algorithm - Fenwick Tree Java -

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I tried to apply the fenwick tree in java, but I can not find the desired result here is my code: / P> 

  Import java.io. *; Import java.util. *; Import java.math. *; Class Fenwick 1 {Public Stable Int N; Public stable long [] A; Public Stable Zero Main (String [] AGR throws IOException {BufferedReader br = New BufferedReader (New InputStreamReader (System.in)); N = integer PRIIENT (Breadline ()); A = new tall [N]; String [] str = br.readLine (). the division (""); (I.e. ++) for i   
 When I input:  
 
 10 1 2 3 4 5 6 7 8 9 10   < P> I get:  
 
 13 
 19   
 Then increase the increment work But the query (4) is cumulative amount up to index 4 i.e.  
 
 (1 + 2 + 13 + 4 + 5) = 25    
 
 
 You do not start it properly instead:  
 For  (int i = 0; i & lt; N; i ++) {a [i] = Long. Parcelong (str [i]);}   
 should be:  
 For  (int i = 0; I & lt; N; I ++) {increment (i, (int) long parseLong (str [i])); }   
 Because  a [i]  should accumulate a cumulative sum, not a single element.  
 If you also have an initial array element, you can create another array:  
  long [] initA = new tall [N]; For (int i = 0; i & lt; n; i ++) {initA [i] = long.more than (str [ii]); Increment (i, (int) initA [i]); }

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