Submission #459667

#	Time	Username	Problem	Language	Result	Execution time	Memory
459667		JovanB	Worst Reporter 3 (JOI18_worst_reporter3)	C++17	100 / 100	416 ms	21444 KiB

worst_reporter3

#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
typedef long double ld;

const ll INF = 100000000000LL;
 
ll intersect(ll l, ll r, ll tl, ll tr){
    return max(0LL, min(r, tr) - max(l, tl) + 1);
}
 
int main(){
    ios_base::sync_with_stdio(false), cin.tie(0);
    cout.precision(10);
    cout << fixed;
 
    int n, m;
    cin >> n >> m;
    vector <pair <pair <int, int>, ll>> intervals;
    intervals.push_back({{0, 0}, 1});
    ll pos = 1;
    for(int i=1; i<=n; i++){
        int x;
        cin >> x;
        ll g = pos*((x+pos-1)/pos);
        g = min(g, INF);
        if(g == intervals.back().second){
            pair <pair <int, int>, ll> v = intervals.back();
            intervals.pop_back();
            v.first.first = -i;
            intervals.push_back(v);
        }
        else{
            pair <pair <int, int>, ll> v;
            v.first.first = v.first.second = -i;
            v.second = g;
            intervals.push_back(v);
        }
        pos = g;
    }
    while(m--){
        ll t, tl, tr;
        cin >> t >> tl >> tr;
        ll res = 0;
        for(auto c : intervals){
            ll l = c.first.first;
            ll r = c.first.second;
            ll g = c.second;
            ll dist = g*(t/g);
            l += dist;
            r += dist;
            res += intersect(l, r, tl, tr);
        }
        cout << res << "\n";
    }
    return 0;
}

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