Problems
Remove spaces
include <bits/stdc++.h>
define pb push_back
define pf push_front
define itn int
define ll long long
define sortv sort(v.begin(), v.end())
define reversev reverse(v.begin(), v.end())
define sb substr
define is insert
define fora for (int i=0; i < n; i++) cin >> a[i];
using namespace std; int main() { string a; getline(cin, a); for (int i=0; i < a.length(); i++) { if (a[i] != ' ') cout << a[i]; else if (a[i] != a[i+1]) cout << a[i]; } }