Compilare: user.cpp: In function ‘void read()’: user.cpp:23:21: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long long unsigned int*’ [-Wformat=] fscanf(f,"%d",&n); ^ user.cpp:24:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=1;i<=n+1;i++) ^ user.cpp:25:28: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long long unsigned int*’ [-Wformat=] fscanf(f,"%d",&a[i]); ^ user.cpp:23:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.cpp:25:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&a[i]); ^