#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define rep(i,n) for(int (i)=0;(i)<(int)(n);++(i)) #define rer(i,l,u) for(int (i)=(int)(l);(i)<=(int)(u);++(i)) #define reu(i,l,u) for(int (i)=(int)(l);(i)<(int)(u);++(i)) #if defined(_MSC_VER) || __cplusplus > 199711L #define aut(r,v) auto r = (v) #else #define aut(r,v) __typeof(v) r = (v) #endif #define each(it,o) for(aut(it, (o).begin()); it != (o).end(); ++ it) #define all(o) (o).begin(), (o).end() #define pb(x) push_back(x) #define mp(x,y) make_pair((x),(y)) #define mset(m,v) memset(m,v,sizeof(m)) #define INF 0x3f3f3f3f #define INFL 0x3f3f3f3f3f3f3f3fLL using namespace std; typedef vector vi; typedef pair pii; typedef vector > vpii; typedef long long ll; template inline void amin(T &x, U y) { if(y < x) x = y; } template inline void amax(T &x, U y) { if(x < y) x = y; } class FastInput { bool _end; public: FastInput() : _end(false) { } operator void*() { return _end ? 0 : (void*)this; } template void read_unsigned(T *res) { T x = 0; for(char c = skip(); '0' <= c && c <= '9'; c = gc()) x = x * 10 + (c - '0'); *res = x; } template void read_signed(T *res) { char c = skip(); bool sign = false; if(c == '-') sign = true, c = gc(); T x = 0; for(; '0' <= c && c <= '9'; c = gc()) x = x * 10 + (c - '0'); *res = !sign ? x : -x; } void read_c_string(char *str, int *len) { int n = 0; for(char c = skip(); !is_delim(c); c = gc()) str[n ++] = c; str[n] = 0; *len = n; } void read_string(std::string *str) { str->clear(); for(char c = skip(); !is_delim(c); c = gc()) *str += c; } void read_line(std::string *str) { str->clear(); for(char c = gc(); c != '\n'; c = gc()) *str += c; if(!str->empty() && (*str)[str->size() - 1] == '\r') str->resize(str->size() - 1); } void read_double(double *res) { std::string buf; read_string(&buf); sscanf(buf.c_str(), "%lf", res); } void read_char(char *res) { *res = skip(); } void read_string_buf(char *res, int n) { *res = skip(); } FastInput &operator()(char &res) { read_char(&res); return *this; } FastInput &operator()(int &res) { read_signed(&res); return *this; } FastInput &operator()(unsigned &res) { read_unsigned(&res); return *this; } FastInput &operator()(long long &res) { read_signed(&res); return *this; } FastInput &operator()(unsigned long long &res) { read_unsigned(&res); return *this; } FastInput &operator()(char *res) { int len; read_c_string(res, &len); return *this; } FastInput &operator()(std::string &res) { read_string(&res); return *this; } FastInput &operator()(double &res) { read_double(&res); return *this; } template FastInput &operator()(T1 &res1, T2 &res2) { return operator()(res1)(res2); } template FastInput &operator()(T1 &res1, T2 &res2, T3 &res3) { return operator()(res1)(res2)(res3); } template FastInput &a(T *a, int n) { for(int i = 0; i < n; ++ i) operator()(a[i]); return *this; } template FastInput &operator()(vector &v) { for(size_t i = 0; i < v.size(); ++ i) operator()(v[i]); return *this; } private: static char gc() { #if defined(__GNUC__) && !defined(__MINGW32__) return (char)getchar_unlocked(); #elif defined(_MSC_VER) return (char)_getchar_nolock(); #else return (char)getchar(); #endif } static bool is_delim(char c) { return c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == EOF; } char skip() { if(_end) return EOF; char c; for(c = gc(); c != -1 && is_delim(c); c = gc()) ; if(c == EOF) _end = true; return c; } } in; class FastOutput { public: template void print_unsigned(T x) { char buf[24]; int n = 0; do buf[n ++] = x % 10, x /= 10; while(x != 0); while(n > 0) pc('0' + buf[-- n]); } template void print_signed(T x) { char buf[24]; int n = 0; bool sign = false; if(x < 0) sign = true; //depends on the -x % y behaviour do buf[n ++] = x % 10, x /= 10; while(x != 0); if(!sign) { while(n > 0) pc('0' + buf[-- n]); } else { pc('-'); while(n > 0) pc('0' - buf[-- n]); } } void print_c_string(const char *str) { for(const char *p = str; *p; ++ p) pc(*p); } void print_string(const std::string &str) { print_c_string(str.c_str()); } void print_double(double x, int digits) { //|res| < 2^1024 ~ 10^308 char buf[512]; #ifdef _MSC_VER sprintf_s(buf, "%.