题解 | 乒乓球

#include <iostream>
using namespace std;
#include<string>
#include<cmath>
int main() {
   string s;
   cin>>s;
    int win_W=0,win_L=0;
   for(int i=0;i<s.size();i++){
        if(s[i]=='W'){
            win_W++;
        }
        else{
            win_L++;
        }
       if((win_W>=11||win_L>=11)&&abs(win_L-win_W)>=2){
           cout<<win_W<<":"<<win_L<<endl;
           win_W=0;
           win_L=0;
       }
       if(i==s.size()-1){
           cout<<win_W<<":"<<win_L<<endl;
           win_W=0;
           win_L=0;
       }
   }
   cout<<endl;
   win_W=0;
   win_L=0;
    for(int i=0;i<s.size();i++){
        if(s[i]=='W'){
            win_W++;
        }
        else{
            win_L++;
        }
       if((win_W>=21||win_L>=21)&&abs(win_L-win_W)>=2){
           cout<<win_W<<":"<<win_L<<endl;
           win_W=0;
           win_L=0;
       }
       if(i==s.size()-1){
           cout<<win_W<<":"<<win_L<<endl;
           win_W=0;
           win_L=0;
       }
   }
}
// 64 位输出请用 printf("%lld")