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Problem27.java
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55 lines (55 loc) · 1.5 KB
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import java.util.Scanner;
import java.util.ArrayList;
public class Problem27 {
// Remove Element
public static void main(String[] args) {
Scanner obj=new Scanner(System.in);
String input=obj.nextLine();
String inputArray[]=input.split(" ");
int nums[]=new int[inputArray.length];
for(int i=0;i<nums.length;i++){
nums[i]=Integer.parseInt(inputArray[i]);
}
int val=obj.nextInt();
// Method 1
// int k=Solution27A.removeElement(nums,val);
// System.out.println(k);
// for(int i=0;i<k;i++){
// System.out.print(nums[i]+" ");
// }
// System.out.println();
// Method 2
int p=Solution27B.removeElement(nums,val);
System.out.println(p);
for(int i=0;i<p;i++){
System.out.print(nums[i]+" ");
}
System.out.println();
obj.close();
}
}
class Solution27A{
public static int removeElement(int nums[],int val){
int j=0;
for(int i=0;i<nums.length;i++){
if(nums[i]!=val){
nums[j++]=nums[i];
}
}
return j;
}
}
class Solution27B {
public static int removeElement(int[] nums, int val) {
ArrayList<Integer> list=new ArrayList<>();
for(int num : nums){
if(num!=val){
list .add(num);
}
}
for(int i=0;i<list.size();i++){
nums[i]=list.get(i);
}
return list.size();
}
}