Compilare: user.cpp: In function ‘int main()’: user.cpp:33: 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 user.cpp:32: warning: ‘ix’ may be used uninitialized in this function user.cpp:32: warning: ‘jx’ may be used uninitialized in this function