Compilare: main.cpp: In function 'bool exists(int)': main.cpp:37:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | for(int i = 0; i < h[rest].size(); i ++) | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void solve()': main.cpp:60:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 60 | for(int i = 1; i <= n; i ++) | ^~~ main.cpp:85:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 85 | fout << -1; | ^~~~