Write a c program to convert binary number to hexadecimal number. C program for addition of binary numbers. C program for multiplication of two binary. U1KvGkievxg/UiswaTVw_eI/AAAAAAAADC0/usvjKGjDUdc/s1600/550px-Convert-from-Binary-to-Decimal-Step-1.jpg' alt='Number To Words Java Program' title='Number To Words Java Program' />Hex Words and Upside Down Number Words. Hex Words and Upside Down Number Words. This is just a little something I was playing with one day. I was wondering how I would write a method to count the number of words in a java string only by using string methods like charAt, length, or substring. Loops and if. I was trying to think of some words I could make with just the letters used in hexadecimal notation abcdef, and it occurred to me that I could just write a short program to extract those words from a dictionary. So I downloaded the Word. Net dictionary and wrote this little Java program to run through the index files and pull out all the relevant words. I ended up with two lists one that had words with only the letters abcdef, and one that also had the letters lisoz where you could substitute the numbers 1l,i 5s 2z 0o. The lists are below. While I was at it, I made a slight modification to the program so that it pulled out all of the words that could be made with upside down numbers. Remember how you used to write words on your calculator back in school by entering numbers and then turning the calculator upside down like 0. Okay, maybe not, but I used to do that. I only knew a few words at the time, but now thanks to the magic of modern computers, I was able to generate a more complete list. I have two lists for this as well, because it used to be that you would substitute the number 4 for the letter h, but if youre doing this on a computer or a pager, many of the modern fonts close the apex of the 4, so it looks a lot less like an h than it used to. Hex Words using only abcdefHex Words using abcdef plus lisoz, where 1l,i 5s 2z 0o. AA aas AA5 ab AB aba ABA abaca ABACA abase ABA5. E abasia ABA5. 1A abasic ABA5. C abbe ABBE abbess ABBE5. ABC abcs ABC5 abdicable ABD1. CAB1. E abed ABED abel ABE1 abele ABE1. E abelia ABE1. 1A abide AB1. DE abies AB1. E5 abila AB1. A ablaze AB1. A2. E able AB1. E abls AB1. AB0 abode AB0. DE abscess AB5. CE5. 5 abscessed AB5. CE5. 5ED abscise AB5. C1. 5E abscissa AB5. C1. 55. A abseil AB5. E1. 1 ac AC acacia ACAC1. A acadia ACAD1. A accede ACCEDE access ACCE5. ACCE5. 51. B1. E accolade ACC0. ADE ace ACE acedia ACED1. A acid AC1. D acidic AC1. D1. C acidosis AC1. D0. 51. 5 acold AC0. D ad AD ada ADA adad ADAD adalia ADA1. A add ADD addable ADDAB1. E added ADDED addible ADD1. B1. E addle ADD1. E addled ADD1. ED ade ADE adelaide ADE1. A1. DE adelie ADE1. E adios AD1. 05 ado AD0 adobe AD0. BE adobo AD0. B0 adolesce AD0. E5. CE adz AD2 adze AD2. E aec AEC aecial AEC1. A1 aedes AEDE5 aeolia AE0. A aeolic AE0. 11. C aeolis AE0. 11. AFFAB1. E afield AF1. E1. D afl AF1 ai A1 aid A1. D aide A1. DE aided A1. DED aides A1. DE5 aids A1. D5 ail A1. 1 aioli A1. A1. 51. E aizoaceae A1. ACEAE al A1 ala A1. A alalia A1. A1. A alas A1. A5 alb A1. B albedo A1. BED0 albee A1. BEE albizia A1. B1. 21. A albizzia A1. B1. 22. 1A alca A1. CA alcaic A1. CA1. C alcea A1. CEA alcedo A1. CED0 alces A1. CE5 alcibiades A1. C1. B1. ADE5 alcidae A1. C1. DAE alcides A1. C1. DE5 aldol A1. D0. 1 aldose A1. D0. E ale A1. E alee A1. EE alfalfa A1. FA1. FA ali A1. 1 alias A1. A5 alibi A1. 