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Write a class SequenceCount with a public method sequenceCount that takes one parameter arr of type int[] and returns the count of sequences present in the arr. The return type of sequenceCount should be int

Write a class SequenceCount with a public method sequenceCount that takes one parameter arr of type int[] and returns the count of sequences present in the arr. The return type of sequenceCount should be int.

Assumptions:

  1. arr is never null
  2. arr may contain zero or more sequences

A sequence is defined as a combination of three numbers in continuous sequence which are of values: 1x, 2x, 3x.

Here are some examples for your understanding:

Cmd Args : 9 7 3 6 9
1
Cmd Args : 2 6 8 2 1
0
Cmd Args : 10 20 30 1 2 3
2

Solution:

package q11064;
public class SequenceCount {
 public int sequenceCount(int[] arr) {
    //Write your code here
    int count=0, i =0;
    while(arr != null && i<arr.length-2){
        if( (arr[i+1] == 2*arr[i]) && (arr[i+2] == 3*arr[i])){
            count++;
            
        }
        i++
        
    }
    return count;
}
}

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