Eroare de compilare: user.cpp: In function ‘void read()’: user.cpp:34: error: ‘fscanf_s’ was not declared in this scope user.cpp:29: warning: ignoring return value of ‘FILE* fopen(const char*, const char*)’, declared with attribute warn_unused_result user.cpp:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘void solve()’: user.cpp:71: warning: comparison between signed and unsigned integer expressions user.cpp:87: warning: comparison between signed and unsigned integer expressions user.cpp:103: warning: comparison between signed and unsigned integer expressions user.cpp:67: warning: ignoring return value of ‘FILE* fopen(const char*, const char*)’, declared with attribute warn_unused_result