无语的水题，我又写了很长的代码，而WSC的好短哦。
字符串处理，首先分段，然后如果有偶数个双引号，则单的变“，双的变”，如果有奇数个双引号，则最后一个省略，其他同前。
CO
/*
PROGRAM: $PROGRAM
AUTHOR: Su Jiao
DATE: 2010-3-27
DESCRIPTION:
$DESCRIPTION
*/
#include <iostream>
using std::cin;
using std::cout;
#include <fstream>
using std::ifstream;
using std::ofstream;
#include <sstream>
using std::stringstream;
using std::endl;
#include <vector>
using std::vector;
#include <string>
using std::string;
#include <stack>
using std::stack;
#include <queue>
using std::queue;
#include <set>
using std::set;
#include <map>
using std::map;
using std::pair;
using std::make_pair;
#include <algorithm>
using std::sort;
#include <cassert>
//using std::assert;
#include <cstdio>
//using std::EOF;
class Application
{
string file;
public:
Application()
{
char c;
while ((c=cin.get())!=EOF) file.push_back(c);
}
int run()
{
for (int i=0,j;i<file.length();i=j)
{
bool endinput=false;
for (int k=i;;k++)
{
if (file.substr(k,4)==“\\par”)
{
j=k+4;
break;
}
if (file.substr(k,9)==“\\endinput”)
{
endinput=true;
j=file.length();
break;
}
if (file.substr(k,2)==“\n\n”)
{
j=k+2;
break;
}
}
int total=0;
bool printed;
int counter=0;
for (int k=i;k<j;k++)
if (k==0||file[k-1]!=’\\’)
if (file[k]=='”‘)
total++;
for (int k=i;k<j;k++)
{
printed=false;
if (k==0||file[k-1]!=’\\’)
{
if (file[k]=='”‘)
{
if (counter%2)
{
counter++;
cout<<“””;
printed=true;
}
else
{
counter++;
if (total!=counter) cout<<““”;
printed=true;
}
}
}
if (!printed) cout<<file[k];
}
if (endinput) break;
}
return 0;
}
};
int main()
{
Application app;
return app.run();
}