結果
| 問題 |
No.2509 Beam Shateki
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2023-10-20 22:23:22 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 4,586 bytes |
| コンパイル時間 | 3,124 ms |
| コンパイル使用メモリ | 268,756 KB |
| 実行使用メモリ | 5,376 KB |
| 最終ジャッジ日時 | 2024-09-20 19:57:47 |
| 合計ジャッジ時間 | 52,582 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 58 WA * 3 |
ソースコード
# include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ull = unsigned long long;
const double pi = acos(-1);
template<class T>constexpr T inf() { return ::std::numeric_limits<T>::max(); }
template<class T>constexpr T hinf() { return inf<T>() / 2; }
template <typename T_char>T_char TL(T_char cX) { return tolower(cX); }
template <typename T_char>T_char TU(T_char cX) { return toupper(cX); }
template<class T> bool chmin(T& a,T b) { if(a > b){a = b; return true;} return false; }
template<class T> bool chmax(T& a,T b) { if(a < b){a = b; return true;} return false; }
template<class T> bool is_sqare(T a) { if(floor(sqrt(a)) * floor(sqrt(a)) == a){ return true; }return false; }
int popcnt(unsigned long long n) { int cnt = 0; for (int i = 0; i < 64; i++)if ((n >> i) & 1)cnt++; return cnt; }
int d_sum(ll n) { int ret = 0; while (n > 0) { ret += n % 10; n /= 10; }return ret; }
int d_cnt(ll n) { int ret = 0; while (n > 0) { ret++; n /= 10; }return ret; }
ll gcd(ll a, ll b) { if (b == 0)return a; return gcd(b, a%b); };
ll lcm(ll a, ll b) { ll g = gcd(a, b); return a / g*b; };
template<class T> using dijk = priority_queue<T, vector<T>, greater<T>>;
# define all(qpqpq) (qpqpq).begin(),(qpqpq).end()
# define UNIQUE(wpwpw) sort(all((wpwpw)));(wpwpw).erase(unique(all((wpwpw))),(wpwpw).end())
# define LOWER(epepe) transform(all((epepe)),(epepe).begin(),TL<char>)
# define UPPER(rprpr) transform(all((rprpr)),(rprpr).begin(),TU<char>)
# define rep(i,upupu) for(ll i = 0, i##_len = (upupu);(i) < (i##_len);(i)++)
# define reps(i,opopo) for(ll i = 1, i##_len = (opopo);(i) <= (i##_len);(i)++)
# define len(x) ((int)(x).size())
# define bit(n) (1LL << (n))
# define pb push_back
#ifdef LOCAL
# include "_debug_print.hpp"
# define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)
#else
# define debug(...) (static_cast<void>(0))
#endif
struct INIT{
INIT(){
std::ios::sync_with_stdio(false);
std::cin.tie(0);
cout << fixed << setprecision(20);
}
}INIT;
void solve(){
int h, w;
cin >> h >> w;
vector<vector<int>> a(h, vector<int>(w));
rep(i, h)rep(j, w)cin >> a[i][j];
ll ans = 0;
const int dy[8] = {-1, -1, 0, 1, 1, 1, 0, -1};
const int dx[8] = {0, 1, 1, 1, 0, -1, -1, -1};
auto within = [&](int y, int x) -> bool {
return 0 <= y && y < h && 0 <= x && x < w;
};
map<tuple<int, int, int>, ll> mp;
vector<vector<vector<ll>>> v(h, vector<vector<ll>>(w, vector<ll>(8, 0)));
rep(i, h)rep(j, w){
rep(dir1, 8){
vector<vector<bool>> is_broke(h, vector<bool>(w, false));
{
int y = i, x = j;
while(within(y, x)){
is_broke[y][x] = true;
y += dy[dir1];
x += dx[dir1];
}
}
ll cur = 0;
rep(y, h)rep(x, w)if(is_broke[y][x])cur += a[y][x];
v[i][j][dir1] = cur;
}
}
rep(i, h)rep(j, w){
rep(dir1, 8)rep(dir2, 8){
ll cur = -a[i][j];
if(dir1 == dir2)continue;
if((dir1 - dir2 + 8) % 8 == 4)continue;
cur += v[i][j][dir1];
cur += v[i][j][(dir1 + 4) % 8];
cur -= a[i][j];
cur += v[i][j][dir2];
cur += v[i][j][(dir2 + 4) % 8];
cur -= a[i][j];
chmax(ans, cur);
}
}
debug(ans);
rep(i, h)rep(i2, h){
if(i == i2)continue;
chmax(ans, v[i][0][2] + v[i2][0][2]);
}
debug(ans);
rep(j, w)rep(j2, w){
if(j == j2)continue;
chmax(ans, v[0][j][4] + v[0][j2][4]);
}
debug(ans);
rep(x, h + w - 1)rep(x2, h + w - 1){
if(x == x2)continue;
ll cur = 0;
if(x < h){
cur += v[x][0][1];
}else{
cur += v[h - 1][x - h + 1][1];
}
if(x2 < h){
cur += v[x2][0][1];
}else{
cur += v[h - 1][x2 - h + 1][1];
}
chmax(ans, cur);
}
debug(ans);
rep(x, h + w - 1)rep(x2, h + w - 1){
if(x == x2)continue;
ll cur = 0;
if(x < w){
cur += v[0][x][3];
}else{
cur += v[x - w + 1][0][3];
}
if(x2 < w){
cur += v[0][x2][3];
}else{
cur += v[x2 - w + 1][0][3];
}
chmax(ans, cur);
}
debug(ans);
cout << ans << endl;
}
int main(){
int t = 1;
//cin >> t;
while(t--)solve();
}