数学趣题——应用递归实现数制转换

[code] #include <stdio.h>

#include <math.h>

void biTOde(int n,int *sum,int *m)

{

 char c;

 scanf("%c",&c);

 if(c!='#'){

 *m = *m +1;

 biTOde(n+1,&(*sum),&(*m));

}

 if(c == '1') *sum = *sum + pow(2,(*m)-n-1);

}

int main()

{

 int sum = 0,m=0;

 printf("Please input a binary number ending for '#'\n");

 biTOde(0,&sum,&m) ;

 printf("The Decimal Decimal digit is\n");

 printf("%d ",sum);

 return 0;

}