func_code_string: #include <bits/stdc++.h>   using namespace std;   int n, q;   int a[1000007];   int st[1000007];   int en[1000007];   vector<pair<int, int> > v_st[1000007];   long long ans[1000007];   class Tree {    public:     pair<long long, int> tr[6 * 1000007];     void init(int where, int IL, int IR) {       tr[where] = {0, 0};       if (IL == IR) {         return;       }       int mid = (IL + IR) / 2;       init(2 * where, IL, mid);       init(2 * where + 1, mid + 1, IR);     }     void update(int where, int IL, int IR, int CURL, int CURR,                 pair<long long, int> add) {       if (CURR < CURL) {         return;       }       if (IR < CURL || CURR < IL) {         return;       }       if (CURL <= IL && IR <= CURR) {         tr[where].first += add.first, tr[where].second += add.second;         return;       }       int mid = (IL + IR) / 2;       update(2 * where, IL, mid, CURL, CURR, add);       update(2 * where + 1, mid + 1, IR, CURL, CURR, add);     }     pair<long long, int> query(int where, int IL, int IR, int pos) {       if (IR < pos || pos < IL) {         return {0, 0};       }       if (IL == IR) {         return tr[where];       }       int mid = (IL + IR) / 2;       pair<long long, int> ret;       if (pos <= mid) {         ret = query(2 * where, IL, mid, pos);       } else {         ret = query(2 * where + 1, mid + 1, IR, pos);       }       ret = {ret.first + tr[where].first, ret.second + tr[where].second};       return ret;     }   };   Tree w;   void input() {     scanf( %d%d , &n, &q);     for (int i = 1; i <= n; ++i) {       scanf( %d , &a[i]);     }     for (int i = 1; i <= q; ++i) {       scanf( %d , &st[i]);     }     for (int i = 1; i <= q; ++i) {       scanf( %d , &en[i]);       v_st[en[i]].push_back({st[i], i});     }   }   void calc() {     stack<int> st;     a[0] = n + 1;     st.push(0);     w.init(1, 1, n);     for (int i = 1; i <= n; ++i) {       while (a[st.top()] < a[i]) {         st.pop();       }       w.update(1, 1, n, 1, st.top(), {i - st.top() - 1, 0});       w.update(1, 1, n, st.top() + 1, i, {i, 1});       st.push(i);       int sz = v_st[i].size();       for (int j = 0; j < sz; ++j) {         pair<long long, int> ret = w.query(1, 1, n, v_st[i][j].first);         ans[v_st[i][j].second] += ret.first - 1LL * ret.second * v_st[i][j].first;       }     }   }   void solve() {     calc();     for (int i = 1; i <= (n >> 1); ++i) {       swap(a[i], a[n - i + 1]);     }     for (int i = 1; i <= n; ++i) {       v_st[i].clear();     }     for (int i = 1; i <= q; ++i) {       st[i] = (n - st[i] + 1);       en[i] = (n - en[i] + 1);       swap(st[i], en[i]);       v_st[en[i]].push_back({st[i], i});     }     calc();     for (int i = 1; i <= q; ++i) {       printf( %I64d  , ans[i] + (en[i] - st[i] + 1));     }     printf(  n );   }   int main() {     ios_base ::sync_with_stdio(false);     cin.tie(NULL);     input();     solve();     return 0;   }   