Compilare: user.cpp: In function ‘void init()’: user.cpp:56:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<solutie.size();i++) ^ user.cpp: In function ‘void solve(int)’: user.cpp:86:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<G[nou].size();i++) ^ user.cpp: In function ‘void read()’: user.cpp:97:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:102:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&x,&y); ^