Task 10 is done

2025.05.23/10Ex/solve.c

@@ -0,0 +1,56 @@
+#include "solve.h"
+#include "node.h"
+#include "io_node.h"
+
+#include <string.h>
+#include <stdlib.h>
+
+node * t10_solve (node *head)
+{
+	int down = 0;
+	node *last, *curr, *next,
+		*start;
+	last=next=start=NULL;
+	curr = head;
+
+	for (next=curr->next; next; next=curr->next)
+	{
+		if (strcmp(next->string, curr->string) <= 0) {
+			if (!down)
+				start = last;
+			down++;
+		} else {
+			if (down) {
+				if (start) {
+					delete_nodes(start->next, down+1);
+					start->next = next;
+					last = start;
+				} else {
+					delete_nodes(head, down+1);
+					head = next;
+					last = NULL;
+				}
+				curr = NULL;
+			}
+			down = 0;
+		}
+		
+		last = curr;
+		curr = next;
+	}
+
+	if (down) {
+		if (start) {
+			delete_nodes(start->next, down+1);
+			start->next = NULL;
+		} else {
+			delete_nodes(head, down+1);
+			head = NULL;
+		}
+		curr = NULL;
+		last = NULL;
+	}
+
+	return head;
+}
+