Main.cc: In function ‘int main()’:
Main.cc:60:22: error: request for member ‘push_back’ in ‘aa[i].std::vector::operator[](((std::vector::size_type)j))’, which is of non-class type ‘__gnu_cxx::__alloc_traits >::value_type {aka long long int}’
aa[i][j].push_back(k);
^~~~~~~~~
Main.cc:147:17: warning: unused variable ‘xx’ [-Wunused-variable]
int xx;
^~
Main.cc:48:10: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld", &n);
~~~~~^~~~~~~~~~~~
Main.cc:53:14: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld", &sz[i]);
~~~~~^~~~~~~~~~~~~~~~
Main.cc:59:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld", &k);
~~~~~^~~~~~~~~~~~
Main.cc:76:14: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld", &q);
~~~~~^~~~~~~~~~~~
Main.cc:80:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld", &k);
~~~~~^~~~~~~~~~~~
Main.cc:88:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld", &x);
~~~~~^~~~~~~~~~~~
Main.cc:103:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
int l;scanf("%lld", &l);
~~~~~^~~~~~~~~~~~
Main.cc:110:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld", &x);
~~~~~^~~~~~~~~~~~
Main.cc:116:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld", &x);
~~~~~^~~~~~~~~~~~
Main.cc:140:14: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld", &q);
~~~~~^~~~~~~~~~~~
Main.cc:144:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld", &k);
~~~~~^~~~~~~~~~~~
Main.cc:151:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld", &x);
~~~~~^~~~~~~~~~~~