From 7881119e0914b9207568918fcf868eea84ef3d78 Mon Sep 17 00:00:00 2001
From: Angeld55 <angel_dimitriev@abv.bg>
Date: Sat, 28 Nov 2020 01:45:44 +0200
Subject: sem 8

---
 Sem. 08/task2.cpp | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 Sem. 08/task2.cpp

(limited to 'Sem. 08/task2.cpp')

diff --git a/Sem. 08/task2.cpp b/Sem. 08/task2.cpp
new file mode 100644
index 0000000..beb700d
--- /dev/null
+++ b/Sem. 08/task2.cpp	
@@ -0,0 +1,42 @@
+#include <iostream>
+using namespace std;
+
+const int SIZE = 30;
+int CountOccurrences(int arr[SIZE], int n, int el)
+{
+	int count = 0;
+	for (int i = 0; i < n; i++)
+	{
+		if (arr[i] == el)
+			count++;
+	}
+	return count;
+}
+
+int GetLonlyNumber(int arr[SIZE], int n)
+{
+	for (int i = 0; i < n; i++)
+	{
+		if (CountOccurrences(arr, n, arr[i]) == 1)
+			return arr[i];
+	}
+	return -1;
+
+}
+
+int GetLonlyNumberBetter(int arr[SIZE], int n)
+{
+	int res = 0;
+	for (int i = 0; i < n; i++)
+		res ^= arr[i];
+	return res;
+}
+
+int main()
+{
+	int arr[SIZE];
+	int n;
+	for (int i = 0; i < n; i++)
+		cin >> arr[i];
+	cout << GetLonlyNumberBetter(arr, n);
+}
\ No newline at end of file
-- 
cgit v1.3.1-23-gd82d