// includes {{{ #include #include #include #include #include #include #include #include #include #include #include #include #include #include // #include // #include // #include // #include // }}} using namespace std; using ll = long long; // .add(i, v) : bit[i] += v // .get(i) : bit[i] // .sum(i) : bit[0] + ... + bit[i] // .range(l, r) : bit[l] + ... + bit[r] // .lower_bound(T v) : min i that satisfies .sum(i) >= v // - use only when bit[i] >= 0 for all i > 0 /// --- Binary Indexed Tree {{{ /// #include #include template < class T = long long > struct BinaryIndexedTree { using size_type = std::size_t; size_type n, m; T identity; std::vector< T > data; BinaryIndexedTree() : n(0) {} BinaryIndexedTree(int n, T identity = T()) : n(n), identity(identity), data(n, identity) { m = 1; while(m < n) m <<= 1; } void add(size_type i, T x) { assert(i < n); i++; while(i <= n) { data[i - 1] = data[i - 1] + x; i += i & -i; } } T sum(int i) { if(i < 0) return identity; if(i >= n) i = n - 1; i++; T s = identity; while(i > 0) { s = s + data[i - 1]; i -= i & -i; } return s; } T get(int i) { return sum(i) - sum(i - 1); } T range(int a, int b) { return sum(b) - sum(a - 1); } size_type lower_bound(T w) { size_type i = 0; for(size_type k = m; k > 0; k >>= 1) { if(i + k <= n && data[i + k - 1] < w) w -= data[(i += k) - 1]; } return i; } }; /// }}}--- /// template < class T = long long > using BIT = BinaryIndexedTree< T >; int n, q; int a[112345]; ll ans[112345]; int main() { std::ios::sync_with_stdio(false), std::cin.tie(0); cin >> n >> q; using P = pair; priority_queue, greater

> pq; BIT<> bit(n); for(int i = 0; i < n; i++) { cin >> a[i]; } vector> v; for(int i = 0; i < q; i++) { int t, l, r; cin >> t >> l >> r; l--; v.emplace_back(l, r, i); } sort(begin(v), end(v)); for(int i = n - 1; i >= 0; i--) { while(pq.size() and pq.top().first < a[i]) { bit.add(pq.top().second, -1); pq.pop(); } bit.add(i, 1); pq.emplace(a[i], i); while(v.size() and get<0>(v.back()) == i) { int l, r, id; tie(l, r, id) = v.back(); v.pop_back(); ans[id] = bit.range(l, r - 1); } } for(int i = 0; i < q; i++) cout << ans[i] << "\n"; return 0; }