#include <stdio.h>
#include <malloc.h>
 
float soma (float v[], int dim)
{
  float s = 0.0;
  int n;
  
  for(n = 0; n < dim; n++)
  {
    s += v[n];
  }
  
  return s;
}
 
int main()
{
  int num, n;
  float *v;

  printf("\ndigite o numero de pontos: ");
  scanf("%d", &num);
  
  v = (float *)malloc(num * sizeof(float));
  for(n = 0; n < num; n++) 
  {
    printf("\n valor de v%d: ", n + 1);
    scanf("%f", &v[n]);
  }

  printf("\nSoma = %f", soma(v, num));
  
  return 0;
}