Pract. 01 - Solutions

5 files changed, 84 insertions, 0 deletions

diff --git a/pract_SI/pract. 01/task1.cpp b/pract_SI/pract. 01/task1.cpp
new file mode 100644
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--- /dev/null
+++ b/pract_SI/pract. 01/task1.cpp
@@ -0,0 +1,12 @@
+#include<iostream>
+#include<string>
+using namespace std;
+int main()
+{
+	 string name;
+	 cout << "What is your name?\n";
+	 cin >> name;
+	 cout << "Hello, " << name << endl;
+
+	 return 0;
+}
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diff --git a/pract_SI/pract. 01/task2.cpp b/pract_SI/pract. 01/task2.cpp
new file mode 100644
index 0000000..554653d
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+++ b/pract_SI/pract. 01/task2.cpp
@@ -0,0 +1,17 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	 double x, y;
+
+	 cout << "First side: ";
+	 cin >> x;
+
+	 cout << "Second side: ";
+	 cin >> y;
+
+	 cout << "Parameter: " << 2 * (x + y) << endl;
+	 cout << "Area: " << x * y << endl;
+
+	 return 0;
+}
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diff --git a/pract_SI/pract. 01/task3.cpp b/pract_SI/pract. 01/task3.cpp
new file mode 100644
index 0000000..830348b
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+++ b/pract_SI/pract. 01/task3.cpp
@@ -0,0 +1,16 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	 double a, b;
+
+	 cout << "First number: ";
+	 cin >> a;
+
+	 cout << "Second number: ";
+	 cin >> b;
+
+	 cout << boolalpha << (a < b) << endl;
+
+	 return 0;
+}
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diff --git a/pract_SI/pract. 01/task4.cpp b/pract_SI/pract. 01/task4.cpp
new file mode 100644
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+++ b/pract_SI/pract. 01/task4.cpp
@@ -0,0 +1,23 @@
+#include<iostream>
+#include<cmath>
+using namespace std;
+int main()
+{
+	 double x1, y1, x2, y2;
+
+	 cout << "x1: ";
+	 cin >> x1;
+
+	 cout << "y1: ";
+	 cin >> y1;
+
+	 cout << "x2: ";
+	 cin >> x2;
+
+	 cout << "y2: ";
+	 cin >> y2;
+
+	 cout << round(sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2)) * 100) / 100 << endl;
+
+	 return 0;
+}
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diff --git a/pract_SI/pract. 01/task5.cpp b/pract_SI/pract. 01/task5.cpp
new file mode 100644
index 0000000..576bf2e
--- /dev/null
+++ b/pract_SI/pract. 01/task5.cpp
@@ -0,0 +1,16 @@
+#include<iostream>
+#include<string>
+#include<iomanip>
+using namespace std;
+int main()
+{
+	 string card_number;;
+
+	 cout << "Card number: ";
+	 cin >> card_number;
+
+	 cout << "Hidden card number: " << setfill('X') << setw(13)
+		  << card_number[12] << card_number[13] << card_number[14] << card_number[15] << endl;
+
+	 return 0;
+}
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