Compilare: user.cpp: In function ‘int main()’: user.cpp:13:12: warning: unused variable ‘p’ [-Wunused-variable] double p; ^ user.cpp:15:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%u",&t); ^ user.cpp:19:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%u%u%u",&n,&m,&x); ^ user.cpp:25:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%llu",&nr); ^