func_code_string: #include <bits/stdc++.h>   using namespace std;   void run();   signed main() {     ios::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     cout << fixed << setprecision(3);     srand(42);     run();   }   template <typename T1, typename T2>   bool mini(T1 &a, const T2 &b) {     if (a > b) {       a = b;       return true;     }     return false;   }   template <typename T1, typename T2>   bool maxi(T1 &a, const T2 &b) {     if (a < b) {       a = b;       return true;     }     return false;   }   const long long N = 52;   long long rcnt[N];   long long ccnt[N];   void run() {     long long n, m;     cin >> n >> m;     set<long long> masks;     for (long long i = 0; i < n; i++) {       long long kek = 0;       for (long long j = 0; j < m; j++) {         char c;         cin >> c;         if (c ==  # ) kek |= (1LL << j);       }       masks.insert(kek);     }     for (auto it1 = masks.begin(); it1 != masks.end(); it1++) {       auto it2 = it1;       it2++;       for (; it2 != masks.end(); it2++) {         if ((*it1) & (*(it2))) {           cout <<  No ;           return;         }       }     }     cout <<  Yes ;   }   