二进制转换为八进制
#include <stdio.h>
#include <math.h>
int convertBinarytoOctal(long long binaryNumber);
int main()
{
long long binaryNumber;
printf("输入一个二进制数: ");
scanf("%d", &binaryNumber);
printf("二进制数 %lld 转换为八进制位 %d",binaryNumber,convertBinarytoOctal(binaryNumber));
return 0;
}
int convertBinarytoOctal(long long binaryNumber)
{
int octalNumber= 0,decimalNumber=0;
int i = 0;
while (binaryNumber!=0)
{
decimalNumber+=(binaryNumber%10)*pow(2,i);
++i;
binaryNumber /= 10;
}
i=1;
while(decimalNumber!=0)
{
octalNumber+=(decimalNumber%8)*i;
decimalNumber/=8;
i*=10;
}
return octalNumber;
}