P1042 [NOIP2003 普及组] 乒乓球

题目传送门
//P1042.cpp

#include <bits/stdc++.h>

using namespace std;
//每行至多 25 个字母，最多有 2500 行。
const int N = 25 * 2500 + 10;
int a[N];//小华的输赢状态表
int idx;

int main() {
    char tmp;
    while (true) {
        cin >> tmp;
        if (tmp == 'E') break;
        if (tmp == 'W') a[idx++] = 1;
        else if (tmp == 'L')a[idx++] = 0;
    }
    //开始分析11分
    int w = 0, l = 0;
    for (int i = 0; i < idx; i++) {
        if (a[i])w++; else l++;
        if ((w >= 11 || l >= 11) && abs(w - l) >= 2) {
            cout << w << ":" << l << endl;
            //下一局开始，清零
            w = l = 0;
        }
    }
    cout << w << ":" << l << endl;

    //两种计分制中间需要有空行
    cout<<endl;

    //开始分析21分
    w = 0, l = 0;
    for (int i = 0; i < idx; i++) {
        if (a[i])w++; else l++;
        if ((w >= 21 || l >= 21) && abs(w - l) >= 2) {
            cout << w << ":" << l << endl;
            //下一局开始，清零
            w = l = 0;
        }
    }
    cout << w << ":" << l << endl;

    return 0;
}