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| author | crupest <crupest@outlook.com> | 2020-08-05 16:25:29 +0800 |
|---|---|---|
| committer | crupest <crupest@outlook.com> | 2020-08-05 16:25:29 +0800 |
| commit | 7d6dea6d15b2b9f6a5b3d86bf24afa98b9821ad4 (patch) | |
| tree | 8267826c56eebc3e7abeb3ac18e6a16c42dfb9e3 /works/solutions/cpp/203.cpp | |
| parent | 9c28c0afa91b16f4de3356a62cc7f3cd6edbf075 (diff) | |
| download | crupest-7d6dea6d15b2b9f6a5b3d86bf24afa98b9821ad4.tar.gz crupest-7d6dea6d15b2b9f6a5b3d86bf24afa98b9821ad4.tar.bz2 crupest-7d6dea6d15b2b9f6a5b3d86bf24afa98b9821ad4.zip | |
import(solutions): Add problem 203 .
Diffstat (limited to 'works/solutions/cpp/203.cpp')
| -rw-r--r-- | works/solutions/cpp/203.cpp | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/works/solutions/cpp/203.cpp b/works/solutions/cpp/203.cpp new file mode 100644 index 0000000..0f1bb55 --- /dev/null +++ b/works/solutions/cpp/203.cpp @@ -0,0 +1,48 @@ +#include <cstddef>
+
+struct ListNode
+{
+ int val;
+ ListNode *next;
+ ListNode(int x) : val(x), next(NULL) {}
+};
+
+class Solution
+{
+public:
+ ListNode *removeElements(ListNode *head, int val)
+ {
+ if (head == NULL)
+ return NULL;
+
+ ListNode *last = NULL;
+ ListNode *current = head;
+
+ while (current != NULL)
+ {
+ if (current->val == val)
+ {
+ if (last == NULL)
+ {
+ auto temp = current;
+ current = current->next;
+ head = current;
+ delete temp;
+ }
+ else
+ {
+ auto temp = current;
+ current = current->next;
+ last->next = current;
+ delete temp;
+ }
+ }
+ else
+ {
+ last = current;
+ current = current->next;
+ }
+ }
+ return head;
+ }
+};
|