In Bioinformatics, a DNA sequence is made up of a
combination of 4 characters, namely “A,C,G,T”. A
subsequence of a given sequence of characters a0, a1, …an-
1, is any subset of the characters taken in order, of the
form ai0 , ai1 ,…..aik-1 where 0 ≤ i0 <i1….< ik-1 ≤ n-1.
For example in the sequence “A,C,G,T,G,T,C,A,A,A,A,T,C,G”,
we can have subsequences “A,G,T”, “A,C,A,A” and many more.
A subsequence is palindromic if it is the same whether read
left to right or right to left. For instance, the
sequence “A,C,G,T,G,T,C,A,A,A,A,T,C,G”, has many
palindromic subsequences, including “A,C,G,C,A”
and “A,A,A,A” (on the other hand, the subsequence “A,C,T”
is not palindromic). Devise an algorithm (using dynamic
programming) that takes a sequence of characters X[0 … n-1]
from the alphabet set (A,C,G,T) and returns the (length of
the) longest palindromic subsequence. Implement the
algorithm in an appropriate language.
Answer / pragnesh
import java.io.*;
import java.util.*;
public class p3{
public static void main(String[] args) throws
FileNotFoundException{
Scanner inFile = new Scanner(new FileReader("words.txt"));
String s;
String temp, tempRev="";
while(inFile.hasNext()){
s=inFile.nextLine();
temp=s;
temp = temp.replace("?","");
temp = temp.replace(".","");
temp = temp.replace(",","");
temp = temp.replace(":","");
temp = temp.replace("\"","");
temp = temp.replace(" ","");
for(int x=temp.length()-1;x>=0;x--)
tempRev = tempRev + temp.charAt(x);
if(temp.equalsIgnoreCase(tempRev))
System.out.println(s + " is a palindrome");
else
System.out.println(s + " is not a palindrome");
tempRev="";
}
inFile.close();
}
}
maybe you could adapt that to c++
| Is This Answer Correct ? | 0 Yes | 2 No |
I am looking for NIC Sample papers or any patern of questions/ syllabus plz, send me on hamid.khan135@yahoo.in Regard
Can anyone send me NIC question papers alongwith answers on nidhi1485@yahoo.co.in? Urgently needed.. Thanks in advance
Diff between IF and where ?
Why did you ever become involved in QA/testing?
hi This is radhika.Can anyone help me to know the question papers of NATIONAL INFORMATICS CENTRE for the post of scientific officer/engineer? if anyone know plz tell me question paper pattern
How to get the index of the clicked field in reports in ABAP?
Write a program to reverse a number?
In project we have Documentation phase also,in that what is micro and macro designing?
how will you code the subfile which is in editing mode (multiple case subfile)?
what is difference between VB5 AND VB6.0
What is the difference between in-proc and out-of-proc?
Write a pascal program to calculate the sum of the first 100 even number and odd number