1、命名 文件和邮件名相同 压缩包内文件无所谓 3414_E01.zip在下周二上课前交Exercise 1: Programming Environment and Basic Input/Output1. Write a program that prints “This is my first program!” on the screen. (a) Save this program onto your own disk with the name of e2-1a;(b) Run this program without opening Turbo C;(c) Modify this p
2、rogram to print “This is my second program!”, then save it as e2-1b. Please do not overwrite the first program.2. Write a program that prints the number 1 to 4 on the same line. Write the program using the following methods:(a) Using four “printf” statements.(b) Using one “printf” statement with no
3、conversion specifier (i.e. no %).(c) Using one “printf” statement with four conversion specifiers3(a) Write a program that calculates and displays the number of minutes in 15 days.(b) Write a program that calculates and displays how many hours 180 minutes equal to.(c) (Optional) How about 174 minute
4、s?Exercise 2: Data Types and Arithmetic Operations1. You purchase a laptop computer for $889. The sales tax rate is 6 percent. Write and execute a C program that calculates and displays the total purchase price (net price + sales tax).2Write a program that reads in the radius of a circle and prints
5、the circles diameter, circumference and area. Use the value 3.14159 for “”.3Write a program that reads in two numbers: an account balance and an annual interest rate expressed as a percentage. Your program should then display the new balance after a year. There are no deposits or withdraws just the
6、interest payment. Your program should be able to reproduce the following sample run:Interest calculation program.Starting balance? 6000Annual interest rate percentage? 4.25Balance after one year: 6255.00Exercise 3: Selection structure1 Write a C program that accepts a students numerical grade, conve
7、rts the numerical grade to Passed (grade is between 60-100), Failed (grade is between 0-59), or Error (grade is less than 0 or greater than 100).2 Write a program that asks the user to enter an integer number, then tells the user whether it is an odd or even number. 3 Write a program that reads in t
8、hree integers and then determines and prints the largest in the group.Exercise 4: switch statement and simple “while” repetition statement1. Write a program that reads three integers an abbreviated date (for example: 26 12 94) and that will print the date in full; for example: 26th December 1994. Th
9、e day should be followed by an appropriate suffix, st, nd, rd or th. Use at least one switch statement.2Write a C program that uses a while loop to calculate and print the sum of the even integers from 2 to 30.3. A large chemical company pays its sales staff on a commission basis. They receive 200 p
10、er week plus 9% of their gross sales for that week. For example, someone who sells 5000 of chemicals in one week will earn 200 plus 9% of 5000, a total of 650. Develop a C program that will input each salespersons sales for the previous week, and print out their salary. Process one persons figures a
11、t a time.Enter sales in pounds (-1 to end): 5000.00Salary is: 650.00Enter sales in pounds (-1 to end): 00.00Salary is: 200.00Enter sales in pounds (-1 to end): 1088.89Salary is: 298.00Enter sales in pounds (-1 to end): -1Optional：两重的 while4. A mail order company sells five different products whose r
12、etail prices are shown in the following table:Product Number Retail Price (in pounds)1 2.982 4.503 9.984 4.495 6.87Write a C program that reads in a series of pairs of numbers as follows:(1). Product number(2). Quantity sold for one dayYour program should use a switch statement to help determine the
13、 retail price for each product, and should use a sentinel-controlled loop to calculate the total retail value of all products sold in a given week (7days).Exercise 5: for and do while” repetition statements 1. Write a program which uses a do/while loop to print out the first 10 powers of 2 other tha
14、n 0 (ie. it prints out the values of 21, 22, ., 210). Use a for loop to do the same.2. The constant can be calculated by the infinite series: = 4 - 4/3 + 4/5 - 4/7 + 4/9 - 4/11 +Write a C program that uses a do/while loop to calculate using the series. The program should ask the user how many terms
15、in the series should be used. Thus if the user enters 3, then the program should calculate as being 4 - 4/3 + 4/5.Nested repetition 3. Write a program that prints the following diamond shape. You may use printf statements that print either a single asterisk (*) or a single blank. Maximize your use o
16、f repetition (with nested for statements) and minimize the number of printf statements.*4. Write a program to print a table as follows:1*1= 12*1= 2 2*2= 43*1= 3 3*2= 6 3*3= 9.9*1= 9 9*2=18 9*3=27 9*4=36 9*5=45 9*6=54 9*7=63 9*8=72 9*9=81Exercise 6: Simple Functions 1. Write a C program that reads se
17、veral numbers and uses the function round_to_nearest to round each of these numbers to the nearest integer. The program should print both the original number and the rounded number. 2. Write a program that reads three pairs of numbers and adds the larger of the first pair, the larger of the second p
