C++ Coding Exercises - Input and Output

Problem Statement 1: – Student Information

Write a C++ program that takes the student's name, age, and marks as input and displays them using cout.

Problem Statement 2: – Calculate Total

Write a C++ program that takes the prices of three items from the user, calculates the total, and displays the result.

Problem Statement 3: – Calculate Rectangle Perimeter

Write a C++ program that takes the length and width of a rectangle and calculates:

Perimeter = 2 × (Length + Width)

Display the result using cout.

Problem Statement 4: – Calculate Average

Write a C++ program that takes marks of three subjects, calculates the average, and displays the result.

Problem Statement 5: – Student Age

Write a C++ program that asks the user to enter their age and displays:

Your age is: 20

Problem Statement 6: – Two Numbers

Write a C++ program that takes two integers from the user and displays their:

• Sum
• Difference
• Product

Problem Statement 7: – Student Marks

Write a C++ program that takes marks of three subjects and displays the total marks.

Problem Statement 8: – Rectangle

Write a C++ program that takes the length and width of a rectangle and calculates its area.

Formula:

Area = Length × Width

Problem Statement 9: – Student Information

Write a C++ program that takes the following information from the user:

• Name
• Age
• Department
• Marks

Then display all the information using cout.

Problem Statement 10: – endl

Write a C++ program that displays your:

• Name
• Department
• Semester

Use endl to print each item on a separate line.

Problem Statement 11: – setw

Write a C++ program to display the following table using setw(10):

Number    Cube
2         8
3         27
4         64
5         125

Problem Statement 12: – Both Manipulators

Write a C++ program that uses both endl and setw() to display a simple student information table containing:

• Roll No.
• Name
• Marks