "XX", "XXX", "XL", "L", "LX", "LXX", "LXXX", "XC"}`
	`6`	`+ hundreds := []string{"", "C", "CC", "CCC", "CD", "D", "DC", "DCC", "DCCC", "CM"}`
	`7`	`+ thousands := []string{"", "M", "MM", "MMM"}`
	`8`	`+`
	`9`	`+ thousand := num / 1000`
	`10`	`+ hundred := (num / 100) % 10`
	`11`	`+ ten := (num / 10) % 10`
	`12`	`+ one := num % 10`
	`13`	`+`
	`14`	`+ return thousands[thousand] + hundreds[hundred] + tens[ten] + ones[one]`
	`15`	`+}`

Lines changed: 18 additions & 0 deletions

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	`1`	`+const ONES: [&str; 10] = ["", "I", "II", "III", "IV", "V", "VI", "VII", "VIII", "IX"];`
	`2`	`+const TENS: [&str; 10] = ["", "X", "XX", "XXX", "XL", "L", "LX", "LXX", "LXXX", "XC"];`
	`3`	`+const HUNDS: [&str; 10] = ["", "C", "CC", "CCC", "CD", "D", "DC", "DCC", "DCCC", "CM"];`
	`4`	`+const THOUSANDS: [&str; 4] = ["", "M", "MM", "MMM"];`
	`5`	`+`
	`6`	`+impl Solution {`
	`7`	`+ pub fn int_to_roman(num: i32) -> String {`
	`8`	`+ let num = num as usize;`
	`9`	`+`
	`10`	`+ format!(`
	`11`	`+ "{}{}{}{}",`
	`12`	`+ THOUSANDS[(num / 1000)],`
	`13`	`+ HUNDS[(num / 100 % 10)],`
	`14`	`+ TENS[(num / 10 % 10)],`
	`15`	`+ ONES[(num % 10)]`
	`16`	`+ )`
	`17`	`+ }`
	`18`	`+}`

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