func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 2e5 + 5;   const int inf = 1e9 + 7;   int tem[N], va[N], ans;   int num[N << 2], mx[N << 2], mi[N << 2];   void build(int t, int l, int r) {     mx[t] = 0, mi[t] = inf;     if (l == r) return;     int mid = (l + r) >> 1;     build(t << 1, l, mid);     build(t << 1 | 1, mid + 1, r);   }   void update(int t, int l, int r, int pos, int d) {     if (l == r) {       num[t] = d;       if (num[t])         mx[t] = mi[t] = tem[l];       else         mx[t] = 0, mi[t] = inf;       return;     }     int mid = (l + r) >> 1;     if (pos <= mid)       update(t << 1, l, mid, pos, d);     else       update(t << 1 | 1, mid + 1, r, pos, d);     num[t] = num[t << 1] + num[t << 1 | 1];     mi[t] = min(mi[t << 1], mi[t << 1 | 1]);     mx[t] = max(mx[t << 1], mx[t << 1 | 1]);   }   void query_mi(int t, int l, int r, int ei, int ej) {     if (ei <= l && r <= ej) {       ans = min(ans, mi[t]);       return;     }     int mid = (l + r) >> 1;     if (ei <= mid) query_mi(t << 1, l, mid, ei, ej);     if (ej > mid) query_mi(t << 1 | 1, mid + 1, r, ei, ej);   }   void query_mx(int t, int l, int r, int ei, int ej) {     if (ei <= l && r <= ej) {       ans = max(ans, mx[t]);       return;     }     int mid = (l + r) >> 1;     if (ei <= mid) query_mx(t << 1, l, mid, ei, ej);     if (ej > mid) query_mx(t << 1 | 1, mid + 1, r, ei, ej);   }   int st[N << 2];   void modify(int t, int l, int r, int pos, int d) {     if (l == r) {       st[t] = d;       return;     }     int mid = (l + r) >> 1;     if (pos <= mid)       modify(t << 1, l, mid, pos, d);     else       modify(t << 1 | 1, mid + 1, r, pos, d);     st[t] = max(st[t << 1], st[t << 1 | 1]);   }   bool tp[N];   int vb[N];   int main() {     ios::sync_with_stdio(false);     int n, m;     cin >> n >> m;     int cnt = 0;     for (int i = 1; i <= n; i++) {       cin >> va[i];       tem[++cnt] = va[i];     }     for (int i = 1; i <= m; i++) {       cin >> tp[i] >> vb[i];       if (tp[i]) tem[++cnt] = vb[i];     }     sort(tem + 1, tem + cnt + 1);     sort(va + 1, va + n + 1);     int ni = unique(tem + 1, tem + cnt + 1) - tem - 1;     build(1, 1, ni);     for (int i = 1; i <= n; i++)       va[i] = lower_bound(tem + 1, tem + ni + 1, va[i]) - tem;     for (int i = 1; i <= n; i++) {       update(1, 1, ni, va[i], 1);       if (i != n) modify(1, 1, ni, va[i + 1], tem[va[i + 1]] - tem[va[i]]);     }     cout << mx[1] - mi[1] - st[1] << endl;     for (int i = 1; i <= m; i++) {       int pos = lower_bound(tem + 1, tem + ni + 1, vb[i]) - tem;       if (tp[i]) {         ans = 0;         query_mx(1, 1, ni, 1, pos);         int a = ans;         ans = inf;         query_mi(1, 1, ni, pos, ni);         int b = ans;         update(1, 1, ni, pos, 1);         if (a) modify(1, 1, ni, pos, vb[i] - a);         if (b != inf) {           int c = lower_bound(tem + 1, tem + ni + 1, b) - tem;           modify(1, 1, ni, c, b - vb[i]);         }       } else {         update(1, 1, ni, pos, 0);         modify(1, 1, ni, pos, 0);         ans = 0;         query_mx(1, 1, ni, 1, pos);         int a = ans;         ans = inf;         query_mi(1, 1, ni, pos, ni);         int b = ans;         if (b != inf) {           int c = lower_bound(tem + 1, tem + ni + 1, b) - tem;           if (a)             modify(1, 1, ni, c, b - a);           else             modify(1, 1, ni, c, 0);         }       }       cout << max(mx[1] - mi[1] - st[1], 0) << endl;     }   }   