using System; using static System.Console; using System.Linq; using System.Collections.Generic; class Program { static int NN => int.Parse(ReadLine()); static int[] NList => ReadLine().Split().Select(int.Parse).ToArray(); static int[][] NArr(long n) => Enumerable.Repeat(0, (int)n).Select(_ => NList).ToArray(); public static void Main() { Solve(); } static void Solve() { var c = NList; var (n, q) = (c[0], c[1]); var a = NList; var query = NArr(q); var list = new List<(int id, int l, int r)>(q); for (var i = 0; i < q; ++i) list.Add((i, query[i][1] - 1, query[i][2])); list.Sort((l, r) => l.l.CompareTo(r.l)); var seg = new SegmentTree(a, new SegOp()); var ft = new FenwickTree(n); var pq = new PriorityQueue(); var lid = q - 1; var ans = new long[q]; for (var i = n - 1; i >= 0; --i) { var pos = seg.MaxRight(i, x => x <= a[i]); while (pq.Count > 0 && pq.Peek() < pos) { ft.Add(pq.Dequeue(), -1); } ft.Add(i, 1); pq.Enqueue(i, i); while (lid >= 0 && list[lid].l == i) { ans[list[lid].id] = ft.Sum(list[lid].r - 1) - (list[lid].l > 0 ? ft.Sum(list[lid].l - 1) : 0); --lid; } } WriteLine(string.Join("\n", ans)); } class FenwickTree { int size; long[] tree; public FenwickTree(int size) { this.size = size; tree = new long[size + 2]; } public void Add(int index, long value) { ++index; for (var x = index; x <= size; x += (x & -x)) tree[x] += value; } /// 先頭からindexまでの和(include index) public long Sum(int index) { if (index < 0) return 0; ++index; var sum = 0L; for (var x = index; x > 0; x -= (x & -x)) sum += tree[x]; return sum; } public long Get(int index) { if (index == 0) return Sum(0); return Sum(index) - Sum(index - 1); } /// Sum(x) >= value となる最小のxを求める // 各要素は非負であること public int LowerBound(long value) { if (value < 0) return -1; var x = 0; var b = 1; while (b * 2 <= size) b <<= 1; for (var k = b; k > 0; k >>= 1) { if (x + k <= size && tree[x + k] < value) { value -= tree[x + k]; x += k; } } return x; } public long[] Debug() { var ans = new long[size]; for (var i = 0; i < size; ++i) ans[i] = Get(i); return ans; } } struct SegOp : ISegmentTreeOperator { public int Identity => 0; public int Operate(int x, int y) => Math.Max(x, y); } interface ISegmentTreeOperator { T Identity { get; } T Operate(T x, T y); } class SegmentTree { int _n; int size; int log; T[] d; ISegmentTreeOperator op; void Update(int k) { d[k] = op.Operate(d[2 * k], d[2 * k + 1]); } public SegmentTree(int n, ISegmentTreeOperator op) { this.op = op; _n = n; size = 1; while (size < n) size <<= 1; log = CountRZero(size); d = new T[2 * size]; for (var i = 0; i < d.Length; ++i) d[i] = op.Identity; } public SegmentTree(T[] v, ISegmentTreeOperator op) { this.op = op; _n = v.Length; size = 1; while (size < v.Length) size <<= 1; log = CountRZero(size); d = new T[2 * size]; for (var i = 0; i < d.Length; ++i) d[i] = op.Identity; for (var i = 0; i < v.Length; ++i) d[size + i] = v[i]; for (var i = size - 1; i >= 1; --i) Update(i); } int CountRZero(int n) { var ans = 0; while (n % 2 == 0) { ++ans; n >>= 1; } return ans; } public T this[int p] { get { return d[p + size]; } set { p += size; d[p] = value; for (var i = 1; i <= log; ++i) Update(p >> i); } } public T Prod(int l, int r) { var sml = op.Identity; var smr = op.Identity; l += size; r += size; while (l < r) { if ((l & 1) != 0) sml = op.Operate(sml, d[l++]); if ((r & 1) != 0) smr = op.Operate(d[--r], smr); l >>= 1; r >>= 1; } return op.Operate(sml, smr); } T AllProd() => d[1]; int MinLeft(int r, Predicate f) { if (r == 0) return 0; r += size; T sm = op.Identity; do { r--; while (r > 1 && (r % 2) != 0) r >>= 1; if (!f(op.Operate(d[r], sm))) { while (r < size) { r = 2 * r + 1; if (f(op.Operate(d[r], sm))) { sm = op.Operate(d[r], sm); r--; } } return r + 1 - size; } sm = op.Operate(d[r], sm); } while ((r & -r) != r); return 0; } public int MaxRight(int l, Predicate f) { if (l == _n) return _n; l += size; T sm = op.Identity; do { while (l % 2 == 0) l >>= 1; if (!f(op.Operate(sm, d[l]))) { while (l < size) { l = 2 * l; if (f(op.Operate(sm, d[l]))) { sm = op.Operate(sm, d[l]); ++l; } } return l - size; } sm = op.Operate(sm, d[l]); ++l; } while ((l & -l) != l); return _n; } } }