Submission #1202261

#	Time	Username	Problem	Language	Result	Execution time	Memory
1202261		jer033	Hexagonal Territory (APIO21_hexagon)	C++20	9 / 100	1 ms	396 KiB

hexagon

#include "hexagon.h"
#include <bits/stdc++.h>
#include <vector>
using namespace std;
using ll = long long;
const ll MOD = 1'000'000'007;

int report(ll ans)
{
    ll x = ans%MOD;
    int y = x;
    return y;
}

int draw_territory(int N, int A, int B, std::vector<int> D, std::vector<int> L) {
    //suppose N=3;
    ll AA = A;
    ll BB = B;
    ll K = L[0] + 1;
    ll suma = (K*K+K)/2ll;
    ll sumb = (suma%(3ll*MOD))*(2*K+1);
    suma = suma%MOD;
    sumb = (sumb/3ll)%MOD;
    sumb = (sumb-suma)%MOD;
    sumb = (sumb+MOD)%MOD;
    ll ans = ((suma*AA)%MOD)+((sumb*BB)%MOD);
    return report(ans);
}

• 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