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TCS.java
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TCS.java
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package interview;
import java.io.*;
public class TCS {
public static int getCountBits(int i){
int count=0;
while(i > 0){
count+= i & 1;
i>>=1;
}
return count;
}
public static void main(String[] args)throws IOException {
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
int T=Integer.parseInt(br.readLine());
String y[]=br.readLine().split(",");
int A[]=new int[y.length];
int INVERSIONS=0;
for(int i=0;i<y.length;i++)
A[i]=getCountBits(Integer.parseInt(y[i]));
for(int i=0;i<A.length-1;i++){
for(int j=i+1;j<A.length;j++){
if(A[i]>A[j])
INVERSIONS+=1;
}
}
System.out.println(INVERSIONS);
}
}