Compilare: user.cpp: In function ‘void back()’: user.cpp:63:10: warning: unused variable ‘as’ [-Wunused-variable] bool as; ^ user.cpp: In function ‘int main()’: user.cpp:89:27: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘short int*’ [-Wformat=] fscanf(f1,"%d%d",&a,&b); ^ user.cpp:89:27: warning: format ‘%d’ expects argument of type ‘int*’, but argument 4 has type ‘short int*’ [-Wformat=] user.cpp:116:29: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 3 has type ‘int’ [-Wformat=] fprintf(f2,"%ld",rez%mod); ^ user.cpp:89:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d%d",&a,&b); ^