C activities
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This document provides hints for 5 C programming activities: 1) Print numbers from 1 to a user-input number using a for loop. 2) Create an array and use a for loop to calculate and print the squares of numbers from 1 to 10. 3) Write a program that uses for loops to print a multiplication table for a user-input range of numbers. 4) Use a for loop to print all ASCII characters from 1 to 255. 5) Use a for loop with a character variable to print all capital letters from A to Z.
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Using the Ceasar Cipher encryption algorithm, you take each character in the original message
and shift it over a specified number of characters in the alphabet. If you shift the character A by
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Table 14-1: The ASCII Table
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Write a C++ program that reads a line from the keyboard, and that returns the number of lowercase letters in the line. Your code should
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Enter a sentence: Hi, World, HOW are you?
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Enter three numbers separated by a space: 17 36 29
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Using the Ceasar Cipher encryption algorithm, you take each characte.pdf
Using the Ceasar Cipher encryption algorithm, you take each character in the original message
and shift it over a specified number of characters in the alphabet. If you shift the character A by
one space, you get the character B. If you shift the character A by two spaces, you get the
character C. The figure below shows some characters shifted by 3 spaces (A becomes C, B
becomes D, C become E, D becomes F, etc).
The number of letters to shift the characters in your message is called the encryption key.
If we want to send the message hello using a key of 3, then we can create the encrypted message
like this:
h shifted 3 is k
e shifted 3 is h
l shifted 3 is o
l shifted 3 is o
o shifted 3 is r
So our encrypted message would be khoor.
Think about how to create a program that will perform the Ceasar Cipher on a text message that
is entered by the user. The user will also enter the integer key that should be used for the
encryption. Your program should display the encrypted message at the end of the program.
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message. Try to write the processing step so that it has a format similar to the way a loop looks
in Python, but dont worry about the details of how to perform the shift algorithm yet. Just note
Use Shift Algorithm to find character.)
Now lets learn how to implement the shift algorithm to calculate the encrypted value of that
character. First lets learn about how to convert a letter to its equivalent ASCII value. Even
when data is represented as character for humans, the computer likes to think of the characters as
numbers. The computer doesnt think about the character a as a letter. Instead it assigns a
number to each character and thinks about characters using their corresponding number. The
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for American Standard Code for Information Interchange). Heres a table that shows the ASCII
value for most characters.
Table 14-1: The ASCII Table
The good news is that you dont need to memorize the table. The computer already knows all
about how to translate a character into its ASCII value. We just need to know the command to
perform this translation.
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EX:
character = input(Enter a character)
asciiEquivalent = ord(character)
print(The ASCII value of , character, is , asciiEquivalent)
Write a Python program that just includes these 3 lines to test out the conversion process for
yourself. Do you always get the ASCII value shown for the characters in the table above? (Its a
good sign if you do!)
Now lets think about how to use the ASCII value to achieve our Caesar Cipher shift. If we have
the ASCII value of a character, we can add the key to that value to find the ASCII value of the
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ECO 520 Case Study One: Production and Cost Guidelines and Rubric
Overview
This course includes two case studies. These exercises are designed to actively involve you in microeconomic reasoning and decision making and to help you apply the concepts covered in the course to complex real-world situations. The case studies provide practice reading and interpreting both quantitative and qualitative analysis. You will then use your analysis to make decisions and predictions. These exercises provide practice communicating reasoning in a professional manner.
Prompt
Case Study One: Production and Costfocuses on a perfectly competitive industry. Each competitive firm in this industry has a Cobb-Douglas production function:
5
.
0
5
.
0
02
.
0
L
K
q
=
. These firms combine capital and labor to produce output. In task 3-2 you will use graphs and equations to analyze competitive firm decisions, the interaction between those decisions, and the competitive market determination of price.
Skills needed to complete this case study:
1. The ability to enter data, enter formulas, and create charts in Excel (Note: use the data provided in the Case Study One Data document.)
2. The ability to use basic algebra
To complete Case Study One, follow the steps below:
1. Use algebra to derive the cost function:
· To solve for K as a function of q and L. Show your work, and verify that you have this solution:
L
q
K
2
2
02
.
0
=
.
· Write the cost function. Cost is equal to the sum of the expenditures to purchase capital plus the expenditures to purchase labor. Each of these expenditures is equal to the price of the input multiplied by the quantity of the input. Use the letter r to denote the price of capital and w to denote the price of labor.
2. Use Excel to create and graph isoquant curves:
· Use column A to store possible values for L. Use the first row to label the column. Put a zero (use the number 0) in the second row. Put the formula =a2+5 in the third row. Copy this formula in rows 4-25.
