Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:30: error: expected ‘)’ before ‘pi’ user.cpp:30: warning: too few arguments for format user.cpp:7: warning: unused variable ‘j’ user.cpp:12: warning: unused variable ‘sum’ user.cpp:9: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:11: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:15: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result