Compilare: user.cpp: In function ‘void citeste(int&)’: user.cpp:13: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result user.cpp:19: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result user.cpp:25: 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:87: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:64: warning: unused variable ‘next’ user.cpp:64: warning: unused variable ‘x’ user.cpp:65: warning: unused variable ‘start_actual’ user.cpp:65: warning: unused variable ‘sfarsit_actual’ user.cpp:66: warning: unused variable ‘contor’ user.cpp:67: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:68: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:69: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result