Compilare: user.cpp: In function ‘void Get(int&)’: user.cpp:28: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result user.cpp:33: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result user.cpp: In function ‘int main()’: user.cpp:154: warning: comparison between signed and unsigned integer expressions user.cpp:157: warning: comparison between signed and unsigned integer expressions user.cpp:177: warning: comparison between signed and unsigned integer expressions user.cpp:179: warning: comparison between signed and unsigned integer expressions user.cpp:189: warning: comparison between signed and unsigned integer expressions user.cpp:190: warning: comparison between signed and unsigned integer expressions user.cpp:192: warning: comparison between signed and unsigned integer expressions user.cpp:207: warning: comparison between signed and unsigned integer expressions user.cpp:81: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:82: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result