50pts

#2 #3 #4 #5 WA 求调

#include <iostream>
#include <cmath>
using namespace std;
char a;
int cnt_11_a,cnt_11_b,cnt_21_a,cnt_21_b,cnt_21[10000000][2],cnt_21_;
bool k_11,k_21;
int main(){
	while(cin >> a){
		if(a == 'E'){
			cout << cnt_11_a << ':' << cnt_11_b << endl << endl;
			cnt_21[cnt_21_][0] = cnt_21_a;
			cnt_21[cnt_21_][1] = cnt_21_b;
			cnt_21_++;
			break;
		}
		if(a == 'W'){
			cnt_11_a++;
			cnt_21_a++;
		}
		else if(a == 'L'){
			cnt_11_b++;
			cnt_21_b++;
		}
		if(cnt_11_a + cnt_11_b == 11 || k_11 == 1){
			if(abs(cnt_11_a - cnt_11_b) >= 2){
				cout << cnt_11_a << ':' << cnt_11_b << endl;
				cnt_11_a = 0;
				cnt_11_b = 0;
				k_11 = 0;
			}else {
				k_11 = 1;
			}
		}
		if(cnt_21_a + cnt_21_b == 21 || k_21 == 1){
			if(abs(cnt_21_a - cnt_21_b) >= 2){
				//cout << cnt_21_a << ':' << cnt_21_b << endl;
				cnt_21[cnt_21_][0] = cnt_21_a;
				cnt_21[cnt_21_][1] = cnt_21_b;
				cnt_21_++;
				cnt_21_a = 0;
				cnt_21_b = 0;
				k_21 = 0;
			}else {
				k_21 = 1;
			}
		}
	}
	for(int i = 0;i < cnt_21_;i++){
		cout << cnt_21[i][0] << ':' << cnt_21[i][1] << endl;
	}
	return 0;
}