func_code_string: #include <bits/stdc++.h>   using namespace std;   struct group {     int sz;     vector<int> worst, best;     group(vector<int>& a)         : sz(1), worst(a.begin(), a.end()), best(a.begin(), a.end()) {}     bool operator<(const group& a) const {       for (int i = 0; i < best.size(); i++)         if (best[i] >= a.worst[i]) return false;       return true;     }     struct group& operator+=(const group& a) {       sz += a.sz;       for (int i = 0; i < best.size(); i++) {         best[i] = max(best[i], a.best[i]);         worst[i] = min(worst[i], a.worst[i]);       }       return *this;     }   };   set<group> positions;   int main() {     int n, k;     scanf( %d %d , &n, &k);     while (n--) {       vector<int> skills(k, 0);       for (int i = 0; i < k; i++) scanf( %d , &skills[i]);       group player = group(skills);       auto f = positions.lower_bound(player), l = positions.upper_bound(player);       while (f != l) {         player += *f;         f = positions.erase(f);       }       positions.insert(f, player);       printf( %d n , positions.rbegin()->sz);     }     return 0;   }   