Compilare: main.cpp: In function 'void euler(int, int)': main.cpp:62:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[nod].size();++i) ~^~~~~~~~~~~~~~ main.cpp: In function 'void citeste()': main.cpp:17:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d\n",&n,&m,&q); ^ main.cpp:20:22: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s",vv+1); ^ main.cpp: In function 'void afisare()': main.cpp:92:39: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d%d",&x1,&y1,&x2,&y2); ^