题解 | #数组中出现次数超过一半的数字# 桶计数+减枝
数组中出现次数超过一半的数字
https://www.nowcoder.com/practice/e8a1b01a2df14cb2b228b30ee6a92163
import java.util.*; public class Solution { /** * 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可 * * * @param numbers int整型一维数组 * @return int整型 */ public int MoreThanHalfNum_Solution (int[] numbers) { // write code here int count[] = new int[10001]; int len = numbers.length; int val = -1; for(int i = 0; i < len; i++){ count[numbers[i]]++; // 减枝 if(count[numbers[i]] > len / 2){ val = numbers[i]; break; } } return val; } }