URI 1040

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

int main()
{
   float n1,n2,n3,n4,media,nex,media2;

   scanf("%f %f %f %f", &n1,&n2,&n3,&n4);

   media = (n1*2 + n2*3 + n3*4 + n4*1)/(2+3+4+1);

   if(media >=7.0) {
    printf("Media: %.1f\n", media);
    printf("Aluno aprovado.\n");
   }

   else if(media <= 6.9 && media >= 5){

    printf("Media: %.1f\n", media);
    printf("Aluno em exame.\n");
    scanf("%f", &nex);
    printf("Nota do exame: %.1f\n", nex);

    media2 = (media + nex)/2;
    if(media2 >= 5.0){

        printf("Aluno aprovado.\n");
        printf("Media final: %.1f\n", media2);
    }

    else {
        printf("Aluno reprovado.\n");
        printf("Media final: %.1f\n", media2);
    }


   }

   else {

    printf("Media: %.1f\n",media);
    printf("Aluno reprovado.\n");

   }


    return 0;
}