Submission #796672

#	Time	Username	Problem	Language	Result	Execution time	Memory
796672		Kahou	Worst Reporter 3 (JOI18_worst_reporter3)	C++14	100 / 100	328 ms	25352 KiB

worst_reporter3

#include<bits/stdc++.h>
using namespace std;
#define F first
#define S second
#define endl '\n'
#define mk make_pair
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int N = 5e5 +50, LG = 36;
int n, q, m;
ll d[N];
pll P[LG];

int get(int x, ll t) {
        int out = 0;
        for (int i = 1; i <= m; i++) {
                ll v = t-t%P[i].F;
                if (P[i].S + v < x) break;
                out += min(P[i].S+v-x+1, P[i].S-P[i+1].S);
        }
        return out;
}
void solve() {
        cin >> n >> q;
        d[0] = 1;
        P[++m] = {1, 0};
        for (int i = 1; i <= n; i++) {
                cin >> d[i];
                d[i] = ((d[i]+d[i-1]-1)/d[i-1])*d[i-1];
                if (d[i] != d[i-1]) {
                        P[++m] = {d[i], -i};
                }
        }
        P[m+1].S = -(n+1);
        for (int i = 1; i <= q; i++) {
                ll t, l, r;
                cin >> t >> l >> r;
                cout << get(l, t) - get(r+1, t) << endl;
        }
}

int 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