From a805c55e5b870ec3f65ce9dd5fdf6f5456a62ac3 Mon Sep 17 00:00:00 2001
From: Oskar <open7software@gmail.com>
Date: Wed, 7 Aug 2024 16:35:33 +0200
Subject: more exercises

---
 3p12.cpp              | 27 +++++++++++++++++++++++++++
 3p13.cpp              | 37 +++++++++++++++++++++++++++++++++++++
 3p14.cpp              | 39 +++++++++++++++++++++++++++++++++++++++
 3p15.cpp              | 33 +++++++++++++++++++++++++++++++++
 exercise-template.cpp |  2 ++
 5 files changed, 138 insertions(+)
 create mode 100644 3p12.cpp
 create mode 100644 3p13.cpp
 create mode 100644 3p14.cpp
 create mode 100644 3p15.cpp

diff --git a/3p12.cpp b/3p12.cpp
new file mode 100644
index 0000000..ef46169
--- /dev/null
+++ b/3p12.cpp
@@ -0,0 +1,27 @@
+#include <iostream>
+#include <vector>
+#include "sales_data.hpp"
+#include "sales_item.hpp"
+
+/*
+ *
+ * 3.12
+ *
+ *
+ */
+
+using std::string;
+using std::cout;
+using std::cin;
+using std::cerr;
+using std::clog;
+using std::endl;
+using std::vector;
+int main () {
+
+    vector<vector<int>> ivec; // A vector of vectors of int
+	//vector<string> svec = ivec; // Not valid, you can not initialize a vector of strings to with a vector of int.
+	vector<string> svec(10, "null"); // A vector of 10 objects of type string all initialized to "null"
+	
+	return 0;
+}
diff --git a/3p13.cpp b/3p13.cpp
new file mode 100644
index 0000000..ca60b58
--- /dev/null
+++ b/3p13.cpp
@@ -0,0 +1,37 @@
+#include <iostream>
+#include <vector>
+#include "sales_data.hpp"
+#include "sales_item.hpp"
+
+/*
+ *
+ * 3.13
+ *
+ *
+ */
+
+using std::string;
+using std::cout;
+using std::cin;
+using std::cerr;
+using std::clog;
+using std::endl;
+using std::vector;
+int main () {
+
+    vector<int> v1; // 0 elements?
+	vector<int> v2(10); // 10 elements, default initialized
+	vector<int> v3(10, 42); // 10 elements, all initialized to 42
+	vector<int> v4{10}; // 1 element, initialized to 10.
+	vector<int> v5{10, 42}; // 2 elements, first one 10, second one 42
+	vector<string> v6{10}; // Not really valid but it creates 10 elements of default initialized strings. Empty strings.
+	vector<string> v7{10, "hi"}; // Not really valid but creates 10 elements that says "hi"
+
+	// some extra testing below
+	vector<string> v8(10); // same as v6?
+	vector<string> v9(10, "hi"); // Same as v7?
+
+	cout << v7[1] << endl;
+	cout << v9[1] << endl;
+	return 0;
+}
diff --git a/3p14.cpp b/3p14.cpp
new file mode 100644
index 0000000..b11a9ff
--- /dev/null
+++ b/3p14.cpp
@@ -0,0 +1,39 @@
+#include <iostream>
+#include <vector>
+#include "sales_data.hpp"
+#include "sales_item.hpp"
+
+/*
+ *
+ * 3.14
+ *
+ * Not exactly according to instructions but still learned from making this.
+ */
+
+using std::string;
+using std::cout;
+using std::cin;
+using std::cerr;
+using std::clog;
+using std::endl;
+using std::vector;
+int main () {
+
+	int n;
+	vector<int> vn;
+    if(cin >> n) {
+		vn.push_back(n);
+		while(cin >> n){
+			vn.push_back(n);
+		}
+		
+	} else {
+		return -1;
+	}
+
+	for(auto vni : vn) {
+		cout << vni << endl;
+	}
+	
+	return 0;
+}
diff --git a/3p15.cpp b/3p15.cpp
new file mode 100644
index 0000000..27a648d
--- /dev/null
+++ b/3p15.cpp
@@ -0,0 +1,33 @@
+#include <iostream>
+#include <vector>
+#include "sales_data.hpp"
+#include "sales_item.hpp"
+
+/*
+ *
+ * 3.15
+ *
+ * Not completely according to instructions but thats okay. I still learned creating this.
+ */
+
+using std::string;
+using std::cout;
+using std::cin;
+using std::cerr;
+using std::clog;
+using std::endl;
+using std::vector;
+int main () {
+
+    string phrase;
+	vector<string> vp;
+	while(getline(cin, phrase)) {
+		vp.push_back(phrase);
+	}
+
+	for(auto vpi : vp) {
+		cout << vpi << endl;
+	}
+	
+	return 0;
+}
diff --git a/exercise-template.cpp b/exercise-template.cpp
index 38099b7..8986133 100644
--- a/exercise-template.cpp
+++ b/exercise-template.cpp
@@ -1,4 +1,5 @@
 #include <iostream>
+#include <vector>
 #include "sales_data.hpp"
 #include "sales_item.hpp"
 
@@ -15,6 +16,7 @@ using std::cin;
 using std::cerr;
 using std::clog;
 using std::endl;
+using std::vector;
 int main () {
 
     
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