Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:60: error: invalid conversion from ‘int (*)(const void*, const void*)’ to ‘size_t’ /usr/include/stdlib.h:756: error: too few arguments to function ‘void qsort(void*, size_t, size_t, int (*)(const void*, const void*))’ user.cpp:60: error: at this point in file user.cpp:52: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:53: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:55: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:59: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result