Virus——making

#include<bits/stdc++.h>
using namespace std;
vector<string>test;
string answer;
void build()
{
	printf("Hello,This is virus_make1.0.\n");
	printf("press you puzzles,please.(if you OK,press 'end')\n");
	while(1)
	{
		string a;
		cin>>a;
		if(a=="end") break;
		else test.push_back(a);
	}
	printf("Now,press the answer to the puzzle.\n");
	cin>>answer;
	printf("OK!Next time it will work.\n");
	freopen("virus.vir","w",stdout);
	printf("1\n");
	for(int i=0;i<test.size();i++) printf("%s\n",test[i]);
	printf("end\n");
	printf("%s\n",answer);
	return;
}
int main()
{
	int begin=0;
	freopen("virus.vir","r",stdin);
	cin>>begin;
	if(begin) virus();
	else build();
	return 0;
}