Compilare: user.cpp: In function ‘int main()’: user.cpp:127:6: warning: unused variable ‘i’ [-Wunused-variable] int i; ^ user.cpp:128:15: warning: unused variable ‘aux’ [-Wunused-variable] struct graf *aux; ^ user.cpp: In function ‘void citire()’: user.cpp:28:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d", &n, &m); ^ user.cpp:33:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d%d", &x, &y, &z); ^