View Code of Problem 69

#include<stdio.h>

int hanshu(int x);

int hanshu(int x)
{
	int y;
  if(x<1)
    y=x;
  if(x>=1&&x<10)
    y=2*x-1;
  else
    y=3*x-11;
  return y;
}
  
int main(void)
{
  int x, y;
  printf("一个数");
  scanf("%d",&x);
  y=hanshu(x);
  printf("一个数%d\n",y);
}