exo3

exo3/Makefile

@@ -7,8 +7,8 @@ LDFLAGS:=-lm
 
 
 
-ex3: ex3.c
-	$(CC) $(CFLAGS) -c $@ $^ $(LDFLAGS)
+exo3: exo3.c
+	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
 clean:
-	rm -f *.o ex3
+	rm -f *.o exo3

exo3/exo3.c

+#include <stdio.h>
+#include <stdbool.h>
+
+typedef struct element{
+    int data;
+    struct dll *next; // go to tail
+    struct dll *prev; // go to head    
+}element;
+
+typedef struct dll
+{
+    element *pos;
+    element *head;
+}dll;
+
+dll dll_creat();
+void dll_print();
+
+
+int main() {
+    int len;
+    int val1;
+    int val2;
+    int val3;
+    int list = scanf("%d %d %d %d", &len, &val1, &val2, &val3);
+    // printf("%d\n%d\n%d\n%d\n", len, val1, val2, val3);
+
+}
\ No newline at end of file