#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; using namespace atcoder; typedef long long ll; #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define repr(i, n) for (int i = (int)(n) - 1; i >= 0; i--) #define repk(i, k, n) for (int i = k; i < (int)(n); i++) #define all(v) v.begin(), v.end() #define mod1 1000000007 #define mod2 998244353 #define mod3 100000007 #define vi vector #define vs vector #define vc vector #define vl vector #define vb vector #define vvi vector> #define vvc vector> #define vvl vector> #define vvb vector> #define vvvi vector>> #define vvvl vector>> #define pii pair #define pil pair #define pli pair #define pll pair #define vpii vector> #define vpll vector> #define vvpii vector>> #define vvpll vector>> template void debug(T e) { cerr << e << endl; } template void debug(vector &v) { rep(i, v.size()) { cerr << v[i] << " "; } cerr << endl; } template void debug(vector> &v) { rep(i, v.size()) { rep(j, v[i].size()) { cerr << v[i][j] << " "; } cerr << endl; } } template void debug(vector> &v) { rep(i, v.size()) { cerr << v[i].first << " " << v[i].second << endl; } } template void debug(set &st) { for (auto itr = st.begin(); itr != st.end(); itr++) { cerr << *itr << " "; } cerr << endl; } template void debug(multiset &ms) { for (auto itr = ms.begin(); itr != ms.end(); itr++) { cerr << *itr << " "; } cerr << endl; } template void debug(map &mp) { for (auto itr = mp.begin(); itr != mp.end(); itr++) { cerr << itr->first << " " << itr->second << endl; } } void debug_out() { cerr << endl; } template void debug_out(Head H, Tail... T) { cerr << H << " "; debug_out(T...); } using mint = modint998244353; void debug_mint1(vector &vec) { for (int i = 0; i < vec.size(); i++) { cerr << vec[i].val() << " "; } cerr << endl; } void debug_mint2(vector> &vec) { for (int i = 0; i < vec.size(); i++) { for (int j = 0; j < vec[i].size(); j++) { cerr << vec[i][j].val() << " "; } cerr << endl; } } ll op(ll a, ll b){ return a + b; } ll e(){ return 0LL; } int main(){ ll N, Q; cin >> N >> Q; vector A(N); for (ll i = 0; i < N; i++){ cin >> A[i]; } vector l(Q); vector r(Q); for (ll i = 0; i < Q; i++){ cin >> l[i] >> r[i]; l[i]--; r[i]--; } vector> qs(N, vector(0)); for (ll i = 0; i < Q; i++){ qs[l[i]].push_back(i); } segtree seg(N); vector ans(Q); stack st; st.push(make_pair(N + 1, N + 1)); for (ll i = N - 1; i >= 0; i--){ while (true){ pll ptp = st.top(); if (ptp.first > A[i]){ break; } st.pop(); seg.set(ptp.second, seg.get(ptp.second) - 1); } st.push(make_pair(A[i], i)); seg.set(i, seg.get(i) + 1); for (ll x: qs[i]){ ll ridx = r[x]; ans[x] = (ridx + 1 - i) - seg.prod(i, ridx + 1); } } for (ll i = 0; i < Q; i++){ cout << ans[i] << endl; } }