Compilare: user.cpp: In constructor ‘treap::nod::nod(treap::nod*, treap::nod*, int, int, int)’: user.cpp:18:22: warning: ‘treap::nod::t’ will be initialized after [-Wreorder] nod *l, *r, *t; ^ user.cpp:17:13: warning: ‘int treap::nod::P’ [-Wreorder] int P, K, sz; ^ user.cpp:19:9: warning: when initialized here [-Wreorder] nod (nod *_l, nod *_r, int _P, int _K, int _sz): ^~~ user.cpp: In function ‘void slowRead()’: user.cpp:326:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d %d", &N, &K); ^ user.cpp:328:48: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d %d %d", &x[i], &y[i], &z[i]); ^ user.cpp: In function ‘int main()’: user.cpp:335:21: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] srand (time (0)); ^ user.cpp:335:21: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp: In function ‘void Next()’: user.cpp:366:46: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread (buf, 1, maxl, stdin), pntr = 0; ^