sem 8

1 files changed, 26 insertions, 0 deletions

diff --git a/Sem. 06/Task_1(with functions).cpp b/Sem. 06/Task_1(with functions).cpp
new file mode 100644
index 0000000..db68d0d
--- /dev/null
+++ b/Sem. 06/Task_1(with functions).cpp
@@ -0,0 +1,26 @@
+#include <iostream>
+using namespace std;
+
+bool isPrime(int number)
+{
+	double temp = sqrt(number);
+	for (int i = 2; i <= temp; i++)
+	{
+		if (number % i == 0)
+			return false; //Спира функцията и връща отговор - лъжа
+	}
+	return true;
+}
+
+int main()
+{
+	int n;
+	cin >> n;
+
+	for (int i = 6; i <= n; i += 6)
+	{
+		if (isPrime(i - 1) && isPrime(i + 1))
+			cout << i - 1 << " " << i + 1 << endl;
+	}
+
+}
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