Submission #1035031

#	Time	Username	Problem	Language	Result	Execution time	Memory
1035031		yellowtoad	Worst Reporter 3 (JOI18_worst_reporter3)	C++17	19 / 100	1041 ms	22772 KiB

worst_reporter3

#include <iostream>
using namespace std;

int n, test, a[500010], b[500010], ll, rr, tim, l, r, mid, tmp;

int main() {
	cin >> n >> test;
	for (int i = 1; i <= n; i++) cin >> a[i];
	b[0] = 1;
	for (int i = 1; i <= n; i++) b[i] = (a[i]+b[i-1]-1)/b[i-1]*b[i-1];
	while (test--) {
		cin >> tim >> ll >> rr;
		l = 0; r = n;
		while (l <= r) {
			mid = (l+r)/2;
			if ((tim/b[mid])*b[mid]-mid >= ll) l = mid+1;
			else r = mid-1;
		}
		tmp = r;
		l = 0; r = n;
		while (l <= r) {
			mid = (l+r)/2;
			if ((tim/b[mid])*b[mid]-mid <= rr) r = mid-1;
			else l = mid+1;
		}
		cout << tmp-r << endl;
	}
}

• Subtask 1: 7 / 7
• Subtask 2: 12 / 12
• Subtask 3: 0 / 81