Compilare: user.cpp: In function ‘void apm()’: user.cpp:72:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<lista[1].size(); i++) ^ user.cpp:62:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp: In function ‘void citire()’: user.cpp:52:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d", &n,&m); ^ user.cpp:55:57: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d %d", &a, &aux.nod, &aux.cost); ^