求助大佬 只拿了40分

#include <cstdio>
#include <iostream>
#include <algorithm> 
using namespace std;
int main() {
	char c;
	string s;
	//将所有字符放在一个string中 
	while(true) {
		cin >> c;
		s += c;
		if(c == 'E') break;
	}
	
	// q为出现了多少次W   i是循环次数 
	int q = 0,i = 0;
	for(i = 0;;i++) {
		c = s[i];
		if(c == 'W')
			q++;
		if(i%11 == 10){
			cout << q << ":" << 11 - q << endl;
			q = 0;
		}
		if(c == 'E')
			break;
	}
	
	cout << q << ":" << i%11 - q << endl;
	
	cout << endl; 
	q = 0;
	i = 0;
	for(i = 0;;i++) {
		c = s[i];
		if(c == 'W')
			q++;
		if(i%21 == 20){
			cout << q << ":" << 21 - q << endl;
			q = 0;
		}
		if(c == 'E')
			break;
	}
	cout << q << ":" << i%21 - q << endl;
	return 0;
}