teams.cpp:1:32: warning: '-std=c++11' is not an option that controls warnings [-Wpragmas]
1 | #pragma GCC diagnostic warning "-std=c++11"
| ^~~~~~~~~~~~
teams.cpp: In function 'void init(int, int*, int*)':
teams.cpp:16:15: warning: declaration of 'N' shadows a global declaration [-Wshadow]
16 | void init(int N, int A[], int B[]) {
| ~~~~^
teams.cpp:13:11: note: shadowed declaration is here
13 | const int N=5e5+5;
| ^
teams.cpp: In function 'int can(int, int*)':
teams.cpp:33:19: warning: comparison of integer expressions of different signedness: 'std::set<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} [-Wsign-compare]
33 | if (myset.size()<vk[i]) return 0;