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Submission #49736

# Submission time Handle Problem Language Result Execution time Memory
49736 2018-06-02T11:10:11 Z longcqt Worst Reporter 3 (JOI18_worst_reporter3) C++11
100 / 100
 1049 ms 262144 KB 
#include <bits/stdc++.h>

using namespace std;

const int N = 5e5 + 1;

int n, q;
long long d[N], t[N], l[N];

int f(int x, int ti)
{
	int le = 0, ri = n;
	int res = n + 1;
	while (le <= ri)
	{
		int mid = (le + ri)/2;
		int k = floor((double)ti/(double)t[mid]);
		long long y = -mid + k*l[mid];
		if (y <= x)
		{
			res = mid;
			ri = mid - 1;
		}
		else le = mid + 1;
	}
	return res;
}

int main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin >> n >> q;
	for (int i = 1; i <= n; ++i) cin >> d[i];
	t[0] = 1;
	l[0] = 1;
	t[1] = d[1];
	l[1] = d[1];
	for (int  i = 2; i <= n; ++i)
		if (d[i] < d[i - 1])
			t[i] = t[i - 1], l[i] = l[i - 1];
		else
		{
			int k = trunc(ceil((double)d[i]/(double)l[i - 1]));
		//	cout << ceil(5/2) << endl;
			//cout << k <<' ' << t[i - 1] <<' ' << l[i - 1] << endl;
			t[i] = k*t[i - 1];
			l[i] = k*l[i - 1];
		}
	//for (int i = 1; i <= n; ++i) cout << t[i] <<' ' << l[i] << endl;
	int ti, le, ri;
	for (int i = 1; i <= q; ++i)
	{
		cin >> ti >> le >> ri;
		//cout << f(le - 1, ti) <<' ' << f(ri, ti) << '\n';
		cout << f(le - 1, ti) - f(ri, ti) << '\n';
	}
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 974 ms 15232 KB Output is correct
2 Correct 1049 ms 30628 KB Output is correct
3 Correct 953 ms 46116 KB Output is correct
4 Correct 790 ms 61712 KB Output is correct
5 Correct 806 ms 77052 KB Output is correct
6 Correct 812 ms 92440 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 92440 KB Output is correct
2 Correct 3 ms 92440 KB Output is correct
3 Correct 2 ms 92440 KB Output is correct
4 Correct 3 ms 92440 KB Output is correct
5 Correct 3 ms 92440 KB Output is correct
6 Correct 4 ms 92440 KB Output is correct

Subtask #3
81.0 / 81.0

# Verdict Execution time Memory Grader output
1 Correct 974 ms 15232 KB Output is correct
2 Correct 1049 ms 30628 KB Output is correct
3 Correct 953 ms 46116 KB Output is correct
4 Correct 790 ms 61712 KB Output is correct
5 Correct 806 ms 77052 KB Output is correct
6 Correct 812 ms 92440 KB Output is correct
7 Correct 3 ms 92440 KB Output is correct
8 Correct 3 ms 92440 KB Output is correct
9 Correct 2 ms 92440 KB Output is correct
10 Correct 3 ms 92440 KB Output is correct
11 Correct 3 ms 92440 KB Output is correct
12 Correct 4 ms 92440 KB Output is correct
13 Correct 466 ms 106936 KB Output is correct
14 Correct 587 ms 123432 KB Output is correct
15 Correct 457 ms 138616 KB Output is correct
16 Correct 444 ms 154488 KB Output is correct
17 Correct 629 ms 174540 KB Output is correct
18 Correct 631 ms 193228 KB Output is correct
19 Correct 594 ms 211880 KB Output is correct
20 Correct 753 ms 230644 KB Output is correct
21 Correct 628 ms 249108 KB Output is correct
22 Correct 666 ms 262144 KB Output is correct
23 Correct 637 ms 262144 KB Output is correct
24 Correct 598 ms 262144 KB Output is correct
25 Correct 807 ms 262144 KB Output is correct
26 Correct 757 ms 262144 KB Output is correct
27 Correct 681 ms 262144 KB Output is correct
28 Correct 895 ms 262144 KB Output is correct
29 Correct 624 ms 262144 KB Output is correct
30 Correct 678 ms 262144 KB Output is correct
31 Correct 652 ms 262144 KB Output is correct
32 Correct 682 ms 262144 KB Output is correct
33 Correct 3 ms 262144 KB Output is correct