How to swap two variables, without using third variable ?
Answer Posted / perl guru
($a,$b)=($b,$a)
....this is how we do in PERL....Ha Ha Ha pretty cool !!!!
And BELIEVE me it works not only for NUMBERS but also for
STRINGS, ARRAYS or any Data Structure or any garbage
value....this is mine Challenge.....
None of the any programming language can come close to PERL
in this much of SIMPLICITY and ROBUSTNESS....just one line
does the Magic....
Again I would say the Question itself is very silly one "How
to swap two variables, without using third variable
?"....and I see alot of stupid Answers posted here....
Everyone posting the answer is assuming that Question is
about swapping INTEGER NUMBERS....I would like to ask what
if I provide FLOATING POINT NUMBERS, NEGATIVE NUMBERS, REAL
NUMBERS, and surely it does not work for STRINGS....
That is why I say "Perl is immensely powerful. If you think
something can't be done, the problem is likely to be it is
beyond your ability, not that of Perl."
Welcome to the world of PERL....its more precious than PEARL....
| Is This Answer Correct ? | 4 Yes | 1 No |
Post New Answer View All Answers
Write a routine to implement the polymarker function
Given a spherical surface, write bump-mapping procedure to generate the bumpy surface of an orange
how to programme using switch statements and fuctions, a programme that will output two even numbers, two odd numbers and two prime numbers of the users chioce.
To Write a C program to remove the repeated characters in the entered expression or in entered characters(i.e) removing duplicates. String contains only lowercase characters ['a'-'z']
write a simple calculator c program to perform addition, subtraction, mul and div.
Sir... please give some important coding questions asked by product companies..
why do you use macros? Explain a situation where you had to incorporate macros in your proc report? use a simple instream data example with code ?
how to create a 3x3 two dimensional array that will give you the sums on the left and bottom columns
I need your help, i need a Turbo C code for this problem.. hope u'll help me guys.? Your program will have a 3x3 array. The user will input the sum of each row and each column. Then the user will input 3 values and store them anywhere, or any location or index, temporarily in the array. Your program will supply the remaining six (6) values and determine the exact location of each value in the array. Example: Input: Sum of row 1: 6 Sum of row 2: 15 Sum of row 3: 24 Sum of column 1: 12 Sum of column 2: 15 Sum of column 3: 18 Value 1: 3 Value 2: 5 Value 3: 6 Output: Sum of Row 1 2 3 6 4 5 6 15 7 8 9 24 Sum of Column 12 15 18 Note: Your program will not necessary sort the walues in the array Thanks..
Write a Program in 'C' To Insert a Unique Number Only. (Hint: Just Like a Primary Key Numbers In Database.) Please Some One Suggest Me a Better Solution for This question ??
What is the match merge ? compare data step match merge with proc sql merge - how many types are there ? data step vs proc sql
Write a program to model an exploding firecracker in the xy plane using a particle system
Hi, i have a project that the teacher want a pyramid of numbers in C# or java...when we click a button...the pyramid should be generated in a listbox/or JtextArea...and the pyramid should have the folowing form: 1 232 34543 4567654 567898765 67890109876 7890123210987 890123454321098 90123456765432109 0123456789876543210 Plz help with codes...didn't find anything on the net.
Design an implement of the inputs functions for event mode
What is data _null_? ,Explain with code when u need to use it in data step programming ?
