做几个简单积累--进制转换（2）

十进制转换为二进制：

#include <stdio.h>

#include <math.h>

long long convertDecimalToBinary(int n);

int main(){

int n;

printf("输入一个十进制数: ");

scanf("%d", &n);

printf("十进制数 %d 转换为二进制位 %lld", n, convertDecimalToBinary(n));

return 0;

}

long long convertDecimalToBinary(int n){

long long binaryNumber = 0;

int remainder, i = 1, step = 1;

while (n!=0) {

remainder = n%2;

printf("Step %d: %d/2, 余数 = %d, 商 = %d\n", step++, n, remainder, n/2);

n /= 2;

binaryNumber += remainder*i;

i *= 10;

}

return binaryNumber;

}