Compilare: user.cpp: In function ‘int bak(int)’: user.cpp:26:5: warning: unused variable ‘i’ [-Wunused-variable] int i; ^ user.cpp: In function ‘void citire()’: user.cpp:11:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&p); ^ user.cpp:12:49: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int i=1;i<=p;i++) {fscanf(f,"%d",&nr[i]); ^ user.cpp: In function ‘int bak(int)’: user.cpp:42:1: warning: control reaches end of non-void function [-Wreturn-type] } ^