From 7b48d82f74cfa2a8820cad4c50ca7a916458850a Mon Sep 17 00:00:00 2001
From: Angel Dimitriev <achi_d@abv.bg>
Date: Tue, 2 Nov 2021 14:32:57 +0200
Subject: Add files via upload

---
 Sem. 04/example1_no_functions.cpp | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 Sem. 04/example1_no_functions.cpp

(limited to 'Sem. 04/example1_no_functions.cpp')

diff --git a/Sem. 04/example1_no_functions.cpp b/Sem. 04/example1_no_functions.cpp
new file mode 100644
index 0000000..06e6629
--- /dev/null
+++ b/Sem. 04/example1_no_functions.cpp	
@@ -0,0 +1,39 @@
+#include <iostream>
+using namespace std;
+
+
+int main()
+{
+	int n;
+	cin >> n;
+	
+	for (int i = 6; i < n; i += 6)
+	{
+		int firstToCheck = i - 1;
+		int secondToCheck = i + 1;
+
+		//prime check
+		bool isFirstPrime = true;
+		double temp = sqrt(firstToCheck);
+		for (int j = 2; j <= temp; j++)
+		{
+			if (firstToCheck % j == 0)
+				isFirstPrime = false;
+		}
+
+		if (!isFirstPrime)
+			continue;
+
+		//prime check
+		bool isSecondPrime = true;
+		double temp2 = sqrt(secondToCheck);
+		for (int j = 2; j <= temp2; j++)
+		{
+			if (secondToCheck % j == 0)
+				isSecondPrime = false;
+		}
+
+		if (isSecondPrime)
+			cout << firstToCheck << " " << secondToCheck << endl;
+	}
+}
\ No newline at end of file
-- 
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