#include<iostream> #include<cstring> #include<string> #include<algorithm> #include<vector> #include<math.h> #include<map> #include<typeinfo> using namespace std; int main() { string s; cin >> s; int len = s.size(); char a = s[0]; char b; for (int i = 1; i < len; i++) { b = s[i]; if (b != a) { cout << b; a = b; } } return 0; } |
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