· Use column B to store the quantity of K that is needed to combine with each possible value of L to produce 5 units. Use the equation from Step 1, with q = 5.
· Use column C to store the quantity of K that is needed to combine with each possible value of L to produce 10 units. Use the equation from Step 1, with q = 10.
· Use column D to store the quantity of K that is needed to combine with each possible value of L to produce 15 units. Use the equation from Step 1, with q = 15.
· Use scatter-plot to graph the isoquants. Print the graph, and use this graph to complete the following table:
Q
quantity of L that must be combined with K=5000 to produce each quantity of output (q)
5
10
15
3. Consider the short run situation in which K is fixed at 5000. Assume r = .05 and w = 40. Open a new Excel worksheet for cost information. Note the difference between your production worksheet, in which the first column stored possible values of L, and this new cost worksheet in ...
ECO 520 Case Study One Production and Cost Guidelines and Rubri.docx
ECO 520 Case Study One: Production and Cost Guidelines and Rubric
Overview
This course includes two case studies. These exercises are designed to actively involve you in microeconomic reasoning and decision making and to help you apply the concepts covered in the course to complex real-world situations. The case studies provide practice reading and interpreting both quantitative and qualitative analysis. You will then use your analysis to make decisions and predictions. These exercises provide practice communicating reasoning in a professional manner.
Prompt
Case Study One: Production and Costfocuses on a perfectly competitive industry. Each competitive firm in this industry has a Cobb-Douglas production function:
5
.
0
5
.
0
02
.
0
L
K
q
=
. These firms combine capital and labor to produce output. In task 3-2 you will use graphs and equations to analyze competitive firm decisions, the interaction between those decisions, and the competitive market determination of price.
Skills needed to complete this case study:
1. The ability to enter data, enter formulas, and create charts in Excel (Note: use the data provided in the Case Study One Data document.)
2. The ability to use basic algebra
To complete Case Study One, follow the steps below:
1. Use algebra to derive the cost function:
· To solve for K as a function of q and L. Show your work, and verify that you have this solution:
L
q
K
2
2
02
.
0
=
.
· Write the cost function. Cost is equal to the sum of the expenditures to purchase capital plus the expenditures to purchase labor. Each of these expenditures is equal to the price of the input multiplied by the quantity of the input. Use the letter r to denote the price of capital and w to denote the price of labor.
2. Use Excel to create and graph isoquant curves:
· Use column A to store possible values for L. Use the first row to label the column. Put a zero (use the number 0) in the second row. Put the formula =a2+5 in the third row. Copy this formula in rows 4-25.
· Use column B to store the quantity of K that is needed to combine with each possible value of L to produce 5 units. Use the equation from Step 1, with q = 5.
· Use column C to store the quantity of K that is needed to combine with each possible value of L to produce 10 units. Use the equation from Step 1, with q = 10.
· Use column D to store the quantity of K that is needed to combine with each possible value of L to produce 15 units. Use the equation from Step 1, with q = 15.
· Use scatter-plot to graph the isoquants. Print the graph, and use this graph to complete the following table:
Q
quantity of L that must be combined with K=5000 to produce each quantity of output (q)
5
10
15
3. Consider the short run situation in which K is fixed at 5000. Assume r = .05 and w = 40. Open a new Excel worksheet for cost information. Note the difference between your production worksheet, in which the first column stored possible values of L, and this new cost worksheet in ...
Lab6: I/O and Arrays
This document outlines 5 problems for a homework assignment on input/output (I/O) and arrays in C++. Problem 1 involves reading a data file and calculating the median and quartiles. Problem 2 calculates the average and standard deviation of numbers in a file. Problem 3 merges two sorted files of numbers into a third file. Problem 4 performs hexadecimal addition with overflow checking. Problem 5 defines a function to remove repeated characters from a partially filled array.
best notes in c language
This document provides an overview of the C programming language and includes 97 C programming problems and their solutions. It begins with the basics of C including history, why C is used, data types, operators, control structures, functions, arrays, pointers, structures and file handling. It then lists 97 programming problems covering simple programs, conditional statements, loops, strings, arrays, structures, functions, pointers and file handling. The problems increase in complexity and cover most fundamental concepts of C programming.
Introduction to C Programming
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CS291(C Programming) assignment
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Basic of the C language
C is a programming language created in 1972 at Bell Labs to design the UNIX operating system. It spread quickly due to its power and portability. In 1989, ANSI standardized C to resolve issues from different compiler versions. C is an excellent choice for first programs due to its efficiency, flexibility, portability, and ability to write system software and packages. It has a rich set of data types, operators, and functions and allows extending functionality with custom functions. Variables are names for memory locations that can hold different data types and values.
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