PROGRAMMING IN C

1.1)

Requriements

• Program must compile with both -Wall and -Werror options enabled
• Submit only the files requested
• Use doubles to store real numbers
• Print all doubles to 2 decimal points unless stated otherwise

Restrictions

• No global variables may be used
• Your main function may only declare variables and call other functions

Description

Write a program called grade_need.c that calcualtes the minimum percent needed on the final to achieve the desired grade. If the desired grade cannot be achieved because the person cannot score low or high enough on the final to get the desired grade, your program should tell them so.

Grade	Minimum Percent Needed
A	90%
B	80%
C	70%
D	60%
F	0%

Requirements

• Your program should be able to accept both lowercase and uppercase letters for the letter grade desired

Assumptions

• Input is NOT guarenteed to be valid
  • Some examples of improprer input are
    • Incorrectlly formatted input
    • Incorrect letter grades desired
  • If invalid input is received, your program should report it and terminate
    • You'll find the exit function in stdlib.h for doing this. Make sure to only use 0 with exit and no other value.
  • Wait until we cover how to handle invalid input in class before dealing with this part of the problem

Examples

Example 1

Enter the grade you want in the class: B Enter your current percent in the class: 75 Enter the weight of the final: 20 You need a grade of at least 100.00% on the final to get a B in the class.

Example 2

Enter the grade you want in the class: b Enter your current percent in the class: 75 Enter the weight of the final: 25 You need a grade of at least 95.00% on the final to get a b in the class.

1.2)

Requriements

• Program must compile with both -Wall and -Werror options enabled
• Submit only the files requested
• Use doubles to store real numbers
• Print all doubles to 2 decimal points unless stated otherwise

Restrictions

• No global variables may be used
• Your main function may only declare variables and call other functions

Description

In this program you will be converting measurements from one unit to another.

Temperatures

From	Farenheit	Celsius	Kelvin
Farenheit(F)	F	(F - 32) * 5/9	(F-32)*5/9+273.15
Celsius(C	(C * 9/5) +32	C	C + 273.15
Kelvin(K)	(K - 273.15) * 9/5 + 32	K -273.15	K

Distances

From	Inches	Feet	Yards	Miles
Inches(I)	I	I / 12	I / 36	I / 63360
Feet(F)	F * 12	F	F / 3	F / 5280
Yards(Y)	Y* 36	Y * 3	Y	Y / 1760
Miles(M)	M * 63360	M * 5280	M * 1760	M

Requirements

• Users should be able to enter both upper and lower case letters for units
• Any amount of white space should be allowed inputs

Assumptions

• Input is NOT guarenteed to be valid
  • If invalid input is received, your program should report it and terminate
  • Wait until we cover how to handle invalid input in class before dealing with this part of the problem

Tips

• This problem is very large and you will want to break it down into many functions to help manage complexity
• When reading in a character don't forget to put a space in front of the %c in scanf
• You can save yourself a bit of work by always converting to a common unit and then converting to the desired unit
  • For example always converting yards first and then from yards to the desired unit
• The exit function in stdlib.h can be very helpful for ending a program early. If you use it make sure to do exit(0)

Examples

Example 1

Pick the type of conversion that you would like to do. T or t for temperature D or d for distance Enter your choice: t Enter the temperature followed by its suffix (F, C, or K): 0K Enter the new unit type (F, C, or K): C 0.00K is -273.15C

Example 2

Pick the type of conversion that you would like to do. T or t for temperature D or d for distance Enter your choice: d Enter the distance followed by its suffix (I,F,Y,M): 5 y Enter the new unit type (I,F,Y,M): i 5.00Y is 180.00I