aboutsummaryrefslogtreecommitdiff
path: root/works/solutions/leetcode/cpp/203.cpp
diff options
context:
space:
mode:
authorYuqian Yang <crupest@crupest.life>2025-02-12 15:55:21 +0800
committerYuqian Yang <crupest@crupest.life>2025-02-12 16:04:50 +0800
commit77e6cdc863d2cbd9df578a665804daf28d8593fe (patch)
tree62c9f3e071d8d1d6fe125fe801907db11784332e /works/solutions/leetcode/cpp/203.cpp
parent10eb95869601e145b1d8bc909424777c25752d51 (diff)
parenta557fa36a22c5ef4a29da596ee1e3aa10be55984 (diff)
downloadcrupest-77e6cdc863d2cbd9df578a665804daf28d8593fe.tar.gz
crupest-77e6cdc863d2cbd9df578a665804daf28d8593fe.tar.bz2
crupest-77e6cdc863d2cbd9df578a665804daf28d8593fe.zip
import(solutions): IMPORT crupest/solutions COMPLETE.
Diffstat (limited to 'works/solutions/leetcode/cpp/203.cpp')
-rw-r--r--works/solutions/leetcode/cpp/203.cpp48
1 files changed, 48 insertions, 0 deletions
diff --git a/works/solutions/leetcode/cpp/203.cpp b/works/solutions/leetcode/cpp/203.cpp
new file mode 100644
index 0000000..0f1bb55
--- /dev/null
+++ b/works/solutions/leetcode/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;
+ }
+};