This file contains practice question for Introduction to C programming (input and output).
Q1: Write a program to print ‘Hello World’
Q2: Write a program to get age from user and print it.
Sample 1:
I/P:
19
O/p:
Your age is 19
Sample 2:
I/P: 20
O/p:
Your age is 20
Q3: Write a program to get two numbers from user and print their sum
Sample 1:
I/P:
12
12
O/p:
24
Sample 2:
I/P:
10
15
O/p:
25
Q4: Write a program to get two numbers and perform all arithmetic operations on them.
Input:
One Line containing two integers a and b
Output:
Each Line containing result of operations in the order (+, -, *, / and %)
Sample 1:
I/P:
12
13
O/P:
15
-1
156
0
12
Q5: (Update of Q3)
Print formatted output
Sample 1:
I/P:
12
12
O/p:
Sum of 12 and 12 is 24
Sample 2:
I/P:
10
15
O/p:
Sum of 10 and 15 is 25
Q6: Write a program to get the side of the square and print its perimeter
$\text{Perimeter of a square} = 4 \times \rm{side}$
Sample 1:
I/P: 4
O/p: 16
Sample 2:
I/P: 22
O/p: 88
Q7: Write a program to get the side of the square and print its area
$\text{Area of square} = \rm{side} \times \rm{side}$
Sample 1:
I/P: 4
O/p: 16
Sample 2:
I/P: 22
O/p: 484
Q8: Write a program to get the length and breadth of a rectangle and print its perimeter
$\text{Perimeter of a rectangle} = 2 \times \rm{(length + breadth)}$
Sample 1:
I/P:
4
4
O/p: 16
Sample 2:
I/P:
22
21
O/p: 86
Q9: Write a program to get the length and breadth of a rectangle and print its area
$\text{Area of a rectangle} = \text{length} \times \text{breadth}$
Sample 1:
I/P:
4
4
O/p: 16
Sample 2:
I/P:
22
21
O/p: 462
Q10: Write a program to get the number of sides and length of each side of a regular polygon and print its perimeter.
$\text{Perimeter} = \text{number of sides} \times \text{length of one side}$
Sample 1:
I/P:
8
4
O/p: 32
Sample 2:
I/P:
7
21
O/p: 147
Q11: Write a program to get the length and height of a right triangle and print its area.
$\text{Area of right triangle} = \dfrac{1}{2} \times \rm{base} \times \rm{height}$
Sample 1:
I/P:
4
4
O/p: 8.0
Sample 2:
I/P:
22
21
O/p: 231.0
Q12: Write a program to get the radius of a circle and print its perimeter rounded off to 3 decimal places. (Take $\pi = 3.14159$)
$\text{Perimeter of a circle} = 2\pi \times \rm{radius}$
Sample 1:
I/P:
4
O/p: 25.133
Sample 2:
I/P:
22
O/p: 138.230
Q13: Write a program to get the radius of a circle and print its area rounded off to 3 decimal places. (Take $\pi = 3.14159$)
$\text{Area of a circle} = \pi \times \rm{radius}^2$
Sample 1:
I/P:
4
O/p: 50.265
Sample 2:
I/P:
21
O/p: 1385.442
Q14: Write a program to get the sides of a triangle and print its area using Heron’s Formula rounded off to 3 decimal places.
$\text{Area of right triangle} = \sqrt{s \times (s-a)\times(s-b)\times(s-c)}$
$\rm{where},$
$s = \text{Semi-Perimeter} = \dfrac{\text{Perimeter of triangle}}{2}$
$a, ~b, ~c = \text{Sides of the triangle}$
To get square root, use sqrt() function from math.h header file.
Sample 1:
I/P:
3
4
5
O/p: 6.0
Sample 2:
I/P:
12
21
30
O/p: 98.359
Q15: Write a program to get the side of a equilateral triangle and print its area rounded off to 4 decimal places.
$\text{Area of equilateral triangle} = \dfrac{\sqrt{3}}{4} \times \rm{side}^2$
To get square root, use sqrt() function from math.h header file.
Sample 1:
I/P:
4
O/p: 6.9282
Sample 2:
I/P:
31
O/p: 416.1252
Q16: Write a program to get the length and height of a right triangle and print the length of its hypotenuse rounded off to 3 decimal places using Pythagoras Theorem.
From Pythagoras theorem, $ \rm{hypotenuse} = \sqrt{\rm{base}^2 + \rm{height}^2}$
To get square root, use sqrt() function from math.h header file.
Sample 1:
I/P:
3
4
O/p: 5
Sample 2:
I/P:
12
6
O/p: 13.416
Q17: Write a program to get the side of a cube and print its volume.
$\text{Volume of cube} = \rm{side}^3$
Sample 1:
I/P: 15
O/P: 3375
Q18: Write a program to get the side of a cube and print its total surface area.
$ \text{T.S.A of Cube} = 6 \times \rm{side}^2$
Sample 1:
I/P: 15
O/P: 1350
Q19: Write a program to get the side of a cube and print its Lateral surface area.
$\text{L.S.A of cube} = 4 \times \rm{side}^2$
Q20: Write a program to get the length, breadth and height of a cuboid and print its volume.
$\text{Volume of Cuboid} = \rm{length} \times \rm{breadth} \times \rm{height}$
Sample 1:
I/P:
43
28
35
O/P: 42140
Q21: Write a program to get the length, breadth and height of a cuboid and print its Total Surface Area.
$\text{T.S.A of Cuboid} = 2 \times ( (\rm{length} \times \rm{breadth}) + (\rm{breadth} \times \rm{height}) + (\rm{height} \times \rm{length}))$
Sample 1:
I/P:
43
28
35
O/P: 7378
Q22: Write a program to get the length, breadth and height of a cuboid and print its Lateral Surface Area.
$\text{L.S.A of Cuboid} = 2 \times \rm{height} \times (\rm{breadth}+ \rm{length})$