diff --git a/lists.c b/lists.c
new file mode 100644
index 0000000..03825bf
--- /dev/null
+++ b/lists.c
@@ -0,0 +1,83 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+//This prog teachs how to use structs of list in c
+
+//Main struct of all structs
+
+typedef struct no
+{
+	struct no * next;
+	int n;
+}NODE;
+
+NODE * cria_no(int n);
+void print_no(NODE * l);
+
+
+//list progs
+NODE * insert_lista (NODE * l,int n);
+NODE * delete_lista(NODE * l,int n);
+
+int main (){
+	int n,i;
+
+	NODE * lista = NULL;
+
+	while(scanf("%d",&n)!=EOF){
+		lista = insert_lista (lista,n);
+		getchar();
+	}
+
+	printf("Numeros inseridos\n");
+	print_no(lista);
+
+	
+	while(scanf("%d",&n)!=EOF){
+		lista = delete_lista (lista,n);
+		print_no(lista);
+	}
+	return 0;
+}
+
+
+NODE * cria_no(int n){
+	NODE * new = malloc(sizeof(NODE));
+	if (new!= NULL){
+		new->next = NULL;
+		new->n = n;
+		return new;
+	}
+	exit(1);
+}
+
+void print_no(NODE * l){
+	if (l !=NULL){
+		printf("%d ",l->n );
+		print_no(l->next);
+	}else {
+		printf("\n");
+	}
+}
+
+///***LISTA*****
+
+NODE * insert_lista (NODE * l,int n){
+	if (l == NULL) return cria_no(n);
+	else{
+		l->next = insert_lista(l->next,n);
+	}
+	return l;
+}
+
+NODE * delete_lista(NODE * l,int n){
+	if (l == NULL) return NULL;
+	else if (l->n == n){
+		NODE * tmp = l;
+		l = l->next;
+		free(tmp);
+	}else{
+	 l->next = delete_lista(l->next,n);
+	}
+	return l;
+}
diff --git a/queue.c b/queue.c
new file mode 100644
index 0000000..1c490a3
--- /dev/null
+++ b/queue.c
@@ -0,0 +1,107 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+//This prog teachs how to use structs of Queue in c
+
+//Main struct of all structs
+
+typedef struct no
+{
+	struct no * next;
+	int n;
+}NODE;
+
+
+//expecific struct used in queue programs
+typedef struct fila
+{
+	NODE * begin,*final;
+}FILA;
+
+//auxiliar functions
+NODE * cria_no(int n);
+void print_no(NODE * l);
+
+//Queue progs
+FILA * cria_fila(void);
+FILA * insert_fila(FILA * f,int n);
+FILA * delete_fila (FILA * f);
+
+
+int main (){
+	int n,i;
+	FILA * fila = cria_fila();
+	while(scanf("%d",&n)!=EOF){
+		fila = insert_fila(fila,n);
+	}
+
+	printf("OK\n");
+	while(scanf("%d",&n)!=EOF){
+		delete_fila(fila);
+		print_no(fila->begin);
+	}	
+	
+	return 0;
+}
+
+
+NODE * cria_no(int n){
+	NODE * new = malloc(sizeof(NODE));
+	if (new!= NULL){
+		new->next = NULL;
+		new->n = n;
+		return new;
+	}
+	exit(1);
+}
+
+void print_no(NODE * l){
+	if (l !=NULL){
+		printf("%d ",l->n );
+		print_no(l->next);
+	}else {
+		printf("\n");
+	}
+}
+///***FILAS*****
+
+FILA * cria_fila(void){
+	FILA * f = malloc(sizeof(FILA));
+	if (f!=NULL){
+		f->begin = f->final = NULL;
+		return f;
+	}
+	exit(1);
+}
+
+FILA * insert_fila(FILA * f,int n){
+	if (f->begin == NULL){
+		f->begin = f->final = cria_no(n);
+	}else{
+		NODE * aux = cria_no(n);
+		aux->next = f->begin;
+		f->begin = aux;
+	}
+	return f;
+}
+
+FILA * delete_fila (FILA * f) {
+	if (f->begin == NULL) return f;
+	else{
+		if (f->begin == f->final){
+			NODE * aux = f->begin;
+			f->begin = f->final = NULL;
+			free(aux);
+		}else{
+			NODE * aux = f->begin;
+			while(aux->next!=f->final){
+				aux = aux->next; 
+			}
+			f->final = aux;
+			aux = aux->next;
+			free(aux);
+			f->final->next = NULL;
+		}
+	}
+	return f;
+}
diff --git a/stacks.c b/stacks.c
new file mode 100644
index 0000000..a2b263e
--- /dev/null
+++ b/stacks.c
@@ -0,0 +1,80 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+//This prog teachs how to use structs of Stacks in c
+
+//Main struct of all structs
+
+typedef struct no
+{
+	struct no * next;
+	int n;
+}NODE;
+
+//auxiliar functions
+NODE * cria_no(int n);
+void print_no(NODE * l);
+
+//stacks progs
+NODE * insert_pilha (NODE * p,int n);
+NODE * delete_pilha (NODE * p);
+
+int main (){
+	int n,i;
+
+	NODE * pilha = NULL;
+
+	while(scanf("%d",&n)!=EOF){
+		pilha = insert_lista (pilha,n);
+		getchar();
+	}
+
+	printf("Numeros inseridos\n");
+	print_no(pilha);
+
+	
+	while(scanf("%d",&n)!=EOF){
+		lista = delete_pilha (lista,n);
+		print_no(pilha);
+	}
+	return 0;
+}
+
+
+NODE * cria_no(int n){
+	NODE * new = malloc(sizeof(NODE));
+	if (new!= NULL){
+		new->next = NULL;
+		new->n = n;
+		return new;
+	}
+	exit(1);
+}
+
+void print_no(NODE * l){
+	if (l !=NULL){
+		printf("%d ",l->n );
+		print_no(l->next);
+	}else {
+		printf("\n");
+	}
+}
+
+
+///***PILHA*****
+
+NODE * insert_pilha (NODE * p,int n){
+	if (p == NULL) return cria_no(n);
+	else{
+		NODE * aux = cria_no(n);
+		aux->next = p;
+		return aux;
+	}
+}
+NODE * delete_pilha (NODE * p){
+	if (p!=NULL){
+		NODE * aux = p;
+		p = p->next;
+		free(aux);
+	}
+}