clf_programing：var str = readline(); var arr = JSON.parse(str); var result = {isEmpty: [],likeNumber: []}; function parse(arr,result){ for(var i in arr){ if(arr[i] === undefined || arr[i] === null || (Object.keys(arr[i]).length == 0 && typeof arr[i] != 'number')){ result.isEmpty.push(arr[i]); }else if(typeof arr[i] == 'number' || !isNaN(arr[i])){ result.likeNumber.push(arr[i]); } } print(JSON.stringify(result)); } parse(arr,result);