Compilare: user.cpp: In constructor ‘_treap::_treap(int)’: user.cpp:18:17: warning: ‘_treap::r’ will be initialized after [-Wreorder] _treap *l, *r; ^ user.cpp:17:19: warning: ‘int _treap::vmin’ [-Wreorder] int key, pri, vmin, vmax, dmin; ^ user.cpp:20:5: warning: when initialized here [-Wreorder] _treap(int _key) : key(_key), pri(rand()), l(nullptr), r(nullptr), vmin(_key), vmax(_key), dmin(INF) {} ^ user.cpp: In function ‘int main()’: user.cpp:97:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zeap.in", "r", stdin); ^ user.cpp:98:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zeap.out", "w", stdout); ^ user.cpp:110:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x); ^ user.cpp:115:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x); ^ user.cpp:120:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x); ^