Merkkijono

input/code.cpp: In function 'int main()':
input/code.cpp:10:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i = 1; i < s.size(); i++) {
                              ^
input/code.cpp:13:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int o = i; o < s.size(); o++) {
                                ^

#include <iostream>
#include <string>
using namespace std;
string s;
bool ok;
int main() {
	cin >> s;
	while (1) {
		ok = true;
		for (int i = 1; i < s.size(); i++) {
			if (s.at(i) == s.at(i-1)) {
				ok = false;
				for (int o = i; o < s.size(); o++) {
					s.erase(s.begin() + i);
					if (s.size() == 1 || s.at(i) != s.at(i-1)) break;
				}
				s.erase(s.begin() + i-1);
			}	
		}
		if (ok) break;
	}
	cout << s << endl;
}	

Test 1

Verdict: ACCEPTED

Test 2

Verdict: RUNTIME ERROR

terminate called after throwing an instance of 'std::out_of_range'
  what():  basic_string::at

Test 3

Verdict: ACCEPTED

Test 4

Verdict: WRONG ANSWER

Test 5

Verdict: WRONG ANSWER

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: WRONG ANSWER

Test 10

Verdict: ACCEPTED