Merkkijono

input/code.cpp: In function 'int main()':
input/code.cpp:9:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j=0;pos == -1 && j+1<s.size();j++) {
                                             ^
input/code.cpp:15:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         while(k < s.size() && s[k]==s[pos]) k++;
                          ^
input/code.cpp:16:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if(k<s.size()) t += s.substr(k);
                     ^

#include<iostream>
using namespace std;

int main() {
    string s;
    cin>>s;
    for(int i=0;i<1000;i++) {
        int pos = -1;
        for(int j=0;pos == -1 && j+1<s.size();j++) {
            if(s[j] == s[j+1]) pos = j;   
        }
        if ( pos == -1) break;
        string t = s.substr(0,pos);
        int k = pos;
        while(k < s.size() && s[k]==s[pos]) k++;
        if(k<s.size()) t += s.substr(k);
        s = t;
    }
    cout<<s<<endl;
}

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