纯C语言：递归二进制转十进制源码

#include<stdio.h>#include<math.h>int change(int n,int *sum,int *m)//n为第n位，m总位数{char c;if(c!='#'){*m=*m+1;change(n+1,sum,m);}if(c=='#'){return *sum=int(*sum+pow(2,*m-n));}}void main(){char c;int n=0,*sum=0,*m=0;printf("请输入二进制数（‘#’开始与结束）：");scanf("%c",c);int t=change(n,*sum,*m);printf("转化成十进制的数字为：%d",t);}