Compilare: user.cpp: In function ‘int main()’: user.cpp:17:26: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[260]’ [-Wformat=] fscanf(in,"%s",&s); ^ user.cpp:12:10: warning: variable ‘c’ set but not used [-Wunused-but-set-variable] char c; ^ user.cpp:13:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&n); ^ user.cpp:17:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%s",&s); ^