diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 61bc5de..ac3f262 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -10,3 +10,4 @@ add_executable(FunctionArguments FunctionArguments.cc)
 add_executable(exceptions exceptions.cc)
 add_executable(HeapMemory HeapMemory.cc)
 add_executable(AbstractClasses AbstractClasses.cc)
+add_executable(vector vector.cc)
diff --git a/src/FunctionArguments.cc b/src/FunctionArguments.cc
index aac8014..cc9013f 100644
--- a/src/FunctionArguments.cc
+++ b/src/FunctionArguments.cc
@@ -1,3 +1,4 @@
+#include <format>
 #include <iostream>
 #include <string>
 
@@ -11,7 +12,7 @@ void sus(std::string susValue, std::string& susReference)
 
 void print_string(std::string nameOf, std::string& string)
 {
-	std::cout << "The value of " << nameOf << " is " << string << std::endl;
+	std::cout << std::format("The value of {} is {}", nameOf, string) << std::endl;
 }
 
 void print_sussy_strings(std::string& sus1, std::string& sus2)
diff --git a/src/inheritance.cc b/src/inheritance.cc
index 2337b65..7e596f2 100644
--- a/src/inheritance.cc
+++ b/src/inheritance.cc
@@ -1,3 +1,4 @@
+#include <format>
 #include <iostream>
 #include <string>
 
@@ -11,6 +12,7 @@ public:
 	static void PrintName(Crewmate crewmate)
 	{
 		std::cout << "Crewmates Name: " << crewmate.name << std::endl;
+		std::cout << std::format("Crewmates Name: {}", crewmate.name) << std::endl;
 	}
 };
 
@@ -33,6 +35,6 @@ int main()
 	crewmate.PrintName(crewmate);
 
 	if (imposter.imposter) {
-		std::cout << "Imposter is a sussy imposter and their name is " << imposter.name << std::endl;
+		std::cout << std::format("Imposter is a sussy imposter and their name is {}", imposter.name) << std::endl;
 	}
 }
diff --git a/src/sqrt.cc b/src/sqrt.cc
index 9ab549d..7ab8dfa 100644
--- a/src/sqrt.cc
+++ b/src/sqrt.cc
@@ -1,4 +1,5 @@
 import Math;
+#include <format>
 #include <iostream>
 
 void print_squared(double x);
@@ -11,5 +12,5 @@ int main()
 
 void print_squared(double x)
 {
-	std::cout << "the squared of " << x << " is " << Math::square(x) << std::endl;
+	std::cout << std::format("the squared of {} is {}", x, Math::square(x)) << std::endl;
 }
diff --git a/src/vector.cc b/src/vector.cc
new file mode 100644
index 0000000..35c776f
--- /dev/null
+++ b/src/vector.cc
@@ -0,0 +1,64 @@
+#include <iostream>
+#include <stdexcept>
+#include <format>
+
+class Vector {
+public:
+	Vector(int size)
+		: elem { new double[size] }
+		, sz { size }
+	{
+		for (int i = 0; i != size; ++i) {
+			elem[i] = 0;
+		}
+	}
+
+	~Vector()
+	{
+		delete[] elem;
+	}
+
+	double& operator[](int i)
+	{
+		if (i < 0 || i > size() - 1) {
+			throw std::out_of_range { "Vector::operator[]" };
+		}
+		return elem[i];
+	}
+
+	void print_element(int i)
+	{
+		if (i < 0 || i > size() - 1) {
+			throw std::out_of_range { "Vector::print_element(int i)" };
+		}
+		std::cout << std::format("element[{}] : {}", i, elem[i]) << std::endl;
+	}
+
+	int size() const
+	{
+		return sz;
+	}
+
+private:
+	double* elem;
+	int sz;
+};
+
+int main()
+{
+	Vector vec(3);
+
+	vec[0] = 1;
+	vec[1] = 2;
+	vec[2] = 3;
+
+	vec.print_element(0);
+	vec.print_element(1);
+	vec.print_element(2);
+
+	Vector longVector(100000);
+
+	for (int i = 0; i < longVector.size(); i++) {
+		longVector[i] = 21;
+	}
+}