Compilare: user.cpp: In function ‘int main()’: user.cpp:47: warning: format ‘%d’ expects type ‘int*’, but argument 2 has type ‘short int*’ user.cpp:47: warning: format ‘%d’ expects type ‘int*’, but argument 3 has type ‘short int*’ user.cpp:112: warning: null argument where non-null required (argument 1) user.cpp:45: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:46: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:47: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result