将十进制数转换为对应的二进制数@Love babbar

Question

Can anyone tell me why is this code not giving proper answer for odd numbers but it is giving right answers for even numnbers.

 **int main(){
  int n;
  cin>> n;

  int ans = 0;
  int i = 0;
  while(n != 0){
    int bit = n & 1;
    ans = (bit * pow(10, i)) + ans;
    n = n >> 1;
    i++;
  }
  cout<<ans;
}**

Answer 1

Change pow(10, i) to pow(2, i) , since binary works in powers of 2, not powers of 10. Also (side note), you can change the while loop to a for loop concerning incrementing i :

for (int i = 0; n != 0; i++)
{
    //convert n to binary
}