Submission #521712

#	Time	Username	Problem	Language	Result	Execution time	Memory
521712		blue	Two Antennas (JOI19_antennas)	C++17	2 / 100	3067 ms	2380 KiB

antennas

#include <iostream>
using namespace std;

int main()
{
	int N;
	cin >> N;

	int H[1+N], A[1+N], B[1+N];
	for(int i = 1; i <= N; i++) cin >> H[i] >> A[i] >> B[i];


	int Q;
	cin >> Q;

	for(int j = 1; j <= Q; j++)
	{
		int L, R;
		cin >> L >> R;

		int ans = -1;

		for(int i = L; i <= R; i++)
			for(int j = i+1; j <= R; j++)
				if(i + A[i] <= j && j <= i + B[i])
					if(j - B[j] <= i && i <= j - A[j])
						ans = max(ans, abs(H[i] - H[j]));

		cout << ans << '\n';
	}
}

• Subtask 1: 2 / 2
• Subtask 2: 0 / 11
• Subtask 3: 0 / 22
• Subtask 4: 0 / 65