24 lines
513 B
C++
24 lines
513 B
C++
#ifndef S0023_MERGE_K_SORTED_LISTS_HPP
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#define S0023_MERGE_K_SORTED_LISTS_HPP
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#include <vector>
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using namespace std;
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struct ListNode {
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int val;
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ListNode *next;
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ListNode() : val(0), next(nullptr) {}
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ListNode(int x) : val(x), next(nullptr) {}
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ListNode(int x, ListNode *next) : val(x), next(next) {}
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};
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class S0023 {
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public:
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ListNode *mergeKLists(vector<ListNode *> &lists);
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ListNode *mergeTwoLists(ListNode *a, ListNode *b);
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ListNode *merge(vector<ListNode *> &lists, int l, int r);
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};
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#endif
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