标签：class cin mes ORC main ++ str pac def
#include <iostream>
#include <string>
using namespace std;
int main()
{
int n, plus, sub;
string ope;
while(cin>>n)
{
plus=sub=0;
while(n--)
{
cin>>ope;
if(ope[1]==‘-‘)
++sub;
else
++plus;
}
cout<<plus-sub<<endl;
}
return 0;
}
标签：class cin mes ORC main ++ str pac def
原文地址：https://www.cnblogs.com/commario/p/11803488.html
