結果

問題 No.2641 draw X
ユーザー kenken714kenken714
提出日時 2024-02-19 22:22:11
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 146 ms / 2,000 ms
コード長 3,356 bytes
コンパイル時間 2,395 ms
コンパイル使用メモリ 215,652 KB
実行使用メモリ 68,224 KB
最終ジャッジ日時 2024-09-29 02:15:55
合計ジャッジ時間 5,588 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge5
このコードへのチャレンジ
（要ログイン）

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 2 ms
6,816 KB
testcase_01 AC 2 ms
6,820 KB
testcase_02 AC 2 ms
6,816 KB
testcase_03 AC 2 ms
6,816 KB
testcase_04 AC 1 ms
6,816 KB
testcase_05 AC 2 ms
6,820 KB
testcase_06 AC 2 ms
6,816 KB
testcase_07 AC 2 ms
6,816 KB
testcase_08 AC 2 ms
6,816 KB
testcase_09 AC 1 ms
6,820 KB
testcase_10 AC 2 ms
6,816 KB
testcase_11 AC 2 ms
6,820 KB
testcase_12 AC 1 ms
6,816 KB
testcase_13 AC 2 ms
6,820 KB
testcase_14 AC 2 ms
6,820 KB
testcase_15 AC 142 ms
68,224 KB
testcase_16 AC 146 ms
68,096 KB
testcase_17 AC 2 ms
6,820 KB
testcase_18 AC 2 ms
6,820 KB
testcase_19 AC 2 ms
6,816 KB
testcase_20 AC 10 ms
7,808 KB
testcase_21 AC 19 ms
13,184 KB
testcase_22 AC 9 ms
7,424 KB
testcase_23 AC 17 ms
11,904 KB
testcase_24 AC 7 ms
6,912 KB
testcase_25 AC 6 ms
6,816 KB
testcase_26 AC 22 ms
13,696 KB
testcase_27 AC 5 ms
6,820 KB
testcase_28 AC 37 ms
25,344 KB
testcase_29 AC 98 ms
53,120 KB
testcase_30 AC 84 ms
45,056 KB
testcase_31 AC 56 ms
30,720 KB
testcase_32 AC 106 ms
53,120 KB
testcase_33 AC 93 ms
52,736 KB
testcase_34 AC 49 ms
31,588 KB
testcase_35 AC 48 ms
28,160 KB
testcase_36 AC 129 ms
61,312 KB
testcase_37 AC 132 ms
65,024 KB
testcase_38 AC 113 ms
57,472 KB
testcase_39 AC 143 ms
67,328 KB
testcase_40 AC 136 ms
64,000 KB
testcase_41 AC 123 ms
57,600 KB
testcase_42 AC 123 ms
60,800 KB
testcase_43 AC 125 ms
58,240 KB
権限があれば一括ダウンロードができます

ソースコード

diff # 

#include "bits/stdc++.h"
using namespace std;

#define REP(i, n) for(ll i = 0;i < n;i++)
#define REPR(i, n) for(ll i = n;i >= 0;i--)
#define FOR(i, m, n) for(ll i = m;i < n;i++)
#define FORR(i, m, n) for(ll i = m;i >= n;i--)
#define REPO(i, n) for(ll i = 1;i <= n;i++)
#define ll long long
#define INF (ll)1ll << 60
#define MINF (-1 * INF)
#define ALL(n) n.begin(),n.end()
#define MOD (ll)1000000007
#define P pair<ll, ll>

ll h, w;
vector<string> s;
vector<vector<ll>> v[4], r[4];
bool check(ll x, ll y){
    if(0 <= x and x < h and 0 <= y and y < w) return true;
    return false;
}
void solve(ll num, ll x0, ll y0, ll dx1, ll dy1, ll dx2, ll dy2, ll dx, ll dy){
    ll x = x0, y = y0;
    while(1){
        ll nx = x, ny = y, now = 0;
        while(1){
            if(s[nx][ny] == '#'){
                now++;
            }
            else now = 0;
            v[num][nx][ny] = now;
            if(!check(nx + dx, ny + dy))break;
            nx += dx;
            ny += dy;
        }
        if(!check(x + dx1, y + dy1))break;
        x += dx1;
        y += dy1;
    }
    x += dx2;
    y += dy2;
    if(!check(x + dx2, y + dy2))return;
    while(1){
        ll nx = x, ny = y, now = 0;
        while(1){
            if(s[nx][ny] == '#'){
                now++;
            }
            else now = 0;
            v[num][nx][ny] = now;
            if(!check(nx + dx, ny + dy))break;
            nx += dx;
            ny += dy;
        }
        if(!check(x + dx2, y + dy2))break;
        x += dx2;
        y += dy2;
    }
}

void solve2(ll num, ll x0, ll y0, ll dx1, ll dy1, ll dx2, ll dy2, ll dx, ll dy){
    ll x = x0, y = y0;
    while(1){
        ll nx = x, ny = y, now = 0;
        while(1){
            now = max(now - 1, r[num][nx][ny]);
            r[num][nx][ny] = now;
            if(!check(nx + dx, ny + dy))break;
            nx += dx;
            ny += dy;
        }
        if(!check(x + dx1, y + dy1))break;
        x += dx1;
        y += dy1;
    }
    x += dx2;
    y += dy2;
    if(!check(x + dx2, y + dy2))return;
    while(1){
        ll nx = x, ny = y, now = 0;
        while(1){
            now = max(now - 1, r[num][nx][ny]);
            r[num][nx][ny] = now;
            if(!check(nx + dx, ny + dy))break;
            nx += dx;
            ny += dy;
        }
        if(!check(x + dx2, y + dy2))break;
        x += dx2;
        y += dy2;
    }
}

int main(){
    cin >> h >> w;
    s.resize(h);
    REP(i, 4) v[i].resize(h, vector<ll>(w));
    REP(i, 4) r[i].resize(h, vector<ll>(w));
    REP(i, h)cin >> s[i];
    solve(0, 0, w - 1, 0, -1, 1, 0, 1, 1);
    solve(1, 0, 0, 0, 1, 1, 0, 1, -1);
    solve(2, h - 1, 0, 0, 1, -1, 0, -1, -1);
    solve(3, 0, 0, 1, 0, 0, 1, -1, 1);
    REP(i, h){
        REP(j, w){
            ll now = INF;
            REP(k, 4)now = min(now, v[k][i][j]);
            if(now >= 2){
                REP(k, 4) r[k][i][j] = now;
            }
        }
    }
    solve2(0, 0, w - 1, 0, -1, 1, 0, 1, 1);
    solve2(1, 0, 0, 0, 1, 1, 0, 1, -1);
    solve2(2, h - 1, 0, 0, 1, -1, 0, -1, -1);
    solve2(3, 0, 0, 1, 0, 0, 1, -1, 1);

    REP(i, h){
        REP(j, w){
            ll now = 0;
            REP(k, 4)now = max(now, r[k][i][j]);
            if(now == 0 and s[i][j] == '#'){
                cout <<"No" << endl;
                return 0;
            }
        }
    }
    cout <<"Yes"<<endl;
}
0