Compilare: main.cpp: In constructor 'rangeMinimumQuery::rangeMinimumQuery()': main.cpp:12:10: warning: 'rangeMinimumQuery::created' will be initialized after [-Wreorder] bool created; ^~~~~~~ main.cpp:11:12: warning: 'unsigned int** rangeMinimumQuery::rmq' [-Wreorder] uint **rmq ,*v; ^~~ main.cpp:25:5: warning: when initialized here [-Wreorder] rangeMinimumQuery(): created(false), rmq(nullptr), v(nullptr) {} ^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:188:32: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("lca.in","r",stdin); ^ main.cpp:189:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("lca.out","w",stdout); ^ main.cpp:208:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%u %u",&x,&y); ^