not working only works for sample

peaks

class Solution {
    public int solution(int[] A) {
        // write your code in Java SE 8
        if(A.length<=2){
            return 0;
        }
        int []peak=getPeaks(A);
        int blocks=0;
        for(int blk=1;blk<A.length;blk++){
            int index=1;
            int loop=1;
            boolean check=true;
            while(loop<=blk && check){
                if(loop>1){
                    index=(A.length/blk)*loop;
                }
                if(A.length%blk!=0){
                    break;
                }
                check=check(peak,index-1,index-1+(A.length/blk));
                
                   loop+=1;
                  
            }
            //  if(!check){
            //           loop-=1;}
            if(loop-1!=blk){
                break;
            }
            blocks++;
        }
        return blocks;
    }
    public boolean check(int [] peak,int index,int max){
        for(;index<max;index++){
            if(peak[index]==1){
                return true;
            }
            if(peak[index]==-1){
                return false;
            }
        }
        return false;
    }
    public int[] getPeaks(int[] A){
     int [] peak=new int[A.length];
     peak[A.length-1]=-1;
     for(int index=1;index<A.length-1;index++){
         if(A[index]>Math.max(A[index-1],A[index+1])){
             peak[index]=1; 
         }else{
            peak[index]=0; 
         }
     }
   return peak;
   }
}