# C Programming Exercises, Practice, Solution : Conditional Statement

## C Conditional Statement [26 exercises with solution]

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1. Write a C program to accept two integers and check whether they are equal or not. Go to the editor
Test Data : 15 15
Expected Output
:
Number1 and Number2 are equal
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2. Write a C program to check whether a given number is even or odd. Go to the editor
Test Data : 15
Expected Output :
15 is an odd integer
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3. Write a C program to check whether a given number is positive or negative. Go to the editor
Test Data : 15
Expected Output :
15 is a positive number
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4. Write a C program to find whether a given year is a leap year or not. Go to the editor
Test Data : 2016
Expected Output :
2016 is a leap year.
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5. Write a C program to read the age of a candidate and determine whether it is eligible for casting his/her own vote. Go to the editor
Test Data : 21
Expected Output :
Congratulation! You are eligible for casting your vote.
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6. Write a C program to read the value of an integer m and display the value of n is 1 when m is larger than 0, 0 when m is 0 and -1 when m is less than 0. Go to the editor
Test Data : -5
Expected Output :
The value of n = -1
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7. Write a C program to accept the height of a person in centimeter and categorize the person according to their height. Go to the editor
Test Data : 135
Expected Output :
The person is Dwarf.
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8. Write a C program to find the largest of three numbers. Go to the editor
Test Data : 12 25 52
Expected Output :
1st Number = 12,        2nd Number = 25,        3rd Number = 52
The 3rd Number is the greatest among three
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9. Write a C program to accept a coordinate point in a XY coordinate system and determine in which quadrant the coordinate point lies. Go to the editor
Test Data : 7 9
Expected Output :
The coordinate point (7,9) lies in the First quadrant.
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10. Write a C program to find the eligibility of admission for a professional course based on the following criteria: Go to the editor
Eligibility Criteria : Marks in Maths >=65 and Marks in Phy >=55 and Marks in Chem>=50 and Total in all three subject >=190 or Total in Maths and Physics >=140 ------------------------------------- Input the marks obtained in Physics :65 Input the marks obtained in Chemistry :51 Input the marks obtained in Mathematics :72 Total marks of Maths, Physics and Chemistry : 188 Total marks of Maths and Physics : 137 The candidate is not eligible.
Expected Output :
The candidate is not eligible for admission.
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11. Write a C program to calculate the root of a Quadratic Equation. Go to the editor
Test Data : 1 5 7
Expected Output :
Root are imaginary;
No solution.
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12. Write a C program to read roll no, name and marks of three subjects and calculate the total, percentage and division. Go to the editor
Test Data :
Input the Roll Number of the student :784
Input the Name of the Student :James
Input the marks of Physics, Chemistry and Computer Application : 70 80 90
Expected Output :
Roll No : 784
Name of Student : James
Marks in Physics : 70
Marks in Chemistry : 80
Marks in Computer Application : 90
Total Marks = 240
Percentage = 80.00
Division = First
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13. Write a C program to read temperature in centigrade and display a suitable message according to temperature state below : Go to the editor
Temp < 0 then Freezing weather
Temp 0-10 then Very Cold weather
Temp 10-20 then Cold weather
Temp 20-30 then Normal in Temp
Temp 30-40 then Its Hot
Temp >=40 then Its Very Hot
Test Data :
42
Expected Output :
Its very hot.
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14. Write a C program to check whether a triangle is Equilateral, Isosceles or Scalene. Go to the editor
Test Data :
50 50 60
Expected Output :
This is an isosceles triangle.
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15. Write a C program to check whether a triangle can be formed by the given value for the angles. Go to the editor
Test Data :
40 55 65
Expected Output :
The triangle is not valid.
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16. Write a C program to check whether a character is an alphabet, digit or special character. Go to the editor
Test Data :
@
Expected Output :
This is a special character.
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17. Write a C program to check whether an alphabet is a vowel or consonant. Go to the editor
Test Data :
k
Expected Output :
The alphabet is a consonant.
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18. Write a C program to calculate profit and loss on a transaction. Go to the editor
Test Data :
500 700
Expected Output :
You can booked your profit amount : 200
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19. Write a program in C to calculate and print the Electricity bill of a given customer. The customer id., name and unit consumed by the user should be taken from the keyboard and display the total amount to pay to the customer. The charge are as follow : Go to the editor

Unit Charge/unit
upto 199 @1.20
200 and above but less than 400 @1.50
400 and above but less than 600 @1.80
600 and above @2.00

If bill exceeds Rs. 400 then a surcharge of 15% will be charged and the minimum bill should be of Rs. 100/-

Test Data :
1001
James
800
Expected Output :
Customer IDNO :1001
Customer Name :James
unit Consumed :800
Amount Charges @Rs. 2.00 per unit : 1600.00
Surchage Amount : 240.00
Net Amount Paid By the Customer : 1840.00

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20. Write a program in C to accept a grade and declare the equivalent description : Go to the editor

E Excellent
V Very Good
G Good
A Average
F Fail

Test Data :
Input the grade :A
Expected Output :
You have chosen : Average
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21. Write a program in C to read any day number in integer and display day name in the word. Go to the editor
Test Data :
4
Expected Output :
Thursday
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22. Write a program in C to read any digit, display in the word. Go to the editor
Test Data :
4
Expected Output :
Four
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23. Write a program in C to read any Month Number in integer and display Month name in the word. Go to the editor
Test Data :
4
Expected Output :
April
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24. Write a program in C to read any Month Number in integer and display the number of days for this month. Go to the editor
Test Data :
7
Expected Output :
Month have 31 days
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25. Write a program in C which is a Menu-Driven Program to compute the area of the various geometrical shape. Go to the editor
Test Data :
1
5
Expected Output :
The area is : 78.500000
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26. Write a program in C which is a Menu-Driven Program to perform a simple calculation. Go to the editor
Test Data :
10
2
3
Expected Output :
The Multiplication of 10 and 2 is: 20
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## C Programming: Tips of the Day

Placement of the asterisk in pointer declarations:

4, 5, and 6 are the same thing, only test is a pointer. If you want two pointers, you should use:

```int *test, *test2;
Or, even better (to make everything clear):
int* test;
int* test2;
```

Ref : https://bit.ly/2Zm0HMO