checkout is going to KILL ME

losing SO MUCH thank fuck i dont close files

common/linkedlist.c

@@ -68,6 +68,8 @@ int adll_remove(dllda *whatif, nodeld *node)
         // right of left now is null
         if (whatif->end != NULL)
             whatif->end->next = NULL;
+        if (whatif->start == whatif->end)
+            whatif->end = NULL; // i do hate life do i
     }
 
     whatif->size--;

specials/binary_search.c

@@ -1,12 +1,38 @@
 // feed in a pointer to a function that takes 2 and returns (just like the )
 #include <stdlib.h>
 #include <stdio.h>
+#include <stdbool.h>
+#include <math.h>
 
 int cmpfunc(const void *a, const void *b)
 {
     const int *A = a, *B = b;
     return (*A > *B) - (*A < *B);
 }
+int _centeredCube(int num) {
+    int low = -num, high = num, mid, result = 0;
+    while (low <= high) {
+        mid = low + (high - low) / 2;
+
+        long long thisSum = (long long) pow(mid, 3) + (long long) pow(mid + 1, 3);  // Avoid overflow
+
+        if (thisSum == (long long) num)
+            return mid;  
+        else if (thisSum < num) {
+            result = mid;  // Store the best approximation so far
+            low = mid + 1;
+        } else {
+            high = mid - 1;
+        }
+    }
+    return result;  // Return the closest guess when exact match is not found
+};
+bool centerCube(int num) {
+    int n = _centeredCube(num);
+    long long thisSum = (long long) pow(n, 3) + (long long) pow(n + 1, 3);
+    printf("n = %d, thisSum = %lld, num = %d\n", n, thisSum, num);
+    return thisSum == (long long) num;
+}
 
 int main(int argc, char const *argv[])
 {

specials/cocktail.c

@@ -0,0 +1,67 @@
+#include <stdio.h>
+
+// Function to perform Cocktail Shaker Sort (Bidirectional Bubble Sort)
+void cocktailShakerSort(int arr[], int n) {
+    int swapped = 1; // To track if any swaps were made
+    int start = 0;   // Starting index
+    int end = n - 1; // Ending index
+
+    while (swapped) {
+        swapped = 0;
+
+        // Forward pass: left to right
+        for (int i = start; i < end; ++i) {
+            if (arr[i] > arr[i + 1]) {
+                // Swap if the current element is greater than the next
+                int temp = arr[i];
+                arr[i] = arr[i + 1];
+                arr[i + 1] = temp;
+                swapped = 1;
+            }
+        }
+
+        // If no swaps occurred, the array is sorted
+        if (!swapped)
+            break;
+
+        // Reduce the end point since the last element is sorted
+        --end;
+
+        // Backward pass: right to left
+        for (int i = end - 1; i >= start; --i) {
+            if (arr[i] > arr[i + 1]) {
+                // Swap if the current element is greater than the next
+                int temp = arr[i];
+                arr[i] = arr[i + 1];
+                arr[i + 1] = temp;
+                swapped = 1;
+            }
+        }
+
+        // Increment the start point since the first element is sorted
+        ++start;
+    }
+}
+
+// Helper function to print the array
+void printArray(int arr[], int n) {
+    for (int i = 0; i < n; i++) {
+        printf("%d ", arr[i]);
+    }
+    printf("\n");
+}
+
+int main() {
+    int arr[] = {5, 1, 4, 2, 8, 0, 3};
+    int n = sizeof(arr) / sizeof(arr[0]);
+
+    printf("Original array: ");
+    printArray(arr, n);
+
+    cocktailShakerSort(arr, n);
+
+    printf("Sorted array: ");
+    printArray(arr, n);
+
+    return 0;
+}