#include <bits/stdc++.h>
using namespace std;
int eleven[6250][2];
int twelve[6250][2];
int main(){
    char now [30];
    bool is_end = false;
    int a = 11;
    int b = 21;
    int huahua = 0;
    int duishou = 0;
    int twe_huahua = 0;
    int twe_duishou = 0;
    int ele_cnt = 0;
    int twe_cnt = 0;
    while(true){
        if(is_end)break;
        cin.getline(now, 30);
        int idx = 0;
        while(now[idx]!='\0'){
            if(now[idx]=='E'){
                is_end = true;
                eleven[ele_cnt][0] = huahua;
                eleven[ele_cnt][1] = duishou;
                ele_cnt++;
                twelve[twe_cnt][0] = twe_huahua;
                twelve[twe_cnt][1] = twe_duishou;
                twe_cnt++;
                break;
            }
            if(now[idx]=='W'){
                huahua++;
                twe_huahua++;
            }
            else {
                duishou++;
                twe_duishou++;
            }
            if((huahua>=11||duishou>=11)&&abs(huahua-duishou)>=2){
                eleven[ele_cnt][0] = huahua;
                eleven[ele_cnt][1] = duishou;
                ele_cnt++;
                huahua = 0;
                duishou = 0;
            }
            if((twe_huahua>=21||twe_duishou>=21)&&abs(twe_huahua-twe_duishou)>=2){
                twelve[twe_cnt][0] = twe_huahua;
                twelve[twe_cnt][1] = twe_duishou;
                twe_cnt++;
                twe_huahua = 0;
                twe_duishou = 0;
            }
            idx++;
        }
    }

    for(int i=0;i<ele_cnt;i++){
        cout<<eleven[i][0]<<":"<<eleven[i][1]<<endl;
    }
    cout<<endl;
    for(int i=0;i<twe_cnt;i++){
        cout<<twelve[i][0]<<":"<<twelve[i][1]<<endl;
    }
    return 0;
}

以上是只跑了20分的，用的cin.getline()

#include <bits/stdc++.h>
using namespace std;
int eleven[6250][2];
int twelve[6250][2];
int main(){
    char now [30];
    bool is_end = false;
    int a = 11;
    int b = 21;
    int huahua = 0;
    int duishou = 0;
    int twe_huahua = 0;
    int twe_duishou = 0;
    int ele_cnt = 0;
    int twe_cnt = 0;
    while(true){
        if(is_end)break;
        cin>>now;
        int idx = 0;
        while(now[idx]!='\0'){
            if(now[idx]=='E'){
                is_end = true;
                eleven[ele_cnt][0] = huahua;
                eleven[ele_cnt][1] = duishou;
                ele_cnt++;
                twelve[twe_cnt][0] = twe_huahua;
                twelve[twe_cnt][1] = twe_duishou;
                twe_cnt++;
                break;
            }
            if(now[idx]=='W'){
                huahua++;
                twe_huahua++;
            }
            else {
                duishou++;
                twe_duishou++;
            }
            if((huahua>=11||duishou>=11)&&abs(huahua-duishou)>=2){
                eleven[ele_cnt][0] = huahua;
                eleven[ele_cnt][1] = duishou;
                ele_cnt++;
                huahua = 0;
                duishou = 0;
            }
            if((twe_huahua>=21||twe_duishou>=21)&&abs(twe_huahua-twe_duishou)>=2){
                twelve[twe_cnt][0] = twe_huahua;
                twelve[twe_cnt][1] = twe_duishou;
                twe_cnt++;
                twe_huahua = 0;
                twe_duishou = 0;
            }
            idx++;
        }
    }

    for(int i=0;i<ele_cnt;i++){
        cout<<eleven[i][0]<<":"<<eleven[i][1]<<endl;
    }
    cout<<endl;
    for(int i=0;i<twe_cnt;i++){
        cout<<twelve[i][0]<<":"<<twelve[i][1]<<endl;
    }
    return 0;
}

以上是跑过了的，跟第一个，区别只在于这个用的是cin，而不是cin.getline()

然后我还下载了第二个数据点，两者都能成功打印出答案来，一模一样，但是第一个就是算跑不过，为啥捏......输入数据又没有空格，按理说不会影响的才对。。