record

#include<bits/stdc++.h>
using namespace std;
int pow2(int n){
	int ans=1;
	for(int i=0;i<n;i++){
		ans*=2;
	}
	return ans;
}
void f(int n){
	if(n==0) return;
	if(n==2){
		cout<<2;
		return;
	}
	if(n%2==1){
		f(n-1);
		cout<<"+2(0)";
	}
	if(n%2==0){
		int i=1;
		while(pow2(i)<n) i++;
		i-=1;
		cout<<"2(";
		f(i);
		cout<<")";
		if(n-pow2(i)>0){
			cout<<"+";
			f(n-pow2(i));
		}
	}
	return;
}
int main(){
	int n;
	cin>>n;
	f(n);
	return 0;
}

dk why and how it is wrong..

pros help me!!!