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Sep 2nd, 2014
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C 0.58 KB | None | 0 0
  1. #include<stdlib.h>
  2. #include<stdio.h>
  3.  
  4. int main(){
  5.     int i  ,n  ;
  6.     float media,*pvetor;
  7.  
  8.     printf( "\nInforme quantos alunos desejas cadastrar:" );
  9.     scanf("%d" , &n );
  10.  
  11.     /* aloca espaco na memoria */
  12.     pvetor = (int*) malloc( n * sizeof(int));
  13.  
  14.     if(!pvetor){
  15.         printf( " Sem memória!" );
  16.         return 1;
  17.     }
  18.     for (i = 0; i < n ; i ++){
  19.         printf( "\nInforme o aluno %d:",i+1);
  20.         scanf ("%f" , pvetor + i );
  21.     }
  22.  
  23.  
  24.     media = 0.0;
  25.     for (i = 0; i < n ; i ++){
  26.         media += *( pvetor + i );
  27.     }
  28.     printf ("Media da turma: %.1f\n",media/n);
  29.  
  30.  
  31.     free (pvetor);
  32.     return 0;
  33. }
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