Compilare: main.cpp: In function 'void dfs(int)': main.cpp:35:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for (i=0; i<G[x].size(); i++) | ~^~~~~~~~~~~~ main.cpp: In function 'void dfst(int)': main.cpp:48:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | for (i=0; i<GT[x].size(); i++) | ~^~~~~~~~~~~~~ main.cpp: In function 'void afisare()': main.cpp:58:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | {for (j=0; j<CTC[i].size(); j++) | ~^~~~~~~~~~~~~~ In file included from /usr/include/c++/12.2.1/vector:64, from main.cpp:3: In member function 'constexpr void std::vector<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = int; _Alloc = std::allocator<int>]', inlined from 'void citire()' at main.cpp:24:23: /usr/include/c++/12.2.1/bits/stl_vector.h:1278:27: warning: 'x' may be used uninitialized [-Wmaybe-uninitialized] 1278 | if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage) | ~~~~~~~~~~~~~~^~~~~~~~~ main.cpp: In function 'void citire()': main.cpp:18:13: note: 'x' was declared here 18 | { int n,m,x,y,i; | ^