#pragma GCC target ("avx") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") //#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native") #define _USE_MATH_DEFINES #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 using namespace std; using ll = int_fast64_t; using ld = long double; #define int ll #define all(a) (a).begin(),(a).end() #define fs first #define sc second #define xx first #define yy second.first #define zz second.second #define H pair #define P pair> #define Q(i,j,k) mkp(i,mkp(j,k)) #define rep(i,n) for(int (i) = 0 ; (i) < (n) ; (i)++) #define rng(i,s,n) for(int (i) = (s) ; (i) < (n) ; (i)++) #define mkp make_pair #define vec vector #define pb emplace_back #define crdcomp(b) sort(all((b)));(b).erase(unique(all((b))),(b).end()) #define getidx(b,i) lower_bound(all(b),(i))-b.begin() #define ssp(i,n) (i==(ll)(n)-1?"\n":" ") #define ctoi(c) (int)(c-'0') #define itoc(c) (char)(c+'0') #define pp(x,y) pb(H{x,y}) #define ppp(x,y,z) pb(Q(x,y,z)) #define cdf int q810; cin>>q810; rep(q114,q810) //#define endl "\n" constexpr int mod = 1e9 + 7; constexpr int Mod = 998244353; constexpr int MXN = 500000 + 100; constexpr ld EPS = 1e-10; constexpr ll inf = 3 * 1e18; constexpr int Inf = 15 * 1e8; const vecdx{ -1,1,0,0 }, dy{ 0,0,-1,1 }; templatebool chmax(T& a, const T& b) { if (a < b) { a = b; return 1; } return 0; } templatebool chmin(T& a, const T& b) { if (b < a) { a = b; return 1; } return 0; } ll read() { ll u, k = scanf("%lld", &u); return u; } string reads() { string s; cin >> s; return s; } H readh(bool g = 0) { H u; ll k = scanf("%lld %lld", &u.fs, &u.sc); if (g) u.fs--, u.sc--; return u; } void printh(H t) { printf("%lld %lld\n", t.fs, t.sc); } bool inarea(H t, int h, int w) { return 0 <= t.fs && t.fs < h && 0 <= t.sc && t.sc < w; } ll gcd(ll i, ll j) { return j ? gcd(j, i % j) : i; } ll mod_pow(ll x, ll n, ll p = mod) { ll res = 1; while (n > 0) { if (n & 1) res = res * x % p; x = x * x % p; n >>= 1; } return res; }//x^n%p ll bitcount(ll x) { int sum = 0; for (int i = 0; i < 60; i++)if ((1ll << i) & x) sum++; return sum; } /*constexpr int fn_ = 1000005; ll fact_[fn_], comp_[fn_]; ll comb(ll x, ll y, ll Mod = mod) { if (!fact_[0]) { fact_[0] = 1; comp_[0] = 1; for (int i = 1; i < fn_; i++) fact_[i] = fact_[i - 1] * i % Mod; comp_[fn_ - 1] = mod_pow(fact_[fn_ - 1], Mod - 2, Mod); for (int i = fn_ - 2; i > 0; i--) comp_[i] = comp_[i + 1] * (i + 1) % Mod; } if (x < y) return 0; return fact_[x] * comp_[x - y] % Mod * comp_[y] % Mod; }*/ //-------------------------------------------------------------- int n; veca; int sq;//バケットサイズ vecc[5000][2];//これに入った後使える個数 vecd[5000];//このバケットに入っているもの H e[5000]; signed main() { cin >> n; sq = sqrt(n); rep(i, n) { a.pb(read()); d[i / sq].pb(a[i]); } int m = (n - 1) / sq + 1; rep(i, m) { e[i].fs = i * sq; e[i].sc = min(n, (i + 1) * sq); sort(all(d[i])); } rep(i, m) { c[i][0].pb(0);//魔境 c[i][1].pb(0); for (auto g : d[i]) { //g以上d[i][g+1]未満の値が来た場合 int sum = 0, t = g; rng(j, e[i].fs, e[i].sc) { if (a[j] <= t) { t = a[j]; sum++; } } c[i][0].pb(sum); sum = 0, t = g; for (int j = e[i].sc - 1; j >= e[i].fs; j--) { if (a[j] <= t) { t = a[j]; sum++; } } c[i][1].pb(sum); } } int ans = 0; rep(i, n) { //左方向 int t = a[i]; for (int j = i - 1; j >= e[i / sq].fs; j--) { if (a[j] > a[i]) goto loop; if (a[j] < t) ans++, t = a[j]; } for (int j = i / sq - 1; j >= 0; j--) { int k = lower_bound(all(d[j]), t) - d[j].begin(); if (d[j][d[j].size() - 1] > a[i]) { for (int z = e[j].sc - 1; z >= e[j].fs; z--) { if (a[z] > a[i]) goto loop; if (a[z] < t) ans++, t = a[z]; } } ans += c[j][1][k]; } loop:; t = a[i]; rng(j, i + 1, e[i / sq].sc) { if (a[j] > a[i]) goto roop; if (a[j] < t) { ans++; t = a[j]; } } rng(j, i / sq + 1, m) { int k = lower_bound(all(d[j]), t) - d[j].begin(); if (d[j][d[j].size() - 1] > a[i]) { for (int z = e[j].fs; z < e[j].sc; z++) { if (a[z] > a[i]) goto roop; if (a[z] < t) ans++, t = a[z]; } } ans += c[j][0][k]; } roop:; } cout << ans << endl; }