Eroare de compilare: user.cpp: In function ‘int random()’: user.cpp:232:14: error: new declaration ‘int random()’ int random ( ) ^ In file included from /usr/include/c++/4.8/cstdlib:72:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:47, from user.cpp:3: /usr/include/stdlib.h:327:17: error: ambiguates old declaration ‘long int random()’ extern long int random (void) __THROW; ^ user.cpp: In function ‘int main()’: user.cpp:373:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("metro.in" , "r", stdin) ; ^ user.cpp:374:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("metro.out" , "w", stdout) ; ^