Compilare: main.cpp: In function 'bool bfs(int)': main.cpp:31:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<Muchii[nodCurent].size();j++) ~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void read()': main.cpp:51:26: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&teste); ^ main.cpp:54:26: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ main.cpp:60:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&x,&y); ^