1B1 alidad A1. DAD alidade A1. DADE all A1. A1. E1. E allelic A1. E1. 1C alliaceae A1. ACEAE allice A1. CE allied A1. ED allies A1. 11. E5 allis A1. 11. A1. CAB1. E alocasia A1. CA5. 1A aloe A1. E aloeaceae A1. EACEAE aloes A1. E5 aloof A1. F alosa A1. 05. A als A1. A1. ACE also A1. 50 alsobia A1. B1. A as A5 ascidiaceae A5. C1. D1. ACEAE ascii A5. C1. 1 asdic A5. D1. C asia A5. 1A aside A5. Gta V Save Editor Xbox 360. DE asilidae A5. DAE asio A5. A5. A5. 0C1. A1 ass A5. A5. 5A1. 1 assailable A5. A1. 1AB1. E assess A5. E5. 5 assessable A5. E5. 5AB1. E assize A5. E assizes A5. 51. E5 associable A5. C1. AB1. E assoil A5. A2 azalea A2. A1. EA azide A2. 1DE azido A2. D0 azo A2. 0 azoic A2. C azolla A2. 01. A azollaceae A2. ACEAE ba BA baa BAA baal BAA1 baas BAA5 baba BABA babble BABB1. E babe BABE babel BABE1 babesiidae BABE5. DAE baboo BAB0. BACCA bacillaceae BAC1. ACEAE bacilli BAC1. BAD baddie BADD1. E bade BADE baeda BAEDA baffle BAFF1. E baffled BAFF1. ED bai BA1 baic BA1. C bail BA1. 1 bailable BA1. AB1. E bailee BA1. EE bailiff BA1. FF baiza BA1. A baize BA1. E balas BA1. A5 balboa BA1. B0. A bald BA1. D bale BA1. E bali BA1. BA1. 1 ballad BA1. AD ballade BA1. ADE balled BA1. ED balsa BA1. 5A balzac BA1. AC baobab BA0. BAB basal BA5. A1 base BA5. E baseball BA5. EBA1. 1 based BA5. ED basel BA5. E1 baseless BA5. E1. E5. 5 basia BA5. A basic BA5. 1C basics BA5. C5 basidial BA5. D1. A1 basil BA5. BA5. CA basis BA5. BA5. E bass BA5. BA5. 51. A basso BA5. BB bbl BB1 bbs BB5 bc BC bd BD be BE bead BEAD beaded BEADED beadle BEAD1. E beads BEAD5 bed BED beda BEDA bedaze BEDA2. E bedazzle BEDA2. E bedded BEDDED bede BEDE bedless BED1. E5. 5 bedside BED5. DE bee BEE beef BEEF beefalo BEEFA1. BEFA1. 1 befool BEF0. BE1 belie BE1. 1E belief BE1. EF belize BE1. 12. E bell BE1. 1 belle BE1. E bellicose BE1. C0. E bellied BE1. ED bellis BE1. BE5. 1DE5 bessel BE5. E1 bezel BE2. E1 bi B1 bias B1. A5 biased B1. A5. ED bib B1. B bibbed B1. BBED bible B1. B1. E bibless B1. B1. E5. 5 biblical B1. B1. 1CA1 bibos B1. B0. 5 bid B1. D bida B1. DA biddable B1. DDAB1. E bide B1. DE biface B1. FACE bifacial B1. FAC1. A1 biff B1. FF bifid B1. F1. D bifocal B1. F0. CA1 bifold B1. F0. D bilabial B1. AB1. A1 bile B1. 1E bill B1. B1. 11. ED billfold B1. F0. 1D bilobed B1. BED bise B1. 5E biz B1. B1. 2E blab B1. AB blade B1. ADE bladed B1. ADED blae B1. AE blase B1. A5. E blaze B1. A2. E bleb B1. EB blebbed B1. EBBED bleed B1. EED bless B1. E5. B1. E5. 5ED bliss B1. B1. 0B bloc B1. C blood B1. D blooded B1. 00. DED bloodied B1. D1. ED bloodleaf B1. D1. EAF bloodless B1. D1. E5. 5 boa B0. A bob B0. B bobble B0. BB1. E bobsled B0. B5. 1ED boccaccio B0. CCACC1. 0 bocce B0. CCE bocci B0. CC1 boccie B0. CC1. E bod B0. D bode B0. DE bodice B0. D1. CE bodied B0. D1. ED bodiless B0. D1. E5. 5 boidae B0. DAE boil B0. B0. ED boise B0. 15. E bola B0. 1A bold B0. D boldface B0. 1DFACE bole B0. E bolide B0. 11. DE boll B0. B0. B0. 0 boob B0. B booboisie B0. B0. E boodle B0. D1. E boole B0. E booze B0. 02. E bos B0. B0. C bose B0. 5E bosie B0. E boss B0. 55 bozo B0. B5 bse B5. E ca CA cab CAB cabal CABA1 cabala CABA1. A cabbala CABBA1. A cabell CABE1. CAB1. E caboodle CAB0. D1. E caboose CAB0. E cacalia CACA1. A cacao CACA0 cad CAD caddie CADD1. E caddo CADD0 cade CADE cadiz CAD1. CAECA1 caeciliidae CAEC1. DAE cafe CAFE caff CAFF calaba CA1. ABA calabazilla CA1. ABA2. 11. 1A calais CA1. A1. 