* 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 nums int整型一维数组 
 * @return int整型
 */
function minNumberDisappeared( nums ) {
    // write code here
    nums.sort(function(a,b){return a - b});
    let num = 1;
    for(let i = 0;i < nums.length;i++){
        if(nums[i] === num){
            num++;
        }else{
            if(nums[i] > num){
                return num;
            }
        }
    }
    return num;
}
module.exports = {
    minNumberDisappeared : minNumberDisappeared
};

alt