Compilare: user.cpp: In function ‘int main()’: user.cpp:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:42: warning: array subscript is above array bounds user.cpp:50: warning: array subscript is above array bounds user.cpp:58: warning: array subscript is above array bounds user.cpp:65: warning: array subscript is above array bounds