Merkkijono

input/code.cpp: In function 'int main()':
input/code.cpp:9:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<s.size(); i++) {
                        ^

#include <bits/stdc++.h>

using namespace std;

string s;

int main() {
	cin >> s;
	for(int i=0; i<s.size(); i++) {
		if(s[i]==s[i+1]) {
			s.erase(i, s.find_first_not_of(s[i], i)-i);
			i=-1;
		}
	}
	cout << s;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED