Write a program that reads characters from a file

Assignment Help Basic Computer Science

Reference no: EM131399743

You can use a substitution code to encode a message. In this scheme, a key maps each letter to another letter. Each letter in the plain-text message is replaced according to the key to produce the encoded message, or cipher text. Suppose you are given some cipher text, but not the key. One method of breaking such a code is to count the frequency of letters in the cipher text and then make guesses about the mapping based on the frequencies of letters in typical English text. Write a program that reads characters from a file and uses a sorted list to find the frequency of each letter.

Reference no: EM131399743

Questions Cloud

Do you think president truman was right or wrong : Do you think President Truman was right or wrong in his decision to drop the atomic bomb on Hiroshima and Nagasaki? Why? After appropriate research, present your position based upon Truman's assessment of the military, humanitarian, economic, pol..

Information systems business risks : Identify the risks related to information systems and suggest ways to minimize them.

Compute the sample mean and trimmed mean and median : Each of the 29 students counted the number of seeds in their pumpkin and the results were 250, 220, 281, 247, 230, 209, 240, 160, 370, 274, 210, 204, 243, 251, 190, 200, 130, 150, 177, 475, 221, 350, 224, 163, 272, 236, 200, 171, 98.- Compute the s..

Does the strategy indicate any long-term strategic intent : Does the strategy indicate any long-term strategic intent? Does the proposed strategy position the company to perform activities differently than rivals do? How and why?

Write a program that reads characters from a file : One method of breaking such a code is to count the frequency of letters in the cipher text and then make guesses about the mapping based on the frequencies of letters in typical English text. Write a program that reads characters from a file and u..

Assignment on menu selection : Despite being a fairly old technology, menu-driven interfaces are very common in user interface design. Menu-driven interfaces consist of a series of screens which are navigated by choosing options from lists.

Discuss the usefulness of pretesting and pilot testing : Differentiate between randomized and nonrandomized approaches to sampling populations. Discuss the importance of the role of sampling when conducting research. Discuss the usefulness of pretesting, pilot testing, or field-testing a survey

How does this relate to the story of the linotype : First read Howard column (1928), and then Fry's article (2004). In comparing the two stories discuss how we can explain their different views of the dangers of mass-production and centralization of the newspapers. How does this relate to the story..

Compute the sample winsorized variance : For the observations in the previous problem, compute the sample 20% Winsorized variance.- In the previous problem, would you expect the sample variance to be larger or smaller than 51.4? Verify your answer.

User Account

All Pages