题解 | #数组中出现次数超过一半的数字#
数组中出现次数超过一半的数字
https://www.nowcoder.com/practice/e8a1b01a2df14cb2b228b30ee6a92163
哈希表映射
import java.util.*; public class Solution { public int MoreThanHalfNum_Solution(int [] array) { if(array.length==1) return array[0]; int[] map = new int[10001]; for(int i=0;i<array.length;i++){ map[array[i]]++; } for(int i=0;i<map.length;i++){ if(map[i]>array.length/2) return i; } return 0; } }