Create 3461. Check If Digits Are Equal in String After Operations I

3461. Check If Digits Are Equal in String After Operations I

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+class Solution {
+public:
+    bool hasSameDigits(string s) {
+        int iteration = 0; // Tracks how many layers of reduction have been done
+
+        // Continue reducing until only two digits remain
+        while (s.size() - iteration != 2) {
+            // Replace each character with the sum of adjacent digits (mod 10)
+            for (int i = 0; i < s.size() - 1 - iteration; i++) {
+                s[i] = ((s[i] - '0') + (s[i + 1] - '0')) % 10 + '0';
+            }
+            iteration++;
+        }
+
+        // Return true if the final two digits are equal
+        return s[0] == s[1];
+    }
+};