#1186181 (C++23) No.3710 Universal Tiles

• 問題: No.3710 Universal Tiles
• ユーザー: kuronosu1024
• 提出日時: 2026-09-11 21:48:32
• 言語: C++23 (gcc 15.3.0 + boost 1.92.0 + ACL)
• 結果: AC
• 実行時間: 6 ms / 2,000 ms
• コード長: 3,614 bytes
• コンパイル時間: 2,158 ms
• コンパイル使用メモリ: 341,100 KB
• 実行使用メモリ: 6,528 KB
• 最終ジャッジ日時: 2026-09-11 21:48:40
• 合計ジャッジ時間: 4,212 ms
• ジャッジサーバーID （参考情報）: judge1_1 / judge3_0

ファイルパターン	結果
sample	AC * 3
other	AC * 32

ソースコード

#ifndef INCLUDED_MAIN
#define INCLUDED_MAIN

#include __FILE__

int main(void){
    int n, m; cin >> n >> m;
    array<vector<vector<ll>>,4> pt;
    

    int i, j, k;
    rep(i,4 ) pt[i].resize(n, vector<ll>(m,0));
    rep(i,n){
        rep(j,m){
            string s; cin >> s;
            rep(k,m){
                if(s[k] == '#'){
                    pt[0][i][j] |= (1<<k);
                    pt[1][i][m-k-1] |= (1<<j);
                    pt[2][i][m-j-1] |= (1<<(m-k-1));
                    pt[3][i][k] |= (1<<(m-j-1));
                } 
            }
        }
    }

    ll b = 0;

    ll ans = m*m;
    rep(b, (1<<(2*n))){
        vector<ll> np(m,0);
        rep(i,n){
            int u = (b>>(i*2) & 3);

            rep(j,m){
                rep(k,m){
                    np[j] |= pt[u][i][j];
                }
            }
        }

        ll na = 0;
        rep(j,m){
            na += __builtin_popcount(np[j]);
        }

        if(ans > na) ans = na;
    }

    cout << ans << "\n";
}

#else
#include <bits/stdc++.h>
using namespace std;

using ll = long long;
using ld=  long double;
#define rep(i,n) for(i=0;i<(n);i++)
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()

int randint(int a, int b){
    static mt19937 gen(chrono::steady_clock::now().time_since_epoch().count());
    uniform_int_distribution<int> dist(a,b);
    return dist(gen);
}

namespace nskr{
    template <int id = 0>
    struct modint{
        int v;

        static int& MOD(){
            static int mod = 998244353;
            return mod;
        }

        static int get_mod() { return MOD(); }
        static void set_mod(int m) { MOD() = m; }

        modint() :v(0){}
        modint(long long x) : v( (x>=0 ? x%MOD() : (x%MOD() + MOD()))){}

        long long val() const {return v;}

        modint& operator+=(const modint& x){if((v+=x.v) >= MOD()) v-=MOD(); return *this; }
        modint& operator-=(const modint& x){if((v-=x.v) <  0  ) v+=MOD(); return *this; }
        modint& operator*=(const modint& x){v = (int)(1ll * v * x.v % MOD()); return *this;}
        modint& operator/=(const modint& x){v = (int)(1ll * v * x.inv().val() % MOD()); return *this;}

        modint operator-() const {return modint(-v);}
        modint operator+() const {return *this;}

        modint operator+(const modint& x) const {return modint(*this)+=x;}
        modint operator-(const modint& x) const {return modint(*this)-=x;}
        modint operator*(const modint& x) const {return modint(*this)*=x;}
        modint operator/(const modint& x) const {return modint(*this)/=x;}

        bool operator== (const modint& x) const {return v==x.v;}
        bool operator!= (const modint& x) const {return v!=x.v;}

        friend ostream &operator<<(ostream &os, const modint &p) { return os << p.v; }

        friend istream &operator>>(istream &is, modint &a) {
            int t;
            is >> t;
            a = modint<id>(t);
            return (is);
        }


        modint pow(unsigned long long n) const { 
            modint ret(1), mul(v);
            while(n){
                if(n&1) ret *= mul;
                mul *= mul;
                n >>=1;
            }
            return ret;
        }

        modint inv() const{ //参考：　https://qiita.com/sesame0224/items/f2ac77c367f588c0d29d
            int a = v, b = MOD(), u = 1, w = 0;
            while(b){
                int t = a/b;                 
                swap(a -= t*b, b);
                swap(u -= t*w, w);
            }
            u%=MOD();
            return(u<0?u+MOD():u);
        }


    };

}



#endif