From b0ddcd80d834ca774686d0d7a34ec8d0c96f2d19 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=9C=D0=BE=D1=80=D0=B5=D0=B2=20=D0=90=D0=BB=D0=B5=D0=BA?=
 =?UTF-8?q?=D1=81=D0=B0=D0=BD=D0=B4=D1=80?= <hikjik@yandex.ru>
Date: Mon, 25 Sep 2023 08:29:12 +0300
Subject: [PATCH] Update Find the Difference

---
 solutions/find-the-difference/solution.hpp | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/solutions/find-the-difference/solution.hpp b/solutions/find-the-difference/solution.hpp
index ed65f306..9fa81029 100644
--- a/solutions/find-the-difference/solution.hpp
+++ b/solutions/find-the-difference/solution.hpp
@@ -1,21 +1,12 @@
 #pragma once
 
+#include <numeric>
 #include <string>
-#include <unordered_map>
 
 class Solution {
 public:
   static char findTheDifference(std::string s, std::string t) {
-    std::unordered_map<char, int> umap;
-    for (auto c : s) {
-      umap[c]++;
-    }
-
-    for (auto c : t) {
-      if (!umap[c]--) {
-        return c;
-      }
-    }
-    return '0';
+    return std::accumulate(t.begin(), t.end(), 0) -
+           std::accumulate(s.begin(), s.end(), 0);
   }
-};
\ No newline at end of file
+};