Write a function swap_halves(s) that takes a string s, and returns a new string in which the two halves of the string have been swapped solved Write a function swap_halves(s) that takes a string s, and returns a new string in which the two halves of the string have been swapped
I think you need something like this: // Make sure x is smaller than y if(x>y) { swap(&x, &y); } // Make sure x is smaller than z if(x>z) { swap(&x, &z); } // Now x is smaller than both y and z // Make sure y is smaller than z if(y>z) { swap(&y, &z); … Read more
Let’s try to explain *x = *y; without using the word “dereference”: *x represents the integer object pointed to by x. As it is the left operand of the assignment, it means that this integer object is going to be updated. *y represents the integer object pointed to by y. As it is the right … Read more
public static String swap (String entry){ char[] characters = entry.toCharArray(); if (entry.length() < 6){ return null; // cannot swap if length is under 6! } char tempchar; tempchar = characters[0]; characters[0] = characters[characters.length-1]; characters[characters.length-1] = tempchar; tempchar = characters[1]; characters[1] = characters[characters.length-2]; characters[characters.length-2] = tempchar; tempchar = characters[2]; characters[2] = characters[characters.length-3]; characters[characters.length-3] = tempchar; return … Read more
The void is a sub-process, it must be enclosed in braces and must not end in a semicolon. on the other hand as the community says int * temp = * p1; is a constaint violation, it must be int temp = * p1; Nor was exchanging values, it showed only as when they were … Read more
First you would need to create a Map of all the letters: Hashmap<String, String> map = new Hashmap<String, String>(); map.put(“a”, “c”); map.put(“b”, “f”); … To get the translation of each letter you simply get the value from the map: String translatedLetter = map.get(letter); So now you would need to create a loop to translate the … Read more
Using perl from command line, perl -ne ‘push @r, $_; print(@r[2,1,0,3]), @r=() if @r==4 or eof’ file solved Swap lines in a script by iteration over lines [closed]
There is no method for this in python. You can try using primitive methods to build what you want using lists. This code does the job: #!/usr/bin/python a = [] b = [] nums = raw_input(“Enter input- “) #append all to a list for n in nums.split(): n = int(n) if n < 0: break … Read more
There’s several problems with your code. First, the swap function doesn’t work. You’re swapping the values of the pointers that are local variables inside the function, you’re not swapping the array elements they point to. You need to indirect through pointers to get the values. int temp1 = *a; *a = *b; *b = temp1; … Read more
To pick out some key lines from you error In instantiation of ‘void std::swap(_Tp&, _Tp&) [with _Tp = Card]’: use of deleted function ‘Card& Card::operator=(Card&&)’ ‘Card& Card::operator=(Card&&)’ is implicitly deleted because the default definition would be ill-formed: non-static const member ‘const int Card::numFace’, can’t use default assignment operator You are trying to use std::swap with … Read more