By yusijia

Updated:

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/*
 * Given an array and a value, remove all instances of that value in place and 
 * return the new length.

 * The order of elements can be changed. It doesn't matter what you leave 
 * beyond the new length.
 */
  • 题意：
    删除一个数组里值为 elem 的所有数。
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public class RemoveElement {

    public int removeElement(int[] A, int elem) {
        int index = 0;
        for (int i = 0; i < A.length; i++) {
            if (A[i] != elem)
                A[index++] = A[i];
        }
        return index;
    }
}
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