#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define popcount __builtin_popcount using namespace std; using namespace atcoder; typedef long long ll; typedef pair P; using mint=modint998244353; template struct BIT{ vector bit; int size; BIT(int n):size(n), bit(n+1, 0){} T sum(int i){ //[0, i) T s=0; while(i>0){ s+=bit[i]; i-=(i&(-i)); } return s; } T sum(int l, int r){ //[l, r) return sum(r)-sum(l); } void add(int i, T x){ i++; while(i<=size){ bit[i]+=x; i+=(i&(-i)); } } }; template struct LazySegmentTree{ using F=function; using G=function; using H=function; int sz; vector data; vector lazy; const F f; const G g; const H h; const Monoid e1; const OperatorMonoid e0; LazySegmentTree(int n, const F f, const G g, const H h, const Monoid &e1, const OperatorMonoid &e0): f(f), g(g), h(h), e1(e1), e0(e0){ sz=1; while(sz v){ for(int i=0; i=0; i--) data[i]=f(data[2*i+1], data[2*i+2]); } void eval(int k, int l, int r){ if(lazy[k]!=e0){ data[k]=g(data[k], lazy[k], r-l); if(k>n; vector

v(n); for(int i=0; i>a[i]; v[i]=P(a[i], i); } sort(v.begin(), v.end()); BIT bit(n); using Pm=pair; auto f=[&](mint a, mint b){ return a+b; }; auto g=[&](mint a, Pm x, int len){ return a*x.first+x.second*len; }; auto h=[&](Pm x, Pm y){ return Pm(x.first*y.first, y.first*x.second+y.second); }; LazySegmentTree seg1(n, f, g, h, mint(0), Pm(1, 0)); LazySegmentTree seg2(n, f, g, h, mint(0), Pm(1, 0)); mint ans=0; mint inv2=mint(2).inv(); mint p2[200020], p2i[200020]; p2[0]=p2i[0]=1; for(int i=1; i<=n; i++){ p2[i]=p2[i-1]*2; p2i[i]=p2i[i-1]*inv2; } for(int z=0; z