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fizzArray3  challenge

Posted on 2016-08-08
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Last Modified: 2016-08-09
Hi,

I am working on below challenge
http://codingbat.com/prob/p142539

Psedo code description of approach :
1. find length of new array by subtracting end-start
2. create new array with above lenght
3. assign each element 0f new array using numbers between start(inclusive) and end(exclusive)

I wrote my code as below

public int[] fizzArray3(int start, int end) {
  int len=end-start;
  int[] arr=new int[len];
  for(int i=0;i<len;i++){
    arr[i]=start+i;
    
  }
  return arr;
}

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I am passing all tests
Expected      Run            
fizzArray3(5, 10) → [5, 6, 7, 8, 9]      [5, 6, 7, 8, 9]      OK      
fizzArray3(11, 18) → [11, 12, 13, 14, 15, 16, 17]      [11, 12, 13, 14, 15, 16, 17]      OK      
fizzArray3(1, 3) → [1, 2]      [1, 2]      OK      
fizzArray3(1, 2) → [1]      [1]      OK      
fizzArray3(1, 1) → []      []      OK      
fizzArray3(1000, 1005) → [1000, 1001, 1002, 1003, 1004]      [1000, 1001, 1002, 1003, 1004]      OK      
other tests
OK

How to improve my design, approach, code? please advise
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Question by:gudii9
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1 Comment
 
LVL 36

Accepted Solution

by:
mccarl earned 2000 total points
ID: 41749677
There is nothing wrong with your code at all, but just to give you another alternative, I might do it like this...

public int[] fizzArray3(int start, int end) {
    int[] arr = new int[end - start];
    for(int i = 0, v = start;  v < end;  i++, v++) {
        arr[i] = v;
    }
    return arr;
}

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