forked from mirandaio/codingbat
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathzeroFront.java
More file actions
25 lines (21 loc) · 786 Bytes
/
zeroFront.java
File metadata and controls
25 lines (21 loc) · 786 Bytes
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
/* Return an array that contains the exact same numbers as the given array,
* but rearranged so that all the zeros are grouped at the start of the array.
* The order of the non-zero numbers does not matter. So {1, 0, 0, 1} becomes
* {0 ,0, 1, 1}. You may modify and return the given array or make a new array.
*/
public int[] zeroFront(int[] nums) {
if(nums.length == 0)
return nums;
int i = 0;
while(nums[i] == 0)
i++;
for(int j = i + 1; j < nums.length; j++) {
if(nums[j] == 0) {
int temp = nums[i];
nums[i] = nums[j];
nums[j] = temp;
i++;
}
}
return nums;
}