how compress string in c
#include <bits/stdc++.h> using namespace std; class Solution { public: string solve(string s) { string ret = ""; for(int i = 0; i < s.size(); i++){ if(ret.size() && ret.back() == s[i]){ continue; } ret += s[i]; } return ret; } }; int main(){ Solution ob; cout << (ob.solve("heeeeelllllllloooooo")); }