题解 | #数组中出现次数超过一半的数字#

/**
 * 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
 */
function MoreThanHalfNum_Solution( numbers ) {
    let map = new Map();
    for(let i = 0; i < numbers.length; i++){
        if(map.has(numbers[i])){
            map.set(numbers[i], map.get(numbers[i]) + 1);
        }
        else{
            map.set(numbers[i], 1);
        }
    }
    for(let i = 0; i < numbers.length; i++){
        if(map.get(numbers[i]) > numbers.length / 2){
            return numbers[i];
        }
    }
}
module.exports = {
    MoreThanHalfNum_Solution : MoreThanHalfNum_Solution
};