Leetcode day 2 and 3

2026-05-16 19:35:22 +00:00 · 2026-01-29 01:04:37 +05:30
parent 245116d181
commit 2ee49ea476
15 changed files with 204 additions and 1 deletions
@@ -0,0 +1,17 @@
+class Solution{
+    public: 
+        int romanToInt(string s){
+            unordered_map<char,int> convert = {{'I',1},{'V',5},{'X',10},{'L',50},{'C',100},{'D',500},{'M',1000}};
+            int result = 0;
+            for(int i=0;i<s.size();++i){
+                int curr = convert[s[i]];
+                int next = ((i+1) < s.size())? convert[s[i+1]] : 0;
+                if(curr<next){
+                    result-=curr;
+                }else{
+                    result+=curr;
+                }
+            }
+            return result;
+        }
+};