Have a look at this :)

static String solve(int[] a){
        // Complete this function
        int sum=0;
        int lsum=0;
        int n=a.length;
        for(int i=0;i<n;i++){
            sum=sum+a[i];
        }
        int rsum=sum;
        for(int i=0;i<n;i++){
            rsum=rsum-a[i];
            if(rsum==lsum){
                return "YES";
            }
            lsum=lsum+a[i];
        }
        
        return "NO";
    }