5 calced CA1. CED calcic CA1. C1. C calcific CA1. C1. F1. C calf CA1. F cali CA1. CA1. C0 calif CA1. F call CA1. CA1. 1A callable CA1. AB1. E callas CA1. A5 called CA1. 1ED casaba CA5. ABA casals CA5. A1. CA5. CABE1 cascade CA5. CADE cascades CA5. CADE5 case CA5. E cased CA5. ED cassia CA5. A cassie CA5. E cbc CBC cc CC ccc CCC cd CD ce CE cease CEA5. E ceaseless CEA5. E1. E5. 5 cebidae CEB1. DAE cecal CECA1 cede CEDE cedi CED1 cedilla CED1. A cefobid CEF0. B1. D ceiba CE1. BA ceibo CE1. B0 celebes CE1. Program for Fibonacci numbers Geeksfor. Geeks. The Fibonacci numbers are the numbers in the following integer sequence. In mathematical terms, the sequence Fn of Fibonacci numbers is defined by the recurrence relation Fn Fn 1 Fn 2with seed values F0 0 and F1 1. Given a number n, print n th Fibonacci Number. Write a function int fibint n that returns Fn. For example, if n 0, then fib should return 0. If n 1, then it should return 1. For n 1, it should return Fn 1 Fn 2. For n 9. Output 3. Following are different methods to get the nth Fibonacci number. Method 1 Use recursion A simple method that is a direct recursive implementation mathematical recurrence relation given above. C. Fibonacci Series using Recursion. Fibonacci Series using Recursion. String args. System. This code is contributed by Rajat Mishra. Function for nth Fibonacci number. Fibonaccin. printIncorrect input. First Fibonacci number is 0. Second Fibonacci number is 1. Fibonaccin 1Fibonaccin 2. Driver Program. printFibonacci9. This code is contributed by Saket Modi. Output. 34. Time Complexity Tn Tn 1 Tn 2 which is exponential. We can observe that this implementation does a lot of repeated work see the following recursion tree. So this is a bad implementation for nth Fibonacci number. Extra Space On if we consider the function call stack size, otherwise O1. Method 2 Use Dynamic Programming We can avoid the repeated work done is the method 1 by storing the Fibonacci numbers calculated so far. C. Fibonacci Series using Dynamic Programming. Declare an array to store Fibonacci numbers. Add the previous 2 numbers in the series. Fibonacci Series using Dynamic Programming. Declare an array to store Fibonacci numbers. Add the previous 2 numbers in the series. String args. int n 9. System. out. printlnfibn. This code is contributed by Rajat Mishra. Function for nth fibonacci number Dynamic Programing. Taking 1st two fibonacci nubers as 0 and 1. Fib. Array 0,1. Incorrect input. Fib. Array. return Fib. Arrayn 1. tempfib fibonaccin 1fibonaccin 2. Fib. Array. appendtempfib. Driver Program. printfibonacci9. This code is contributed by Saket Modi. Output 3. 4Time Complexity OnExtra Space OnMethod 3 Space Optimized Method 2 We can optimize the space used in method 2 by storing the previous two numbers only because that is all we need to get the next Fibonacci number in series. CC. Fibonacci Series using Space Optimized Method. Java program for Fibonacci Series using Space. Optimized Method. String args. int n 9. System. out. printlnfibn. This code is contributed by Mihir Joshi. Function for nth fibonacci number Space Optimisataion. Taking 1st two fibonacci numbers as 0 and 1. Incorrect input. Driver Program. This code is contributed by Saket Modi. Time Complexity OnExtra Space O1Method 4 Using power of the matrix 1,1,1,0 This another On which relies on the fact that if we n times multiply the matrix M 1,1,1,0 to itself in other words calculate powerM, n, then we get the n1th