编程基础代写 ESE 124代写 实验代写

Lab Activity 11 

ESE 124 (Programming Fundamentals)

编程基础代写 1.Pointers (60 minutes)1.(Acknowledgement: This exercise is posted at http://www.gi.ce.t.kyoto-u.ac.jp/user/susaki/c_eng/pointer_e.html)

1.Pointers (60 minutes)  编程基础代写

1.(Acknowledgement: This exercise is posted at http://www.gi.ce.t.kyoto-u.ac.jp/user/susaki/c_eng/pointer_e.html) We want to show a string repeatedly by shifting the top character of the string to the right. Refer to a below execution example. Write a below source code, complement the expression hidden by “******” to meet this requirement. Confirm whether it can execute properly.

2.  #include <stdio.h>
3.
4.  int main(void)
5.  {
6.    char  str[20], *p;
7. 
8.    printf("Input about 10 characters of string\n");
9.    scanf("%s",str);
10.
11.     // Pointer variable refers to address of string
12.     *****************************
13.     *****************************
14. 
15.     // Show string by shifting top character of string to right
16.     *****************************
17.     *****************************
18.     *****************************
19.     *****************************
20.
21.     return (0);
22.    }
23.   (Execution example)
24.   $ ./a.out
25.   Input about 10 characters of string
26.   abcd1234EFGH
27.   abcd1234EFGH
28.   bcd1234EFGH
29.   cd1234EFGH
30.   d1234EFGH
31.   1234EFGH
32.   234EFGH
33.   34EFGH
34.   4EFGH
35.   EFGH
36.   FGH
37.   GH
38.   H
39.
40.   $

2.(Acknowledgement: This exercise is presented at https://condor.depaul.edu/ntomuro/courses/309/notes/pointer_exercises.html): Write code which prints the characters in a string in a reverse order.

5. char s[10] = "abcde";
6. char* cptr;
7.
8. // WRITE YOUR CODE HERE

3.(Acknowledgement: This exercise is presented at https://condor.depaul.edu/ntomuro/courses/309/notes/pointer_exercises.html): Write a function that returns a pointer to the maximum value of an array of double.

2.struct type (1 hour and 30 minutes)  编程基础代写

Implement the following C program.

1. The program reads a text file that has the following structure. The first row includes the number of following rows in the file. Then, every line of the text file includes the following information: first name (string) last name (string) zip code (integer) age (integer) GPA (float). Write a C function that reads the input file and stores the information for each person in a dynamically created array of struct elements.
2. Write a C function that displays the content of the array storing the input file.
3. Write a C function that orders the array in the decreasing order of the person’s GPA.
4. Write a C function that orders the array in alphabetic order of the person’s last name.
5. Write a C function that reads a zip code from the keyboard and then displays all the persons with this zipcode.
6. Write a main program that repeatedly reads and implements the following commands: D for the function at step 2; O for the function at step 3; A for the function at step 4; Z for the function at step 5.

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