USACO Data Getter - if the zip file is wrong, this program will help you to get get the data

dataunpak.cpp

#include <cstdio>
#include <string>
#define PRONAME "fishing"
char buf[1024];
std::string newfilename;
std::string int2string(int d)
{
	std::string ret;
	while (d)
	{
		ret+=d%10+'0';
		d/=10;
	}
	for (int i=0;i<ret.size()>>1;++i)
	{
		char k=ret[i];
		ret[i]=ret[ret.size()-1-i];
		ret[ret.size()-1-i]=k;
	}
	return ret;
}
int main()
{
	int nowd=0;
	while (1)
	{
		gets(buf);
		if (buf[0]=='\0') continue;
		if (buf[0]=='E') break;
		if (buf[0]=='I')
		{
			fclose(stdout);
			++nowd;
			newfilename=PRONAME;
			newfilename+=int2string(nowd);
			newfilename+=".in";
			freopen(newfilename.c_str(),"w",stdout);
			continue;
		}

		if (buf[0]=='O')
		{
			fclose(stdout);
			newfilename=PRONAME;
			newfilename+=int2string(nowd);
			newfilename+=".out";
			freopen(newfilename.c_str(),"w",stdout);
			continue;
		}
		puts(buf);
	}
	fclose(stdout);
}