Compilare: user.cpp: In function ‘void ssnd(int, int&, int&)’: user.cpp:33:15: warning: the address of ‘double pow(double, double)’ will never be NULL [-Waddress] if (pow != 0) { ^ user.cpp: In function ‘int main()’: user.cpp:51:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^ user.cpp:55:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &x); ^