*/classSolution{public: ListNode *deleteDuplicates(ListNode *head){ ListNode* pNode = head; ListNode* tmp = new ListNode(0); tmp->next = pNode; ListNode* pre = tmp;while(pNode !=NULL) {boolflag =false;while(pNode->next !=NULL&& pNode->val == pNode->next->val) { flag =true;...
如果没有重复,则把之前的元素插入链表。 我们只需要用一个bool变量标记即可,遇到重复元素就置位true,否则为false。再额外创建一个新的链表即可。 代码 ``` /** Definition for singly-linked list. struct ListNode { int val; ListNode *next; ListNode(int x) : val(x), next(NULL) {} }; / class S...
for(inti=1;i<len;i++){Boolean findDuplicates=false;if(nums[i]==nums[i-1]){findDuplicates=true;}
next(NULL) {}7* };8*/9classSolution {10public:11ListNode* deleteDuplicates(ListNode*head) {12if(head==NULL)13returnNULL;14ListNode* newhead=newListNode(0);//to handle head15newhead->next=head;16ListNode* a=newhead,*b=newhead->next;17intnow...
print函数是Python内置的一个函数,用于将指定的内容输出到控制台或者文件中。它的基本语法是: print(value1, value2, ..., sep=' ', end='\n', file=sys.stdout, flush=False) 其中,value1, value2, ... 是要输出的值,可以是字符串、数字、变量等。sep参数用于指定多个值之间的分隔符,默认为一个空格...
importoperatordefremove_duplicates(items, key=lambdax: x, keep_older=False):# iter acts like an identity function here, i.e. no# change to the order and Python would have called it# anyway.sort_fn =iterifkeep_olderelsereversedvalues = OrderedDict((key(i), i)foriinsort_f...
while(1){ i = streak = 1; bool removed = false; streak = (s[i] == s[i - 1] ? streak + 1 : 1); if(streak == k) s.erase(i - k + 1, k), streak = 1, removed = true; } if(!removed) break; } return s; }...
Method 3 – Inserting UNIQUE Function to Remove Duplicates While Keeping the First Value in Excel Steps: Click oncell B5and insert the following formula. =UNIQUE('Sample Dataset'!B5:E15,FALSE,FALSE) Press theEnterkey. It will delete the rows with duplicate values while keeping the first value...
df.sort_values('B', ascending=False).drop_duplicates('A').sort_index() A B 1 1 20 3 2 40 4 3 10 Or simply group by all the other columns and take the max of the column you need. df.groupby('A', as_index=False).max() Share Improve this answer Follow...
mark.parametrize('remove_supposed_mock', (False, True)) async def test_versions_existing_directory(alice_workspace, alice, remove_supposed_mock): versions = await alice_workspace.versions(FsPath("/files"), remove_supposed_mock=remove_supposed_mock) versions_list = list(versions.items()) [......