제출 #980565

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
980565		fcmalkcin	육각형 영역 (APIO21_hexagon)	C++17	0 / 100	1 ms	348 KiB

hexagon

#include <bits/stdc++.h>
using namespace std;
#define fastio ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define nl "\n"
#define ll long long

const int maxn = 2e5+5;
const ll mod = 1e9+7;


ll mul(ll a, ll n) {
  if (n == 0) return 1;
  ll t= mul(a, n / 2);
  if (n%2==0) return (t*t)%mod;
  else return ((t*t)%mod*a)%mod;
}

int draw_territory(int N, int A, int B, vector<int> D, vector<int> L){
    long long a;
    if(N==3){
        long long length = L[0];
        a = ((length * (length-1))%mod*mul(2, mod - 2)) %mod;
        a = (a * A) %mod;
    }
    else{
        int totalsq = 4000*4000;
        int dx[6] = {0, 1, 1, 0, -1, -1};
        int dy[6] = {2, 1 ,-1, -2, -1, 1};
    }
    int ans = a%mod;
    return ans;
}

컴파일 시 표준 에러 (stderr) 메시지

hexagon.cpp: In function 'int draw_territory(int, int, int, std::vector<int>, std::vector<int>)':
hexagon.cpp:26:13: warning: unused variable 'totalsq' [-Wunused-variable]
   26 |         int totalsq = 4000*4000;
      |             ^~~~~~~
hexagon.cpp:27:13: warning: unused variable 'dx' [-Wunused-variable]
   27 |         int dx[6] = {0, 1, 1, 0, -1, -1};
      |             ^~
hexagon.cpp:28:13: warning: unused variable 'dy' [-Wunused-variable]
   28 |         int dy[6] = {2, 1 ,-1, -2, -1, 1};
      |             ^~
hexagon.cpp:30:9: warning: 'a' may be used uninitialized in this function [-Wmaybe-uninitialized]
   30 |     int ans = a%mod;
      |         ^~~

• Subtask 1: 0 / 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