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| author | crupest <crupest@outlook.com> | 2020-08-26 23:47:14 +0800 |
|---|---|---|
| committer | crupest <crupest@outlook.com> | 2020-08-26 23:47:14 +0800 |
| commit | 3fe957fb772e60f8e04fb586dedae23ba71a938e (patch) | |
| tree | 17bd3505c4e4ff8eb53bd4272213cc0e8a6c8a6c /works/solutions/cpp | |
| parent | 4c473d407c39bb6cfae9e07e6bcb36a47b014b70 (diff) | |
| download | crupest-3fe957fb772e60f8e04fb586dedae23ba71a938e.tar.gz crupest-3fe957fb772e60f8e04fb586dedae23ba71a938e.tar.bz2 crupest-3fe957fb772e60f8e04fb586dedae23ba71a938e.zip | |
import(solutions): Add problem 147 .
Diffstat (limited to 'works/solutions/cpp')
| -rw-r--r-- | works/solutions/cpp/147.cpp | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/works/solutions/cpp/147.cpp b/works/solutions/cpp/147.cpp new file mode 100644 index 0000000..c741290 --- /dev/null +++ b/works/solutions/cpp/147.cpp @@ -0,0 +1,56 @@ +#include <cstddef>
+
+struct ListNode
+{
+ int val;
+ ListNode *next;
+ ListNode(int x) : val(x), next(NULL) {}
+};
+
+class Solution
+{
+public:
+ ListNode *insertionSortList(ListNode *head)
+ {
+ if (head == NULL)
+ return NULL;
+ if (head->next == NULL)
+ return head;
+
+ ListNode *next_sort = head->next;
+
+ head->next = nullptr;
+
+ while (next_sort != nullptr)
+ {
+ ListNode *current_sort = next_sort;
+ next_sort = current_sort->next;
+
+ ListNode *prev = nullptr;
+ ListNode *current = head;
+
+ int i = 0;
+
+ while (current != nullptr && current->val < current_sort->val)
+ {
+ i++;
+ prev = current;
+ current = current->next;
+ }
+
+ if (prev == nullptr)
+ {
+ current_sort->next = head;
+ head = current_sort;
+ }
+ else
+ {
+ ListNode *prev_next = prev->next;
+ prev->next = current_sort;
+ current_sort->next = prev_next;
+ }
+ }
+
+ return head;
+ }
+};
|