Exercício 5

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

int main(){

     int    N,i,aux;
     float        S;

    printf("\nDigite o valor de N: ");
    scanf("%d",&N);

    if(N==1){
        S=2;

       printf("\nA soma total tem valor %.2f\n\n",S);
       system("pause");

        }//end if

        else{

    aux=0;
    for(i=(N-1);i>=1;i--){

    S += (float)1/fatorial(N-aux);
    aux++;
    }//end for

    printf("\nA soma total tem valor %.3f\n\n",S+2);
    system("pause");
        }//end else
    }//end program


int fatorial(int Num){
    int n,fat;


      if(Num>=0){
        fat=1;
        n=Num;

            while(n>0){
             fat*=n;
             n--;     }//end while
                }//end if
}//end fatorial()