From d0b43d7954c81d9cbdfd07247dcb565bd463837b Mon Sep 17 00:00:00 2001 From: Deven <63876261+devenperez@users.noreply.github.com> Date: Wed, 13 Jul 2022 15:25:25 -0400 Subject: [PATCH] Create README - LeetHub --- 13-roman-to-integer/README.md | 54 +++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 13-roman-to-integer/README.md diff --git a/13-roman-to-integer/README.md b/13-roman-to-integer/README.md new file mode 100644 index 0000000..747f964 --- /dev/null +++ b/13-roman-to-integer/README.md @@ -0,0 +1,54 @@ +

13. Roman to Integer

Easy


Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M.

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Symbol       Value
+I             1
+V             5
+X             10
+L             50
+C             100
+D             500
+M             1000
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For example, 2 is written as II in Roman numeral, just two ones added together. 12 is written as XII, which is simply X + II. The number 27 is written as XXVII, which is XX + V + II.

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Roman numerals are usually written largest to smallest from left to right. However, the numeral for four is not IIII. Instead, the number four is written as IV. Because the one is before the five we subtract it making four. The same principle applies to the number nine, which is written as IX. There are six instances where subtraction is used:

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Given a roman numeral, convert it to an integer.

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Example 1:

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Input: s = "III"
+Output: 3
+Explanation: III = 3.
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Example 2:

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Input: s = "LVIII"
+Output: 58
+Explanation: L = 50, V= 5, III = 3.
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Example 3:

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Input: s = "MCMXCIV"
+Output: 1994
+Explanation: M = 1000, CM = 900, XC = 90 and IV = 4.
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Constraints:

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