This probably sounds a bit dumb but I'm wondering why it won't accept a concerted array such as this submission:
var mergeTwoLists = function(list1, list2) {
const mergerarr = list1.concat(list2);
const mergesortfinal = mergerarr.sort((a, b) => a - b);
return mergesortfinal;
};
The question (and hence the data structure) is about linked lists, not arrays. The functions you use are for arrays.
var mergeTwoLists = function(l1, l2) {
var dummy = {
val : -1,
next : null
};
var curr = dummy;
while (l1 && l2) {
if (l1.val > l2.val) {
curr.next = l2;
l2 = l2.next;
} else {
curr.next = l1;
l1 = l1.next;
}
curr = curr.next;
}
curr.next = l1 || l2;
return dummy.next;
};
Try this code using JavaScript format at Leetcode you will passed..
