제출 #756883

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
756883		ParsaS	Worst Reporter 3 (JOI18_worst_reporter3)	C++17	100 / 100	321 ms	25332 KiB

worst_reporter3

// In the name of God
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define mp make_pair
typedef long long ll;
#define int ll
const int N = 5e5 + 5;
int n, q, d[N];

void solve() {
    cin >> n >> q;
    vector<pair<int, pair<int, int> > > vec;
    vec.pb({1, {0, 0}});
    d[0] = 1;
    bool tmp = false;
    for (int i = 1; i <= n; i++) {
        cin >> d[i];
        if (tmp)
            continue;
        if (d[i] <= vec.back().fi) {
            vec.back().se.fi--;
        }
        int c = (d[i] + vec.back().fi - 1) / vec.back().fi;
        if (d[i] > vec.back().fi && c <= 3e9 / vec.back().fi) {
            vec.pb({c * vec.back().fi, {-i, -i}});
        }
        else if (d[i] > vec.back().fi)
            tmp = true;
    }
    while (q--) {
        ll t, l, r; cin >> t >> l >> r;

        int ans = 0;
        for (auto [a, b] : vec) {
            t /= a;
            t *= a;
            ll lt = b.fi + t, rt = b.se + t;
            ans += max(0LL, min(rt, r) - max(lt, l) + 1);
        }
        cout << ans << '\n';
    }

}

int32_t main() {
    ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);

    solve();

    return 0;
}

• Subtask 1: 7 / 7
• Subtask 2: 12 / 12
• Subtask 3: 81 / 81