Compilare: user.cpp: In constructor ‘Rmq::Rmq(int, const std::vector<int>&)’: user.cpp:18:23: warning: ‘Rmq::work’ will be initialized after [-Wreorder] vector<vector<int>>work; ^ user.cpp:17:15: warning: ‘std::vector<int> Rmq::A’ [-Wreorder] vector<int>A; ^ user.cpp:19:4: warning: when initialized here [-Wreorder] Rmq(int n = 0, const vector<int>&Array = vector<int>()) : ^ user.cpp: In function ‘void cit()’: user.cpp:48:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &n , &m, &d); ^ user.cpp:52:42: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int j=0;j<m;++j)scanf("%d",&a[i][j]); ^ user.cpp: In function ‘int main()’: user.cpp:91:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("smax.in", "r", stdin); ^ user.cpp:92:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("smax.out", "w", stdout); ^ user.cpp:93:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^