Shell script for combinations ncr, Programming Languages

Assignment Help:

 Find nCr.

 Program

echo -e  "Enter n: \c"

read n

echo -e "Enter r: \c"

read r

i=2

nf=1

temp=`expr $n - $r`

tf=1

rf=1

ncr=1

while test $i -le $n

do

   nf=`expr $nf\*$i`

   i=`expr $i + 1`

done

 

nf=`echo "$nf" | bc`

i=2

while test $i -le $temp

do

  tf=`expr $tf\*$i`

  i=`expr $i + 1`

done

tf=`echo "$tf" | bc`

 

i=2

while test $i -le $r

do

  rf=`expr $rf\*$i`

  i=`expr $i + 1`

done

rf=`echo "$rf" | bc`

temp2=`echo "$nf / $tf" | bc`

ncr=`echo "$temp2 / $rf" | bc`

echo "nCr = $ncr"


Output

sh ncr.sh

Enter n: 5

Enter r: 4

nCr = 5

 

sh ncr.sh

Enter n: 9

Enter r: 4

nCr = 126

 

sh ncr.sh

Enter n: 12

Enter r: 5

nCr = 792


Related Discussions:- Shell script for combinations ncr

Exception Handling in c++, Exception handling Exception handling is a mech...

Exception handling Exception handling is a mechanism that separates code that detects and handles exceptional circumstances from the rest of your program. Note that an exceptional

Program 3, An apartment complex has several apartments to rent. The apartme...

An apartment complex has several apartments to rent. The apartments are all similar, and all rent for $750 per month. Currently, all units are occupied. The management, being in bu

Maze game, The Maze Game from Laboratory 7 loads its maze directly in the p...

The Maze Game from Laboratory 7 loads its maze directly in the program's code. This should be avoided as it requires the program to be recreated if the maze needs to be changed. In

Genetic algorithm, I need help I want to implement the Genetic Algorithm f...

I need help I want to implement the Genetic Algorithm for Shortest path Kindly Help me I will be thankful to you

Python: returning one dimensional list from strings , How to build one dime...

How to build one dimensional list from string and build string from a list? Suppose input string is: STACKOVERFLOW then the output list should be outputList = [S,T,A,C,K,O,V,E,R,F

Shell script, find value of nCr using function

find value of nCr using function

Program which prints odd or even according to user input, Note: You should ...

Note: You should pay attention on following good practices: Appropriate code comments(If you make any assumptions clearly comment them in the code) Indentation

Language processors, explain steps of program execution in language process...

explain steps of program execution in language processors

Code a simulation of image compression , Your task will be to code a simula...

Your task will be to code a simulation of image compression based on the approximate low rank structure of the set of image patches. You will write functions .code = my block compr

Write your own version of the strcmp function string_compare, Write your ow...

Write your own version of the strcmp function string_compare. Supply a main program that will test each of the 3 differing outcomes. int string_compare(char *s, cha

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd