#include #include #include #include #include #include #include #include #include #include #include #define vv(a, b, c, d) vector >(a, vector(b, c)) #define vvi vector > #define vvl vector > #define vll vector typedef long long int ll; typedef long double ld; using namespace std; int INF = 1000000000; struct LazySegmentTree { private: int n; vector node, lazy; vector lazyFlag; public: LazySegmentTree(vector v) { int sz = (int)v.size(); n = 1; while(n < sz) n *= 2; node.resize(2*n-1); lazy.resize(2*n-1, INF); lazyFlag.resize(2*n-1, false); for(int i=0; i=0; i--) node[i] = min(node[i*2+1], node[i*2+2]); } void lazyEvaluate(int k, int l, int r) { if(lazyFlag[k]) { node[k] = lazy[k]; if(r - l > 1) { lazy[k*2+1] = lazy[k*2+2] = lazy[k]; lazyFlag[k*2+1] = lazyFlag[k*2+2] = true; } lazyFlag[k] = false; } } void update(int a, int b, int x, int k=0, int l=0, int r=-1) { if(r < 0) r = n; lazyEvaluate(k, l, r); if(b <= l || r <= a) return; if(a <= l && r <= b) { lazy[k] = x; lazyFlag[k] = true; lazyEvaluate(k, l, r); } else { update(a, b, x, 2*k+1, l, (l+r)/2); update(a, b, x, 2*k+2, (l+r)/2, r); node[k] = min(node[2*k+1], node[2*k+2]); } } int find(int a, int b, int k=0, int l=0, int r=-1) { if(r < 0) r = n; lazyEvaluate(k, l, r); if(b <= l || r <= a) return INF; if(a <= l && r <= b) return node[k]; int vl = find(a, b, 2*k+1, l, (l+r)/2); int vr = find(a, b, 2*k+2, (l+r)/2, r); return min(vl, vr); } }; int main(int argc, char const *argv[]) { ll n, a;std::cin >> n; map mp; LazySegmentTree seg( vector(n, INF) ); for(int i=0;i> a; if(mp.find(a)==mp.end()) mp.emplace(a, vll{i, i}); else{ vll p = mp.at(a); p[0] = min(p[0], (ll)i), p[1] = max(p[1], (ll)i); mp.erase(a); mp.emplace(a, p); } } for(auto itr=mp.begin();itr!=mp.end();itr++){ //std::cout << (*itr).first << " " << (*itr).second[0] << " " << (*itr).second[1] << '\n'; seg.update((*itr).second[0], (*itr).second[1]+1, (*itr).first); } for(int i=0;i