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Which of the data structures is most efficient in terms of both space and time to reverse a string characters?
Wiki User
∙ 12y ago
stack
Wiki User
∙ 12y ago
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What data structures is most efficient in terms of both space and time to reverse a string of characters?
Stack
How do you get value of a string in reverse order in c?
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
What is the complexity of reverse the input string using stack?
O(n*2) for n characters. It is more efficient to simply walk from both ends of the string, swapping characters as you go, reducing the complexity to just O(n/2).
How do you convert a number that consist of alphabet and number in reverse order?
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); }
What is the use of Reverse String in C program?
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.
How do you create a string and reverse a string in vb?
gov
How do you reverse a string in PHP?
A predefined function can reverse a string as shown below:echo strrev('pizza'); // outputs: azzip
What elements are in string?
A string is an array of characters.
How to write a program in python to print the reverse of a number?
In python, type the following into a document. NOTE: Sentences following a # symbol are comments, and are not necessary for the program to run. #!/usr/bin/python #This program takes a input from a user and reverses it. number = input("Type a number: ") #This takes input from a user. a = len(number) #This finds the length of the number reverse = "" #This sets the variable reverse to an empty string. for i in number: a = a-1 #The places in a string start from 0. The last value will be the length minus 1.reverse = reverse + number[a] #Makes the number's last digit the new string's first. print("The reverse of", number, "is", reverse + ".") #prints the resulting string. This program will take any sequence of characters and reverse them. The final value is a string, but if an integer is needed, one needs only to add the line reverse = int(reverse) above the print statement. However, this will stop the program from being able to reverse strings, as it is not possible to convert a string to an integer if it is not a number.
How do you Print all the first characters in the string in python programming?
Let's say your string is a variable called "string" To print out all the characters in order, you would do: for i in string: print(string[i]) If you wanted to print out characters up to a point (n = maximum characters): for i in range(n): print(string[i]) hope this helps!
How do you write string in reverse through the HTML tags?
Not possible through html. Use php strrev function. For eg:
Reverse of a string without using string handling function?
shashi
