給定數字的二進位制表示形式的C++實現
二進位制數是僅由兩個數字 0 和 1 組成的一個數。例如,01010111。
用二進位制形式表示一個給定數的方法有很多。
遞迴方法
此方法用於使用遞迴將一個數表示成其二進位制形式。
演算法
Step 1 : if number > 1. Follow step 2 and 3. Step 2 : push the number to a stand. Step 3 : call function recursively with number/2 Step 4 : pop number from stack and print remainder by dividing it by 2.
示例
#include<iostream>
using namespace std;
void tobinary(unsigned number){
if (number > 1)
tobinary(number/2);
cout << number % 2;
}
int main(){
int n = 6;
cout<<"The number is "<<n<<" and its binary representation is ";
tobinary(n);
n = 12;
cout<<"\nThe number is "<<n<<" and its binary representation is ";
tobinary(n);
}輸出
The number is 6 and its binary representation is 110 The number is 12 and its binary representation is 1100
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