s0027

src/s0027_remove_element.cpp

@@ -0,0 +1,18 @@
+#include "s0027_remove_element.hpp"
+
+int Solution::removeElement(vector<int>& nums, int val) {
+  int size = nums.size();
+  if (size == 0) {
+    return 0;
+  }
+  int fast{0}, slow{0};
+  for (; fast < size; ++fast) {
+    if (nums.at(fast) == val) {
+      continue;
+    } else {
+      nums[slow] = nums.at(fast);
+      ++slow;
+    }
+  }
+  return slow;
+}