Compilare: user.cpp: In function ‘bool Componente()’: user.cpp:34:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[nod].size();i++) ^ user.cpp: In function ‘void Euler()’: user.cpp:62:5: warning: unused variable ‘i’ [-Wunused-variable] int i, nod, nodnou; ^ user.cpp:62:13: warning: unused variable ‘nodnou’ [-Wunused-variable] int i, nod, nodnou; ^ user.cpp: In function ‘void Citire()’: user.cpp:17:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d\n",&N,&M); ^ user.cpp:19:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d\n",&x,&y); ^