Create 2000. Reverse Prefix of Word (#470)

Author: Chayandas07

2000. Reverse Prefix of Word

@@ -0,0 +1,30 @@
+class Solution {
+public:
+    string reversePrefix(string word, char ch) {
+        string ans;
+
+        // Find the index of the character 'ch' in the word
+        int ind = 0;
+        for(int i = 0; i < word.length(); i++){
+            if(word[i] == ch){
+                ind = i;
+                break;
+            }
+        }
+
+        // Push characters onto a stack until the index 'ind'
+        stack<char> st;
+        for(int i = 0; i <= ind; i++) st.push(word[i]);
+
+        // Pop characters from the stack to reverse the prefix
+        while(!st.empty()){
+            ans += st.top();
+            st.pop();
+        }
+
+        // Append the remaining characters after 'ch'
+        for(int i = ind+1; i < word.length(); i++) ans += word[i];
+
+        return ans;
+    }
+};