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- #include <iostream>
- #include <vector>
- #include <string>
- #include <iomanip>
- #include <queue>
- #include <cmath>
- #include <algorithm>
- #include <unordered_map>
- #include <tuple>
- #include <iomanip>
- #include <stdio.h>
- #include <map>
- #include <bitset>
- #include <set>
- #include <stack>
- #include <queue>
- #include <unordered_set>
- #include <cassert>
- #include <stdlib.h>
- #include <time.h>
- #include <random>
- //#pragma GCC optimize("Ofast,no-stack-protector")
- //#pragma GCC target("sse,sse2,sse3,sse3,sse4")
- //#pragma GCC optimize("unroll-loops")
- //#pragma GCC optimize("fast-math")
- //#pragma GCC target("avx2")
- //#pragma GCC optimize("section-anchors")
- //#pragma GCC optimize("profile-values,profile-reorder-functions,tracer")
- //#pragma GCC optimize("vpt")
- //#pragma GCC optimize("rename-registers")
- //#pragma GCC optimize("move-loop-invariants")
- //#pragma GCC optimize("unswitch-loops")
- //#pragma GCC optimize("function-sections")
- //#pragma GCC optimize("data-sections")
- //#define int long long
- #define ll long long
- #define ull unsigned long long
- #define all(a) (a).begin(), (a).end()
- #define pii pair<int, int>
- #define pb push_back
- #define ld long double
- using namespace std;
- //const int INF = 1e17;
- //const int mod = 2600000069;
- //const int p = 179;
- const int MAXN = 1e5 + 1;
- int sq;
- int n, m;
- int a[MAXN], cnt[MAXN], lst[MAXN];
- void update(int v, int k) {
- v--;
- a[v] = k;
- while (v % sq != 0) {
- if (a[v] + v < (v + 1) * sq) {
- cnt[v] = cnt[v + a[v]] + 1;
- lst[v] = lst[v + a[v]];
- if (lst[v + a[v]] == v + a[v]) cnt[v]--;
- } else {
- cnt[v] = 1;
- lst[v] = v;
- }
- v--;
- }
- if (a[v] + v < (v + 1) * sq) {
- cnt[v] = cnt[v + a[v]] + 1;
- lst[v] = lst[v + a[v]];
- } else {
- cnt[v] = 1;
- lst[v] = v;
- }
- }
- void ask(int v) {
- v--;
- int ans = 0;
- while (v < n) {
- ans += cnt[v];
- if (v == lst[v] && v + a[v] < n) v += a[v];
- else if (v != lst[v]) v = lst[v];
- else break;
- }
- cout << v + 1 << " " << ans << "\n";
- }
- signed main() {
- ios_base::sync_with_stdio(0);
- cin.tie(0);
- cout.tie(0);
- cin >> n >> m;
- sq = sqrt(n) + 1;
- for (int i = 0; i < n; i++) {
- cin >> a[i];
- lst[i] = i;
- }
- for (int i = n - 1; i >= 0; i--) {
- if (a[i] + i < min((i/sq + 1) * sq, n)) {
- cnt[i] = cnt[i + a[i]] + 1;
- lst[i] = lst[i + a[i]];
- if (lst[i + a[i]] == i + a[i]) cnt[i]--;
- } else {
- cnt[i] = 1;
- lst[i] = i;
- }
- }
- // for (auto k : lst) cout << k << " ";
- // cout << "\n";
- // for (auto k : cnt) cout << k << " ";
- // cout << "\n";
- int t, ind, val;
- for (int i = 0; i < m; i++) {
- cin >> t;
- if (t == 0) {
- cin >> ind >> val;
- update(ind, val);
- } else {
- cin >> ind;
- ask(ind);
- }
- }
- }
- /*
- */
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