View Compilation Error

0_0_38703735_6493.cpp: In function 'void solve()':
0_0_38703735_6493.cpp:45:9: error: 'class std::set<std::pair<int, int> >' has no member named 'emplace_back'; did you mean 'emplace_hint'?
   45 |     ans.emplace_back(5, 5);
      |         ^~~~~~~~~~~~
      |         emplace_hint
0_0_38703735_6493.cpp:46:9: error: 'class std::set<std::pair<int, int> >' has no member named 'emplace_back'; did you mean 'emplace_hint'?
   46 |     ans.emplace_back(-5, -5);
      |         ^~~~~~~~~~~~
      |         emplace_hint