18、air and the larger of the third pair. Use a function to return the larger of each pair.3. A car park charges a 2.00 minimum fee to park for up to 3 hours, and an additional 0.50 for each hour or part hour in excess of three hours. The maximum charge for any given 24-hour period is 10.00. Assume that
19、 no car parks for more than 24 hours at a time.Write a C program that will calculate and print the parking charges for each of 3 customers who parked their car in the car park yesterday. The program should accept as input the number of hours that each customer has parked, and output the results in a
20、 neat tabular form, along with the total receipts from the three customers:Car Hours Charge1 1.5 2.002 4.0 2.503 24.0 10.00TOTAL 29.5 14.50The program should use the function calculate_charges to determine the charge for each customer.Exercise 7: More Functions1. Write a program that uses sentinel-c
21、ontrolled repetition to take an integer as input, and passes it to a function even which uses the modulus operator to determine if the integer is even. The function even should return 1 if the integer is even, and 0 if it is not. The program should take the value returned by the function even and us
22、e it to print out a message announcing whether or not the integer was even.2. Write a C program that uses the function integerPower1(base, exponent) to return the value of:baseexponentso that, for example, integerPower1(3, 4) gives the value 3 * 3 * 3 * 3. Assume that exponent is a positive, non-zer
23、o integer, and base is an integer. The function should use a for loop, and make no calls to any math library functions.3. Write a C program that uses the recursive function integerPower2(base, exponent) to return the value of:baseexponentso that, for example, integerPower2(3, 4) gives the value 3 *
24、3 * 3 * 3. Assume that exponent is a positive, non-zero integer, and base is an integer. The function should make no calls to any math library functions.(Hint: the recursive step will use the relationship:baseexponent = base . baseexponent - 1and the base case will be when exponent is 1 since : base
25、1 = base.)Exercise 8: Arrays1. Write a program that reads ten numbers supplied by the user into a single subscripted array, and then prints out the average of them.2. Write a program that reads ten numbers supplied by the user into a 2 by 5 array, and then prints out the maximum and minimum values h
26、eld in:(a) each row (2 rows)(b) the whole array3 Use a single-subscripted array to solve the following problem. Read in 20 numbers, each of which is between 10 and 100, inclusive. As each number is read, print it only if it is not a duplicate of a number already read. Prepare for the “worst case” in
27、 which all 20 numbers are different. Use the smallest possible array to solve this problem.Exercise 9: More Arrays1. Write a program that enters 5 names of towns and their respective distance (an integer) from London in miles. The program will print of the names of the towns that are less than 100 m
28、iles from London. Use arrays and character strings to implement your program.2. Write a program that prompts the user to type in four character strings, places these in an array of strings, and then prints out: (e.g. I am Peter Pan)(i) The four strings in reverse order. (e.g. Pan Peter am I)(ii) The
29、 four strings in the original order, but with each string backwards. (e.g. I ma reteP naP)(iii) The four strings in reverse order with each string backwards. (e.g. naP reteP ma I)Exercise 10: Pointers1. Write a program that reads 5 integers into an array, and then uses four different methods of acce
30、ssing the members of an array to print them out in reverse order.2. Write a program that reads 8 floats into an array and then prints out the second, fourth, sixth and eighth members of the array, and the sum of the first, third, fifth and seventh, using pointers to access the members of the array.3
31、. Write a program that use a SINGLE FUNCTION （用一个函数）to find and return simultaneously both the lowest and highest values in an array of type int. Suppose the size of the array is 6. Exercise 11: Files1. Write a program that enters the name and the annual salary of 5 employees from the keyboard, calc
32、ulates the monthly salary of each employee assuming that tax is deducted at a flat rate of 20%. The program prints the name, the annual salary and the monthly payment (net) of each employee in a file. The program adds an employees number to each employee before printing the names and values: No. Emp
33、loyees Name Annual salary Monthly payment after tax2Write a program that builds a file with information for 20 towns. Each line in the file contains name of a town followed by the distance of the town from London in miles (an integer). 3Write a program reads the file created by the above program (in Question 2) and prints the names of the towns that are less than 100 miles from London to ANOTHER file.
