Answer / stephen

#include <iostream>
#include <string>
using namespace std;
char * reverse (char *); //function prototype
int length(char *); //function prptotype

int main()
{
int i;
char *str = new char[6], *rev = new char[6];
cin >> str;
strcpy(rev,reverse(str));

cout <<"Original "<< str << " reverse " << rev << endl;
free(str);
free(rev);
return 0;
}

int length(char *s)
{
int i;
for (i=0; *(s+i)!='\0' ; ++i);
return i;
}

char *reverse(char *s)
{
char *t;
int i, n;
n=length(s);
t = new char[n];
for (i=0; i<n; ++i)
{
*(t+i)=*(s+n-1-i);
}
*(t+i)='\0';

return t;
}

/*based off of answer 8 i took this an intialized the
pointers so that it would run, and switched it over to the
C++ standard output commands. His algorithm was correct, he
just forgot to setup the memory*/

Answer / stephen

#include <iostream>
#include <string>
using namespace std;
char * reverse (char *); //function prototype
int length(char *); //function prptotype

int main()
{
int i;
char *str = new char[6], *rev = new char[6];
cin >> str;
strcpy(rev,reverse(str));

cout <<"Original "<< str << " reverse " << rev << endl;
free(str);
free(rev);
return 0;
}

int length(char *s)
{
int i;
for (i=0; *(s+i)!='\0' ; ++i);
return i;
}

char *reverse(char *s)
{
char *t;
int i, n;
n=length(s);
t = new char[n]; //opps have to add 1 here or there
wont be room for a null!
for (i=0; i<n; ++i)
{
*(t+i)=*(s+n-1-i);
}
*(t+i)='\0';

return t;
}
//can only handle words 5 letters or less.
/*based off of answer 8 i took this an intialized the
pointers so that it would run, and switched it over to the
C++ standard output commands. His algorithm was correct, he

Answer / fgy

no ansawer

Answer / smbrd

&#65279;#include <iostream>

using namespace std;

void rev_str(char* str, int pos=-1, char c='\0'){
if(pos >= int(strlen(str)/2))
return;
if(c != '\0'){
str[strlen(str) - pos - 1] = str[pos];
str[pos] = c;
}
rev_str(str, ++pos, str[strlen(str) - pos - 2]);
}

int main(){
char str[] = "reverse this string";
cout << str << endl;
rev_str(str);
cout << str << endl;
//:~
return 0;
}

Answer / mahesh auti

#include<stdio.h>
#include <string.h>

char * reverse (char *); //function prototype
int length(char *); //function prptotype

void main()
{
int i;
char *str, *rev;
clrscr();
gets(str);
strcpy(rev,reverse(str));

printf("Original %s Reverse %s", str, rev);
free(str);
free(rev);
getch();
}

int length(char *s)
{
int i;
for (i=0; *(s+i)!='\0' ; ++i);
return i;
}

char *reverse(char *s)
{
char *t;
int i, n;
n=length(s);
for (i=0; i<n; ++i)
{
*(t+i)=*(s+n-1-i);
}
*(t+i)='\0';
printf("\nOUT: %s\n", t);
return t;
}

Answer / shivaraj

main()
{
char str[10];
cin>>str;
int len=strlen(str);
reverse(len);
cout<<"Reversed string is: "<<str;
}

void reverse(int len)
{
static int i=0;
str[i]=str[len-1]; //put the char in last pos to first pos
for(j=len-1;j>i;j--)
str[j]=str[j-1]; //shift to right
i++;

if(i==len)
return;

reverse(len);
}

Answer / rafael christ

#include <iostream>


using namespace std;


char* reverse_str(char* s)
{
char* reverse = new char[1];
//char* reverse;


int i;

if(*s != '\0')
reverse = reverse_str(s+1);

i = strlen(s) - 1;

if (i >= 0)
reverse[i] = s[0];

return reverse;
}


int main(void)
{
char* str = "tsirhc oraivur odraude leafar";


cout << "original:" << endl;
cout << str << endl << endl;

cout << "reversed:" << endl;
cout << reverse_str(str) << endl;

return 0;
}

Answer / asdf

void reverse_string(char *string) {

if (*str) {
reverse_string(++str);
str--;
printf("%c",*str);
}

Answer / moinom

#include <iostream>
#include <conio>

void reverse(char a[], int s, int sc );

void reverse(char a[], int s, int sc ){

if ((sc-s)<(s-1))
{
a[sc-s]^=a[s-1];
a[s-1]^=a[sc-s];
a[sc-s]^=a[s-1];
reverse (a, s-1, sc) ;

}

}

void main (){


char a[]="ABCDEFG";

reverse(a, 7, 7);
cout<<a;
getch(); //i just use it to freeze the screen

}

Answer / boomer

void Rstring( char *str,int len)
{
for(int i = 0; i < (len/2); i++)
{
str[i] ^= str[len-i-1];
str[len-i-1] ^= str[i];
str[i] ^= str[len-i-1];
}
}

int main( void )
{
char str[] = "my string";
printf("Actual string is [%s]\n", str);
Rstring(str,strlen(str));
printf("Reversed string is [%s]\n", str);

}

I dont call this swaping, coz it's not, recursive creates
new incarnations of the reverse func, EXTRA MEMORY BIG
TIME!!!

in malloc and calloc which one is fast and why?

1 Answers  

CAN ANYONE PLEASE HELP ON THIS PROGRAM FOR MY EXAM..TQ Write a C program to help a H’s Restaurant automate its breakfast billing system. Your assignment should implement the following items: a. Show the customer the different breakfast items offered by the H’s Restaurant. b. Allow the customer to select more than one item from the menu. c. Calculate and print the bill to the customer. d. Produce a report to present your complete program and show more sample output. Assume that the H’s Restaurant offers the following breakfast menu: Plain Egg $2.50 Bacon and Egg $3.45 Muffin $2.20 French Toast $2.95 Fruit Basket $3.45 Cereal $0.70 Coffee $1.50 Tea $1.80 Your program must do the following task below: a. Define the data structs, menu item types with two components: menu item of type string and menu price of type double. Use an array to declare the data structs. b. Function get data to loads the data into the array menu list. c. Function show menu to show the different breakfast items offered by the restaurant and tell the user how to select the items. d. Function print receipt to calculates and prints the customer receipt. The billing amount should include a 5% tax. e. Format your output with two decimal places. The name of each item in the output must be left-justify. You may assume that the user selects only one item of a particular type. f. The two sample output as shown: Welcome to HiFi’s Restaurant 1 Bacon and Egg $3.45 1 Muffin $2.20 1 Coffee $1.50 Tax 5% $0.35 Amount Due $7.50

1 Answers  

the factorial of non-negative integer n is written n! and is defined as follows: n!=n*(n-1)*(n-2)........1(for values of n greater than or equal to 1 and n!=1(for n=0) Perform the following 1.write a c program that reads a non-negative integer and computes and prints its factorial. 2. write a C program that estimates the value of the mathematical constant e by using the formula: e=1+1/!+1/2!+1/3!+.... 3. write a c program the computes the value ex by using the formula ex=1+x/1!+xsquare/2!+xcube/3!+....

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write a program wch produces its own source code aas its output?

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Explain what is the concatenation operator?

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How pointers are declared?

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write a program to find the frequency of a number

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Why c is known as a mother language?

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int far *near * p; means

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