Compilare: user.cpp: In function ‘int main()’: user.cpp:13: warning: writing into constant object (argument 3) user.cpp:13: warning: format ‘%d’ expects type ‘int*’, but argument 3 has type ‘const char*’ user.cpp:13: warning: too many arguments for format user.cpp:11: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:13: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:12: warning: ‘t’ is used uninitialized in this function