View Code of Problem 71

#include<stdio.h>
int main()
{
  int n,i,a=2,b=1,d,c;
  double sum=0.0;
  sacnf("%d",&n);
  for(i=1;i<=n;i++)
  {
    c=a/b;
    d=a+b;
    b=a;
    a=d;
    sum+=c;
  }
  printf("%.2f",sum);
  return 0;
}
/*
Main.c: In function 'main':
Main.c:6:3: warning: implicit declaration of function 'sacnf' [-Wimplicit-function-declaration]
   sacnf("%d",&n);
   ^
/tmp/ccZqaNV9.o: In function `main':
Main.c:(.text+0x31): undefined reference to `sacnf'
collect2: error: ld returned 1 exit status
*/