題目描述
輸入一個鏈表,按鏈表從尾到頭的順序返回一個ArrayList。
/*function ListNode(x){
this.val = x;
this.next = null;
}*/
function printListFromTailToHead(head)
{
var arr = [];
if(!head) {
return []
} else {
if(head.next){
arr = arr.concat(this.printListFromTailToHead(head.next));
} else {
return [head.val];
}
arr = arr.concat(head.val);
}
return arr
}
module.exports = {
printListFromTailToHead : printListFromTailToHead
};
運行時間:99ms
佔用內存:8168k