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array contains zeros and ones as elements.we need to bring
zeros one side and one other side in single parse.
ex:a[]={0,0,1,0,1,1,0,0}
o/p={0,0,0,0,0,1,1,1}
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Answer Posted / hemavathi
in java this works jus fine:
public static void singlePass(int[] arr){
System.out.println("Orignal Array : " +
Arrays.toString(arr));
int first1index = -1;
for(int i=0; i<arr.length; i++) {
if(arr [i] == 1 && first1index == -1) {
first1index = i;
}
else if(arr [i] == 0 && first1index != -1) {
arr[i] = 1; arr[first1index] = 0;
first1index++;
}
}
System.out.println("Modified Array : " +
Arrays.toString(arr));
}
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