Compilare: user.cpp: In function ‘int main()’: user.cpp:15:21: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[5005]’ [-Wformat=] fscanf(f,"%s",&a); ^ user.cpp:11:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j; ^ user.cpp:14:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.cpp:15:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s",&a); ^