Compilare: user.cpp: In function ‘int main()’: user.cpp:11:26: warning: format ‘%llu’ expects argument of type ‘long long unsigned int*’, but argument 3 has type ‘int*’ [-Wformat=] fscanf(f,"%llu \n",&n); ^ user.cpp:27:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1;j<=k;j++) ^ user.cpp:11:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%llu \n",&n); ^ user.cpp:15:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%llu \n",&test); ^