solved problem33

javaProblems/problem33/Solution.java

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+class Solution {
+    public String solve(int num) {
+        int[] values = {1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1};
+        String[] symbols = {"M", "CM", "D", "CD", "C", "XC", "L", "XL", "X", "IX", "V", "IV", "I"};
+        StringBuilder result = new StringBuilder();
+        int i = 0;
+        while (num > 0) {
+            if (num >= values[i]) {
+                int count = num / values[i];
+                num -= values[i] * count;
+                for (int j = 0; j < count; j++) {
+                    result.append(symbols[i]);
+                }
+            } else {
+                i++;
+            }
+        }
+        return result.toString();
+    }
+}

javaProblems/problem33/Test.java

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+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public class Test {
+    public static void main(String[] args) {
+        Logger logger = Logger.getLogger(Logger.GLOBAL_LOGGER_NAME);
+        Solution solveSolution = new Solution();
+        String ans;
+        try {
+            ans = solveSolution.solve(1994); // Example test case.
+        } catch (Exception e) {
+            logger.log(Level.SEVERE, "Runtime error");
+            System.exit(1);
+            throw new Error("Runtime Error");
+        }
+
+        // Here implement the logic to compare the answer returned with the actual answers.
+        if (!ans.equals("MCMXCIV")) {
+            logger.log(Level.SEVERE, "Wrong solution!");
+            // If the solution is incorrect, exit with status code 1.
+            System.exit(1);
+        }
+        System.out.print("Testcase passed!");
+    }
+}

javaProblems/problem33/readme.md

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+# Integer to Roman
+
+## Problem Statement
+Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M.
+
+Symbol       Value
+I             1
+V             5
+X             10
+L             50
+C             100
+D             500
+M             1000
+For example, 2 is written as II in Roman numeral, just two one's added together. 12 is written as XII, which is simply X + II. The number `27` is written as `XXVII`, which is XX + V + II.
+
+`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:
+
+I can be placed before V (5) and X (10) to make 4 and 9. 
+X can be placed before L (50) and C (100) to make 40 and 90. 
+C can be placed before D (500) and M (1000) to make 400 and 900.
+Given an integer, convert it to a roman numeral.
+
+```
+# Example 1
+
+Input: num = 3
+Output: "III"
+
+
+# Example 2
+
+Input: num = 58
+Output: "LVIII"
+
+```