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C Programming Exercises, Practice, Solution : Input Output

C Basic Input Output statement [10 exercises with solution]

1. Write a program that converts Centigrade to Fahrenheit. Go to the editor
Expected Output :
Input a temperature (in Centigrade): 45
113.000000 degrees Fahrenheit.
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2. Write a C program that calculates the volume of a sphere. Go to the editor
Expected Output :
Input the radius of the sphere : 2.56
The volume of sphere is 70.276237.
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3. Write a C program that prints the perimeter of a rectangle to take its height and width as input. Go to the editor
Expected Output :
Input the height of the Rectangle : 5
Input the width of the Rectangle : 7
Perimeter of the Rectangle is : 24.000000
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4. Write a C program that converts kilometers per hour to miles per hour. Go to the editor
Expected Output :
Input kilometers per hour: 15
9.320568 miles per hour
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5. Write a C program that takes hours and minutes as input, and calculates the total number of minutes. Go to the editor
Expected Output :
Input hours: 5
Input minutes: 37
Total: 337 minutes.
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6. Write a program in C that takes minutes as input, and display the total number of hours and minutes. Go to the editor
Expected Output :
Input minutes: 546
9 Hours, 6 Minutes
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7. Write a program in C that reads a forename, surname and year of birth and display the names and the year one after another sequentially. Go to the editor
Expected Output :
Input your firstname: Tom
Input your lastname: Davis
Input your year of birth: 1982
Tom Davis 1982
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8. Write a program in C to calculate the sum of three numbers with getting input in one line separated by a comma. Go to the editor
Expected Output :
Input three numbers separated by comma : 5,10,15
The sum of three numbers : 30
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9. Write a C program to perform addition, subtraction, multiplication and  division of two numbers. Go to the editor
Expected Output :
Input any two numbers separated by comma : 10,5
The sum of the given numbers : 15
The difference of the given numbers : 5
The product of the given numbers : 50
The quotient of the given numbers : 2.000000
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10. Write a C program to find the third angle of a triangle if two angles are given. Go to the editor
Expected Output :
Input two angles of triangle separated by comma : 50,70
Third angle of the triangle : 60
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C Programming Code Editor:

More to Come !

Do not submit any solution of the above exercises at here, if you want to contribute go to the appropriate exercise page.



C Programming: Tips of the Day

Reading a string with scanf:

An array "decays" into a pointer to its first element, so scanf("%s", string) is equivalent to scanf("%s", &string[0]). On the other hand, scanf("%s", &string) passes a pointer-to-char[256], but it points to the same place.

Then scanf, when processing the tail of its argument list, will try to pull out a char *. That's the Right Thing when you've passed in string or &string[0], but when you've passed in &string you're depending on something that the language standard doesn't guarantee, namely that the pointers &string and &string[0] -- pointers to objects of different types and sizes that start at the same place -- are represented the same way.

Ref : https://bit.ly/3wauNh6