Eroare de compilare: user.cpp: In function ‘void InitTreap()’: user.cpp:25: error: ‘srand’ was not declared in this scope user.cpp: In function ‘void add(Treap*&)’: user.cpp:55: error: ‘rand’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:78: error: ‘stdin’ was not declared in this scope user.cpp:78: error: ‘freopen’ was not declared in this scope user.cpp:79: error: ‘stdout’ was not declared in this scope user.cpp:81: error: ‘scanf’ was not declared in this scope