*f", digits, x); #else sprintf(buf, "%.*f", digits, x); #endif print_c_string(buf); } void print_char(char x) { pc(x); } FastOutput &operator()(char x) { print_char(x); return *this; } FastOutput &operator()(int x) { print_signed(x); return *this; } FastOutput &operator()(unsigned x) { print_unsigned(x); return *this; } FastOutput &operator()(long long x) { print_signed(x); return *this; } FastOutput &operator()(unsigned long long x) { print_unsigned(x); return *this; } FastOutput &operator()(const char *str) { print_c_string(str); return *this; } FastOutput &operator()(const std::string &str) { print_string(str); return *this; } FastOutput &operator()(double x) { print_double(x, 10); return *this; } template FastOutput &operator()(T1 x1, T2 x2) { return operator()(x1)(x2); } template FastOutput &operator()(T1 x1, T2 x2, T3 x3) { return operator()(x1)(x2)(x3); } template FastOutput &operator()(T1 x1, T2 x2, T3 x3, T4 x4) { return operator()(x1)(x2)(x3)(x4); } private: static void pc(char c) { #if defined(__GNUC__) && !defined(__MINGW32__) putchar_unlocked(c); #elif defined(_MSC_VER) _putchar_nolock(c); #else putchar(c); #endif } } out; class FastOutputN { public: template FastOutputN &operator()(T1 x1) { out(x1)('\n'); return *this; } template FastOutputN &operator()(T1 x1, T2 x2) { out(x1, x2)('\n'); return *this; } template FastOutputN &operator()(T1 x1, T2 x2, T3 x3) { out(x1, x2, x3)('\n'); return *this; } template FastOutputN &operator()(T1 x1, T2 x2, T3 x3, T4 x4) { out(x1, x2, x3, x4)('\n'); return *this; } template FastOutputN &a(const T *a, int n) { for(int i = 0; i < n; ++ i) { if(i != 0) out(' '); out(a[i]); } out('\n'); return *this; } template FastOutputN &operator()(const vector &v) { for(size_t i = 0; i < v.size(); ++ i) { if(i != 0) out(' '); out(v[i]); } out('\n'); return *this; } } outn; struct UnionFindWithRight { vector data; void init(int n) { data.resize(n); rep(i, n) data[i] = {-1, i}; } bool unionSet(int x, int y) { x = root(x); y = root(y); if(x != y) { if(data[y].first < data[x].first) swap(x, y); data[x].first += data[y].first; data[y].first = x; amax(data[x].second, data[y].second); } return x != y; } bool findSet(int x, int y) { return root(x) == root(y); } int root(int x) { return data[x].first < 0 ? x : data[x].first = root(data[x].first); } int getRight(int x) { return data[root(x)].second; } int size(int x) { return -data[root(x)].first; } }; int main() { int n; while(in(n)) { vector a(n); in(a); vpii v(n); rep(i, n) v[i] = {a[i], i}; sort(all(v)); UnionFindWithRight uf; uf.init(n); vector wall(n + 1, true); wall[0] = wall[n] = false; vector ans(n, -1); for(int r = n - 1; r >= 0; ) { int t = v[r].first; int l = r; for(; 0 < l && v[l - 1].first == t; -- l); int L = v[l].second, R = v[r].second; for(int i = L; i <= R;) { if(ans[i] == -1) { ans[i] = t; if(wall[i] && ans[i - 1] != -1) { wall[i] = false; uf.unionSet(i, i - 1); } if(wall[i + 1] && ans[i + 1] != -1) { wall[i + 1] = false; uf.unionSet(i, i + 1); } ++ i; } else { i = uf.getRight(i) + 1; } } r = l - 1; } outn(ans); } return 0; }