Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:66:90: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(val[0] <= cheie[nod] && cheie[nod] < val[1] && maxime[f[0]] <= cheie[nod] && minime[f[1]] >= cheie[nod] || val[0] > cheie[nod] && cheie[nod] >= val[1] && minime[f[0]] >= cheie[nod] && maxime[f[1]] <= cheie[nod]) ^ user.cpp: In function ‘void citire()’: user.cpp:16:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&N); ^ user.cpp:20:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^ user.cpp:26:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&cheie[i]); ^ user.cpp:28:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&prioritate[i]); ^ user.cpp: In function ‘int main()’: user.cpp:89:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("treap.in","r",stdin); ^ user.cpp:90:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("treap.out","w",stdout); ^