Adtrex
diff --git a/‎12. Integer to Roman.js
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Lines changed: 17 additions & 0 deletions
diff --git a/‎13. Roman to Integer.js
Lines changed: 32 additions & 0 deletions b/‎13. Roman to Integer.js
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+var intToRoman = function(num) {
+    let ans = ""
+    // Store all the roman numerals
+    let string = ["M", "CM", "D", "CD", "C", "XC", "L", "XL", "X", "IX", "V", "IV", "I"]
+    // Store all roman numalrs in integers
+    let value = [1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1]
+    for(let i=0; num != 0; i++){
+        // while num is greater then value
+        while(num >= value[i]){
+            // subtract value from num
+            num -= value[i]
+            // add roman string to answer
+            ans += string[i]
+        }
+    }
+    return ans; 
+}
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+var romanToInt = function(s) {
+let ans = 0;
+let [obj1,obj2] = [{"I":2,"X":20},{"I":2,"X":20,"C":200}]
+for(let i = 0 ; i < s.length;i++){
+    if( s[i] == "I" ){ans += 1}
+    if( s[i] == "V" ){
+        ans += 5
+        if( s[i-1] == "I" ) {ans -= 2}
+    }
+    if( s[i] == "X" ){
+        ans += 10
+        if( s[i-1] == "I" ) {ans -= 2}
+    }
+    if( s[i] == "L" ){
+        ans += 50
+        if(obj1[s[i-1]]){ans -= obj1[s[i-1]]}
+    }
+    if( s[i] == "C" ){
+        ans += 100
+        if(obj1[s[i-1]]){ans -= obj1[s[i-1]]}
+    }
+    if( s[i] == "D" ){
+        ans += 500
+        if(obj2[s[i-1]]){ans -= obj2[s[i-1]]}
+    }
+    if( s[i] == "M"){
+        ans += 1000
+        if(obj2[s[i-1]]){ans -= obj2[s[i-1]]}
+    }
+}
+return ans
+};