Fibonacci number as the element at row and column 0, 0 in the resultant matrix. The matrix representation gives the following closed expression for the Fibonacci numbers C. Helper function that multiplies 2 matrices F and M of size 2, and. F. void multiplyint F22, int M22. Helper function that calculates F raise to the power n and puts the. F. Note that this function is designed only for fib and wont work as general. F22, int n. int F22 1,1,1,0. F, n 1. return F00. F22, int M22. F0000 F0110. F0001 F0111. F1000 F1110. F1001 F1111. F22, int n. M22 1,1,1,0. F, M. Driver program to test above function. F new int1,1,1,0. F, n 1. return F00. Helper function that multiplies 2 matrices F and M of size 2, and. F. static void multiplyint F, int M. F0000 F0110. F0001 F0111. F1000 F1110. F1001 F1111. F00 x. F01 y. F10 z. F11 w. Helper function that calculates F raise to the power n and puts the. F. Note that this function is designed only for fib and wont work as general. F, int n. int M new int1,1,1,0. F, M. Driver program to test above function. String args. System. This code is contributed by Rajat Mishra. Time Complexity OnExtra Space O1Method 5 Optimized Method 4 The method 4 can be optimized to work in OLogn time complexity. We can do recursive multiplication to get powerM, n in the prevous method Similar to the optimization done in this postC. F22, int M22. F22, int n. Fibonacci number. F22 1,1,1,0. F, n 1. F00. Optimized version of power in method 4. F22, int n. if n 0 n 1. M22 1,1,1,0. F, n2. F, F. F, M. void multiplyint F22, int M22. F0000 F0110. F0001 F0111. F1000 F1110. F1001 F1111. Driver program to test above function. Fibonacci Series using Optimized Method. Fibonacci number. F new int1,1,1,0. F, n 1. return F00. F, int M. F0000 F0110. F0001 F0111. F1000 F1110. F1001 F1111. F00 x. F01 y. F10 z. F11 w. Optimized version of power in method 4. F, int n. if n 0 n 1. M new int1,1,1,0. F, n2. multiplyF, F. F, M. Driver program to test above function. String args. int n 9. System. out. printlnfibn. This code is contributed by Rajat Mishra. Time Complexity OLognExtra Space OLogn if we consider the function call stack size, otherwise O1. Method 6 OLog n TimeBelow is one more interesting recurrence formula that can be used to find nth Fibonacci Number in OLog n time. If n is even then k n2. Fn 2k 1 Fkk. If n is odd then k n 12. Fn Fkk Fk 1k 1How does this formula work The formula can be derived from above matrix equation. Taking determinant on both sides, we get 1n Fn1. Fn 1 Fn. 2Moreover, since An. Am Anm for any square matrix A, the following identities can be derived they are obtained form two different coefficients of the matrix productFm. Fn Fm 1. Fn 1 Fmn 1. By putting n n1,Fm. Fn1 Fm 1. Fn Fmn. Putting m n. F2n 1 Fn. Fn 1. 2F2n Fn 1 Fn1Fn 2. Fn 1 FnFn Source WikiTo get the formula to be proved, we simply need to do following. If n is even, we can put k n2. If n is odd, we can put k n12. Below is the implementation of above idea. C. C Program to find nth fibonacci Number in. OLog n arithmatic operations. MAX 1. 00. 0. Create an array for memoization. MAX 0. Returns nth fuibonacci number using table f. Base cases. if n 0. If fibn is already computed. Applyting above formula Note value n 1 is 1. Driver program to test above function. Java Program to find nth fibonacci. Number with OLog n arithmetic operations. MAX 1. 00. 0. static int f. Returns nth fibonacci number using. Base cases. if n 0.