upd

9. Palindrome Number/solution.cpp

@@ -0,0 +1,27 @@
+#include <algorithm>
+#include <iostream>
+#include <string>
+
+
+class Solution {
+public:
+    bool isPalindrome(int x) {
+      std::string s = std::to_string(x);
+      std::string reversed_s = s;
+
+      std::reverse(reversed_s.begin(), reversed_s.end());
+
+      return s == reversed_s;
+    }
+};
+
+int main (int argc, char *argv[]) {
+  Solution s;
+  int test[] = {121, -121, 10};
+
+  for (int t : test) {
+    std::cout << "isPalindrome(" << t << ") = " << s.isPalindrome(t) << std::endl;
+  }
+
+  return 0;
+}