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] 6. char* cptr; "abcde"; 7. 8. // WRITE YOUR CODE HERE
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please write in C
![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;
wwww
7.
8. // WRITE YOUR CODE HERE](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1ef4262d-81a4-44ee-ba4d-6c00513edc04%2F1453adb4-c90d-4a45-b7e0-eff804056841%2Fa9fax8h_processed.png&w=3840&q=75)
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- 1: This program demonstrates the use of pointers. What is the output of this program? Assume we know that the initial address of x is 0012FF44. #include <iostream> using namespace std; int main() { int x=25; int *ptr; // pointer ptr=&x; cout<<x<<endl; cout<<*ptr<<endl; cout<<ptr<<endl; //Now we assign 100 to x *ptr=100; cout<<endl; cout<<"Now we assign 100 to x:"<<endl; cout<<x<<endl; cout<<*ptr<<endl; cout<<ptr<<endl; return 0; } Write down the output:1. A.Write a program for displaying the string declared in an array, str[] = "hello",in reverse order of characters using pointers. B.Write a program for initializing from another vector that will output 10 20 30i want to swap the value of 5.34 to 2.0 in the latter part what should I do? thank you in advance for your idea and help #include <stdio.h>#include <stdlib.h> int main()//MAIN{ char c_1920213 = 'A'; char *pcc_1920213 = &c_1920213; /* pc points to c*/ double dc_1920213 = 5.34; double *pd1c_1920213, *pd2c_1920213; printf("VALUE OF C BEFORE POINTER: %c", *pcc_1920213); *pcc_1920213 = 'B'; /* Dereferenced pointer: c is now equal to 'B'. */ printf("\nVALUE OF C AFTER POINTER: %c \n", *pcc_1920213); pd1c_1920213= &dc_1920213; /* pd1 points to d */ printf("VALUE OF pd1 BEFORE POINTER: %lf ", *pd1c_1920213); pd2c_1920213= pd1c_1920213; /*pd2 and pd1 now both point to d */ printf(" \nVALUE OF pd1 AFTER POINTER: %lf ", *pd1c_1920213); *pd1c_1920213 = *pd2c_1920213 *2.0; /* equivalent to d = d * 2.0; */ }
- The following Python code is a partially written function that attempts to read a file's contents into a dictionary. Fill in the missing code in the make_dictionary function. You do not need to copy any of the existing code. Just write the code that would go in place of "YOUR CODE HERE". def make_dictionary(filename):'''Function -- make_dictionaryCreates a dictionary from a file's contents. Each line in the file is split into a list at commas.If, after splitting, the list contains exactly 2 parts,the first item is added to the dictionary as a keyand the second item is the value. If the providedfile doesn't exist, the message "File doesn'texist" is printed to the terminal and anempty dictionary is returned.Parameter:filename -- The name of the file to open.Returns:A dictionary of the file's contents, if thefile matches the expected format. Otherwise, anempty dictionary is returned.'''contents = {}# YOUR CODE HEREreturn contents Example If the contents of the file passed to the function…#include <stdio.h>int main() {long local;int (*mainptr)(void); /* declare a "pointer to function returning int" */mainptr = main; /* address of main */printf("%p,%p\n",&local,mainptr); /* print the two addresses */return 0;}The printf statement outputs the address of the variable “local”, which should be on the stack rightafter the return address, and then the address of the code for “main”.Start by creating a source file aslrtest.c on your VM containing the above C program. Compileit into an executable with the same name:bash$ gcc -o aslrtest aslrtest.c(As always, the “bash$” in the above represents the prompt and is not part of the command youtype.)a. Turn off ASLR with the command:echo 0 | sudo tee /proc/sys/kernel/randomize_va_spaceOnce you have ASLR disabled, run aslrtest 10 times. The following shell script will do that,(assuming your shell is bash, which it is unless you’ve changed it yourself):bash$ for i in {1..10}> do> ./aslrtest> doneWhat range of output…• R7.21Find the mistakes in the following code. Not all lines contain mistakes. Each line depends on the lines preceding it. Watch out for uninitialized pointers, nullptr pointers, pointers to deleted objects, and confusing pointers with objects. 1 int* p = new int; 2 p = 5; 3 *p = *p + 5; 4 string s = "Harry"; 5 *s = "Sally"; 6 delete &s; 7 int* a = new int[10]; 8 *a = 5; 9 a[10] = 5; 10 delete a; 11 int* q; 12 *q = 5; 13 q = p; 14 delete q; 15 delete p;
- USING FILE POINTERS IN C PLEASE . Write a program that prints a table of all the Roman numeral equivalents of the decimal numbers in the range 1 to 50. Knowing that the roman numbers (from 1 to 10) are as follows: I, II, III, IV, V, VI, VII, VIII, IX, X. Note that 50 is represented by L. COMMENT ALL OF YOUR STEPSConsider the following code: int main() { char *s = strdup("This is a test"); char *d = " "; while (s) { char *token = strsep(&s, d); puts(token); } free(s); return 0;} Which of the following causes an error or segmentation fault? A. free is called on a pointer that was not malloc'ed B. strsep must be called with s instead of &s C. The while loop is an infinite loop D. The string s points to is in read-only memory E. Something elseProblem 8. What is the correct syntax of declaring array of pointers of integers of size 10 in C++? a) int arr = new int[10]; b) int **arr = new int*[10]; c) int *arr = new int[10]; d) int *arr = new int*[10];
- 2. Searches for any number within the sorted list using Binary search. Searches for any number that is not exist in the sorted list. Use exception handling to print out the corresponding error messageAssume aa is a pointer of int type, and has been allocated enough memory : int* aa = new int; Which line assign value 10 by using dereference and then release the memory correctly? Question 19 options: A. aa = 10; delete aa*; B. *aa = 10; delete aa; C. *aa = 10 delete []aa; D. aa = 10; delete [] aa;write C++ statements that perform the specified task. Assume that unsigned integers are stored in four bytes and that the starting address of the built-in array is at location 1002500 in memory. " Write two separate statements that assign the starting address of built-in array values to pointer variable vPtr ."