Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:13:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v[nod].size();i++){ ~^~~~~~~~~~~~~~ user.cpp: In function ‘void bfs(int)’: user.cpp:37:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v[nc].size();i++){ ~^~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:51:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&n); ^ user.cpp:53:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&sts[i]); ^ user.cpp:55:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&x); ^ user.cpp: In function ‘void bfs(int)’: user.cpp:27:6: warning: ‘s’ is used uninitialized in this function [-Wuninitialized] s+=sts[p]; ~^~~~~~~~