View Code of Problem 69

# include<stdio.h>
float f(float i)
{
  if(i<1)
    return i;
  if(i>=1&&i<10)
    return 2*i-1;
  if(i>=10)
    return 3*i-11;
}
int main(void)
{
  float x,y;
  scanf("%f",&x);
  printf("%.f",f(x));
  return 0;
}