Compilare: user.cpp: In function ‘void ciur(int)’: user.cpp:9: warning: unused variable ‘prime’ user.cpp: In function ‘int main()’: user.cpp:25: warning: unused variable ‘j’ user.cpp:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result