进制转与十进制相互转换。实例 - 二进制转换为十进制

include

include

int convertBinaryToDecimal(long long n);

int main()
{
long long n;
printf("输入一个二进制数: ");
scanf("%lld", &n);
printf("二进制数 %lld 转换为十进制为 %d", n, convertBinaryToDecimal(n));
return 0;
}

int convertBinaryToDecimal(long long n)
{
int decimalNumber = 0, i = 0, remainder;
while (n!=0)
{
remainder = n%10;
n /= 10;
decimalNumber += remainder*pow(2,i);
++i;
}
return decimalNumber;
}