Compilare: main.cpp: In function 'void bfs()': main.cpp:51:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < muchii[nod].size(); ++i) ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void citire()': main.cpp:77:28: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d",&n,&d); ^ main.cpp:81:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d",&x,&y); ^