Compilare: user.cpp: In function ‘void BFS(int)’: user.cpp:75:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < G[vf].size(); i++) ^ user.cpp: In function ‘void Rezolva()’: user.cpp:86:16: warning: unused variable ‘i’ [-Wunused-variable] int vf = 1,i,vf2; ^ user.cpp: In function ‘void Citire()’: user.cpp:47:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d",&N,&M); ^ user.cpp:51:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d",&x,&y); ^