Compilare: main.cpp:5: warning: ignoring '#pragma gcc optimize' [-Wunknown-pragmas] 5 | #pragma gcc optimize("O3") | main.cpp:4:37: warning: bad option '-f unroll-loops' to pragma 'optimize' [-Wpragmas] 4 | #pragma GCC optimize(" unroll-loops") | ^ main.cpp:18:38: warning: bad option '-f unroll-loops' to attribute 'optimize' [-Wattributes] 18 | void push_lazy(int node,int st,int dr) | ^ main.cpp:28:59: warning: bad option '-f unroll-loops' to attribute 'optimize' [-Wattributes] 28 | void update(int node,int st,int dr,int qst,int qdr,int val) | ^ main.cpp:52:34: warning: bad option '-f unroll-loops' to attribute 'optimize' [-Wattributes] 52 | void build(int node,int st,int dr) | ^ main.cpp:65:22: warning: bad option '-f unroll-loops' to attribute 'optimize' [-Wattributes] 65 | int check (int weight) | ^ main.cpp: In function 'int check(int)': main.cpp:71:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | for(j=0;j<qu[i].size();j++) | ~^~~~~~~~~~~~~ main.cpp: At global scope: main.cpp:92:10: warning: bad option '-f unroll-loops' to attribute 'optimize' [-Wattributes] 92 | int main() | ^