Update example01_with_functions.cpp

1 files changed, 5 insertions, 2 deletions

diff --git a/Sem. 04/example01_with_functions.cpp b/Sem. 04/example01_with_functions.cpp
index f33b6b9..64d4367 100644
--- a/Sem. 04/example01_with_functions.cpp
+++ b/Sem. 04/example01_with_functions.cpp
@@ -1,8 +1,11 @@
 #include <iostream>

 using namespace std;

 

-bool isPrime(int n)

+bool isPrime(unsigned n)

 {

+	if(n <= 1)

+		return false;

+

 	double temp = sqrt(n);

 

 	for (int i = 2; i <= temp; i++)

@@ -24,4 +27,4 @@ int main()
 		if (isPrime(i - 1) && isPrime(i + 1))

 			cout << i - 1 << " " << i + 1 << endl;

 	}

-}
\ No newline at end of file
+}