Compilare: user.cpp: In function ‘int main()’: user.cpp:8:29: warning: format ‘%lu’ expects argument of type ‘long unsigned int*’, but argument 3 has type ‘unsigned int*’ [-Wformat=] fscanf(f1,"%lu%lu",&n,&k); ^ user.cpp:8:29: warning: format ‘%lu’ expects argument of type ‘long unsigned int*’, but argument 4 has type ‘unsigned int*’ [-Wformat=] user.cpp:10:30: warning: format ‘%lu’ expects argument of type ‘long unsigned int*’, but argument 3 has type ‘unsigned int*’ [-Wformat=] fscanf(f1,"%lu",&v[i]), ^ user.cpp:22:32: warning: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 3 has type ‘unsigned int’ [-Wformat=] fprintf(f2,"%lu ",j); ^ user.cpp:8:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%lu%lu",&n,&k); ^ user.cpp:11:16: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] s+=v[i]; ^