# Code to convert Binary to Decimal

```
//binary to decimal 
#include<iostream>
using namespace std;

int DecToBinary(int n ){
	int p=1;
	int ans =0;
	int last_digit;
	while (n!=0){
			last_digit= n%10;
			ans= ans + last_digit*p; 
			n=n/10;
			p=p*2;
					}

	return ans;
}


int main(){
	int N;
	cin>>N;
	cout<<DecToBinary(N)<<endl;



	return 0;
}
```