字符输入问题

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
map<char,map<int,int> >p;
set<char>q;
set<char> ::iterator itq;
int main()
{
     int t;
     int x;
     char a;
     while(cin>>t){
          char c;
          cin>>c;
          while(t--){
          for(int i=0;i<14;i++)
               cin>>x>>a,p[a][x]++,q.insert(a);
          if(q.size()==3){cout<<"No"<<endl;q.clear(),p.clear();}
          else {
               int now=0,next=0;
               for(itq=q.begin();itq!=q.end();itq++){
                    char b=*(itq);
                    if(b==c){
                         now=0;break;
                    }
                    for(int i=1;i<=9;i++){
                         if(p[b][i]==2)now++;
                         else if(p[b][i]==3)next++;
                    }
               }
               if(now==7||(next==4&&now==1))cout<<"Yes"<<endl;
               else cout<<"No"<<endl;
               q.clear();
               p.clear();
          }
          }
     }
}
问题就在cin>>x>>a这里，改成
 string s;
 cin>>s;
 for(int i=0;i<14;i++)
 p[s[2*i+1]][s[2*i]-'0']++,q.insert(s[2*i+1]);
就行，感觉没啥差别啊