Submission #1039779

#	Time	Username	Problem	Language	Result	Execution time	Memory
1039779		Andrey	Worst Reporter 3 (JOI18_worst_reporter3)	C++14	100 / 100	339 ms	25428 KiB

worst_reporter3

#include<bits/stdc++.h>
using namespace std;

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    long long n,q,a,b,t;
    cin >> n >> q;
    vector<long long> haha(n+1,1);
    for(long long i = 1; i <= n; i++) {
        cin >> haha[i];
        haha[i] = haha[i-1]*((haha[i]+haha[i-1]-1)/haha[i-1]);
        haha[i] = min(haha[i],(long long)INT_MAX);
    }
    for(long long i = 0; i < q; i++) {
        cin >> t >> a >> b;
        long long c = a,ans = 0;
        if(t >= c) {
            long long l = 0,r = haha.size()-1;
            while(l < r) {
                long long mid = (l+r+1)/2;
                if(-mid+haha[mid]*(t/haha[mid]) >= c) {
                    l = mid;
                }
                else {
                    r = mid-1;
                }
            }
            ans+=l+1;
        }
        c = b+1;
        if(t >= c) {
            long long l = 0,r = haha.size()-1;
            while(l < r) {
                long long mid = (l+r+1)/2;
                if(-mid+haha[mid]*(t/haha[mid]) >= c) {
                    l = mid;
                }
                else {
                    r = mid-1;
                }
            }
            ans-=l+1;
        }
        cout << ans << "\n";
    }
    return 0;
}

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