제출 #743370

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
743370		onebit1024	육각형 영역 (APIO21_hexagon)	C++17	3 / 100	1 ms	292 KiB

hexagon

#include "hexagon.h"
#define ll long long
#include <vector>
ll mod = 1e9+7;
ll ma(ll a, ll b){
  return (a+b)%mod;
}
ll mm(ll a, ll b){
  return (a*b)%mod;
}
int draw_territory(int N, int A, int B,
                   std::vector<int> D, std::vector<int> L) {
  ll k = L[0]-2;
  if(L[0]<=2)return mm(A,L[0]*3)%mod;
  ll fr = mm(L[0],3),sr=0;
  if(k%2)sr = mm((k+1)/2,k);
  else sr = mm(k/2,k+1);
  return mm(A,ma(sr,fr))%mod;
}

• Subtask 1: 3 / 3
• Subtask 2: 0 / 6
• Subtask 3: 0 / 11
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• Subtask 8: 0 / 16