questao5.listaed1

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

typedef struct list{
	char nome[81];
	char mat[81];
	char turma;
	float p1,p2,p3;
	list* next;
}Lista;

Lista* new_list(){
	return NULL;
}

Lista* lst_insereord (Lista* lst, char* nome, char* matricula, char turma, float p1, float p2, float p3){
	Lista* new_l;
	Lista* ant = NULL;
	Lista* p = lst;
	while(p != NULL && ((p1+p2+p3)/3) > ((p->p1+p->p2+p->p3)/3)){
		ant = p;
		p = p->next;
	}
	new_l = (Lista*)malloc(sizeof(Lista));
	strcpy(new_l->nome,nome);
	strcpy(new_l->mat,matricula);
	new_l->p1 = p1;
	new_l->p2 = p2;
	new_l->p3 = p3;
	new_l->turma = turma;
	if(ant == NULL){
		new_l->next = lst;
		lst = new_l;
	}
	else{
		new_l->next = ant->next;
		ant->next = new_l;
	}
	return lst;
}

Lista* lst_retira(Lista* lst, char* matricula){
	Lista* ant = NULL;
	Lista* p = lst;
	while(p!=NULL && strcmp(matricula,p->mat) != 0){
		ant = p;
		p = p->next;
	}
	if(p == NULL){
		return lst;
	}
	if(ant == NULL){
		lst = p->next;
	}
	else{
		ant->next = p->next;
	}
	free(p);
	return lst;
}

void lst_print(Lista* lst){
	Lista* aux;
	for(aux = lst; aux!=NULL; aux = aux->next){
		printf("Conteudo %s\n", aux->mat);
	}
}

int lst_void (Lista* lst){
	return (lst == NULL);
}


void lst_destroy(Lista* lst){
	Lista* aux = lst;
	while(aux != NULL){
		Lista* t = aux->next;
		free(aux);
		aux = t;
	}
}

int main(void){
	Lista* list;
	list = new_list();
	char mat[81];
	for(int i=0; i<3; i++){
		fgets(mat,81,stdin);
		list = lst_insereord(list,"Gerso",mat,'1	',3.0,4.0,5.0);
	}
	lst_print(list);
	fgets(mat,81,stdin);
	list = lst_retira(list,mat);
	lst_print(list);
	return 0;
}