Submission #1367797

#	Time	Username	Problem	Language	Result	Execution time	Memory
1367797		cleversquid	Hexagonal Territory (APIO21_hexagon)	C++20	9 / 100	1 ms	344 KiB

hexagon

#include "hexagon.h"
#include <iostream>
#include <vector>
using namespace std;

using ll = long long int;
ll MOD = 1e9+7;
ll INV2 = 500000004;
ll INV3 = 333333336;

ll mul(ll a, ll b){
    return ((a%MOD) * (b%MOD)) % MOD;
}

int draw_territory(int N, int A, int B, std::vector<int> D, std::vector<int> L) {
    //if n = 3 and b = 0
    ll side = L[0];
    ll a = side+1;
    ll b = side+2;

    side%=MOD;
    a%=MOD;
    b%=MOD;

    ll bs = mul(mul(mul(mul(side, a),b), INV3), B);
    ll as = mul(mul(mul(a,b), INV2), A);

    return (as + bs)%MOD;
}

/*
int main(){
    int N, A, B; cin >> N >> A >> B;
    vector<int> D;
    vector<int> L;
    for(int i =0 ; i<N; i++){
        int d;
        cin >> d;
        D.push_back(d);
    }
    for(int i =0 ; i<N; i++){
        int l;
        cin >> l;
        L.push_back(l);
    }

}*/

• 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