http://codeforces.com/problemset/problem/712/B 水,判断奇偶即可. #include<iostream> #include<string> using namespace std; int main() { string s; ,b = ; cin >> s; ;i < s.size();i++) { if(s[i] == 'L') a++; else if(s[i] == 'R') a--; else if(s[i]…