/* To reverse the given string using pointer By $ */
#include <stdio.h>
#include <string.h>
void main ()
{
char str[15];
char rev[15];
int i;
int count;
char* p;
gets(str);
count = strlen(str);
p = rev + strlen(str)-1;
for(i = 0; i < count; i++)
{
*(p - i) = *(str + i);
}
rev[count]='\0';//in some compilers it may show error show u can make it NULL
/* verify results */
printf("Original string: %s\n",str);
printf("Reversed string: %s\n",rev);
}
The use of the reverse string in C program is used to reverse the letters in the string. An example would be reverse me would be reversed to em esrever.
To reverse a number, first convert the number to a string, then reverse the string. Given your number consists of alphanumeric characters, the number must already be a string so simply reverse the string: #include<string> using std::string; string reverse (const string& s) { string str {}; for (auto c : s) str.insert (str.begin(), c); return str; } int main () { std::cout << "Enter a number: "; string s {}; std::cin >> s; std::cout << "The number in reverse is: " << reverse (s); }
a string constant
wefwfe
Assume C#, not C: Traditional way: public string Reverse(string s) { if (string.IsNullOrEmpty(s)) return s; // "" or null char[] characters = s.ToCharArray(); Array.Reverse(characters); return new string(characters); } or as an extension method: public static string Reverse(this string s) { if (s == "") return ""; char[] characters = s.ToCharArray(); Array.Reverse(characters); return new string(characters); } The differences of the 2 methods above is on the caller (how to use Reverse()), and they may co-exist: For example: string test = "abc"; string result1 = Reverse(test); // traditional way string result2 = test.Reverse(); // call the extension
The use of the reverse string in C program is used to reverse the letters in the string. An example would be reverse me would be reversed to em esrever.
To reverse a number, first convert the number to a string, then reverse the string. Given your number consists of alphanumeric characters, the number must already be a string so simply reverse the string: #include<string> using std::string; string reverse (const string& s) { string str {}; for (auto c : s) str.insert (str.begin(), c); return str; } int main () { std::cout << "Enter a number: "; string s {}; std::cin >> s; std::cout << "The number in reverse is: " << reverse (s); }
The reverse of a regular language is regular because for every string in the original language, there exists a corresponding string in the reversed language that is also regular. This is because regular languages are closed under the operation of reversal, meaning that if a language is regular, its reverse will also be regular.
a string constant
wefwfe
Assume C#, not C: Traditional way: public string Reverse(string s) { if (string.IsNullOrEmpty(s)) return s; // "" or null char[] characters = s.ToCharArray(); Array.Reverse(characters); return new string(characters); } or as an extension method: public static string Reverse(this string s) { if (s == "") return ""; char[] characters = s.ToCharArray(); Array.Reverse(characters); return new string(characters); } The differences of the 2 methods above is on the caller (how to use Reverse()), and they may co-exist: For example: string test = "abc"; string result1 = Reverse(test); // traditional way string result2 = test.Reverse(); // call the extension
To print a reverse string in C#, you can use the Array.Reverse method or LINQ. Here's a simple example using Array.Reverse: string original = "Hello, World!"; char[] charArray = original.ToCharArray(); Array.Reverse(charArray); string reversed = new string(charArray); Console.WriteLine(reversed); This code converts the string to a character array, reverses the array, and then creates a new string from the reversed array before printing it.
#include #include #include int reverse(int i);char st[]="ven123kat";void main() {printf("\nThe string is: %s", st);reverse(0);printf("\nReversed string is: %s", st);getch();}int reverse(int i) {if (i
special character in c language are as follows~ ' ! @ # % ^ & * () _ - + = | \ {} [] : ; " <> , . ? /
its just like a string of c++
I'd use sprintf (assuming the number wasn't a string already) and pointers. If that's not enough of a clue, you're really not ready to be in this programming class.
Use the atoi() or atol() function.