Compilare: main.cpp: In function 'long long int unite(long long int, long long int)': main.cpp:44:1: warning: no return statement in function returning non-void [-Wreturn-type] 44 | } | ^ main.cpp: In function 'int main()': main.cpp:67:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 67 | for (int i = 1; i <= n ; i ++ ) | ^~~ main.cpp:71:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 71 | for ( int j = 1 ; j <= m ; j ++ ) | ^~~ main.cpp:84:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::tuple<long long int, long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 84 | for ( int i = 0 ; i < v.size( ) ; i ++ ) | ~~^~~~~~~~~~~