acm 竞赛题xiaoA is a beautiful girl,and she has so many skirts

#include
#include
#include
#include
using namespace std;
map gg;
int cases;
int main ()
{
scanf ("%d\n",&cases);
while (cases--)
{
int n,m;
gg。clear ();
scanf ("%d %d\n",&n,&m);
char str[20];
for (int i = 0; i < n; i++)
{
cin >> str;
gg[str] = true;
}
char dw;
for (int i = 0; i < m; i++)
{
cin >> dw >> str;
if (dw == 'D') gg[str] = false;
else if (dw = 'W' ) gg[str] = true;
}
map ::iterator iter;
int count = 0;
for (iter = gg。begin (); iter != gg。end();iter++)
{
if (iter->second)
count ++;
}
printf ("%d\n",count);
}
return 0;
}