Compilare: user.cpp: In function ‘int des(int)’: user.cpp:46:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:64:11: warning: unused variable ‘tata’ [-Wunused-variable] int j,tata=0; ^ user.cpp:67:20: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(x,1605,f); ^