Compilare: user.cpp: In function ‘void visit(int)’: user.cpp:17:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < G[node].size(); i ++) ~~^~~~~~~~~~~~~~~~ user.cpp:17:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(int i = 0 ; i < G[node].size(); i ++) ^~~ user.cpp:19:10: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ L.push_back(node); ^ user.cpp: In function ‘int create(int, int)’: user.cpp:25:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0 ; j < GT[node].size(); j++) ~~^~~~~~~~~~~~~~~~~ user.cpp:30:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int solve()’: user.cpp:41:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int write()’: user.cpp:45:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(S[i].size() > maximNumber) ~~~~~~~~~~~~^~~~~~~~~~~~~ user.cpp:51:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i =0 ; i < S[indx].size(); i++) ~~^~~~~~~~~~~~~~~~ user.cpp:51:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(int i =0 ; i < S[indx].size(); i++) ^~~ user.cpp:53:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ cout<<'\n'; ^~~~ user.cpp:54:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^