func_code_string: #include <bits/stdc++.h>   using namespace std;   void solve() {     int n;     cin >> n;     int a[n];     for (int i = 0; i < n; i++) cin >> a[i];     vector<int> V;     int px = 0;     while (px < n) {       if (a[px] == 1) {         if (px < n && a[px + 1] == 1) {           px += 2;           continue;         }         V.push_back(px);       }       px++;     }     px = 0;     cout << (n - V.size()) <<   n ;     for (int i = 0; i < n; i++) {       while (px < (V.size()) && V[px] < i) px++;       if (px < (V.size()) && V[px] == i) continue;       cout << a[i] <<    ;     }     cout <<   n ;   }   int main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     int t;     cin >> t;     while (t) {       t--;       solve();     }   }   