Create Reversing the equation.cpp

Author: Utkarssh11

Reversing the equation.cpp

@@ -0,0 +1,21 @@
+GFG
+Reversing the equation
+
+class Solution {
+public:
+    string reverseEqn(string s) {
+        string reversed;
+        int equationStart = s.length() - 1;
+
+        for (int i = s.length() - 1; i >= 0; i--) {
+            if (s[i] == '+' || s[i] == '-' || s[i] == '*' || s[i] == '/') {
+                reversed += s.substr(i + 1, equationStart - i) + s[i];
+                equationStart = i - 1;
+            }
+        }
+
+        reversed += s.substr(0, equationStart + 1);
+
+        return reversed;
+    }
+};