Initial data commit

Task/Remove-duplicate-elements/C/remove-duplicate-elements-1.c

@@ -0,0 +1,33 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+struct list_node {int x; struct list_node *next;};
+typedef struct list_node node;
+
+node * uniq(int *a, unsigned alen)
+ {if (alen == 0) return NULL;
+  node *start = malloc(sizeof(node));
+  if (start == NULL) exit(EXIT_FAILURE);
+  start->x = a[0];
+  start->next = NULL;
+
+  for (int i = 1 ; i < alen ; ++i)
+     {node *n = start;
+      for (;; n = n->next)
+         {if (a[i] == n->x) break;
+          if (n->next == NULL)
+             {n->next = malloc(sizeof(node));
+              n = n->next;
+              if (n == NULL) exit(EXIT_FAILURE);
+              n->x = a[i];
+              n->next = NULL;
+              break;}}}
+
+  return start;}
+
+int main(void)
+   {int a[] = {1, 2, 1, 4, 5, 2, 15, 1, 3, 4};
+    for (node *n = uniq(a, 10) ; n != NULL ; n = n->next)
+        printf("%d ", n->x);
+    puts("");
+    return 0;}