Submission #727188

#	Time	Username	Problem	Language	Result	Execution time	Memory
727188		SanguineChameleon	Hexagonal Territory (APIO21_hexagon)	C++17	9 / 100	1 ms	304 KiB

hexagon

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

const long long mod = 1e9 + 7;
const long long one_half = (mod + 1) / 2;
const long long one_third = (mod + 1) / 3;

int draw_territory(int N, int A, int B, vector<int> D, vector<int> L) {
	if (N == 3) {
		int len = L[0] + 1;
		long long A_sum = 1LL * len * (len + 1) % mod * one_half % mod;
		long long B_sum = 1LL * len * (len - 1) % mod * one_half % mod + (len - 1) * len % mod * (len * 2 - 1) % mod * one_half % mod * one_third % mod;
		return (A_sum * A + B_sum * B) % mod;
	}
	return 0;
}

• Subtask 1: 3 / 3
• Subtask 2: 6 / 6
• Subtask 3: 0 / 11
• Subtask 4: 0 / 12
• Subtask 5: 0 / 15
• Subtask 6: 0 / 19
• Subtask 7: 0 / 18
• Subtask 8: 0 / 16