제출 #1197996

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1197996		adiyer	육각형 영역 (APIO21_hexagon)	C++20	3 / 100	1 ms	328 KiB

hexagon

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const int mod = 1e9 + 7;

ll bpm(ll a, ll b, ll m){
    ll c = 1;
    while(b){
        if(b & 1) c *= a, c %= m;
        a *= a, a %= m, b >>= 1;
    }
    return c;
}

int draw_territory(int N, int A, int B, vector < int > D, vector < int > L) {
    ll cnt = 0, d = 0;
    for(int i = 0; i < N; i++) cnt = d = L[0];
    cnt = (cnt + 1) * (cnt + 2) / 2, cnt %= mod, cnt *= A, cnt %= mod;
    cnt += ((((((d + 1) * (d + 2)) % mod * (d + 3)) % mod) * bpm(6, mod - 2, mod)) % mod * B) % mod, cnt %= mod;
    int ans = cnt;
    return ans;
}

• Subtask 1: 3 / 3
• Subtask 2: 0 / 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