結果

問題 No.1284 Flip Game
ユーザー SHIJOU
提出日時 2021-01-01 03:22:10
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 26 ms / 2,000 ms
コード長 3,575 bytes
コンパイル時間 2,148 ms
コンパイル使用メモリ 204,384 KB
最終ジャッジ日時 2025-01-17 08:49:54
ジャッジサーバーID
(参考情報)
judge2 / judge2
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
other AC * 28
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 #
プレゼンテーションモードにする

//#define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
#define rep(i, n) for(int i=0; i<n; ++i)
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
using namespace std;
using ll = int64_t;
using ld = long double;
using P = pair<int, int>;
using vs = vector<string>;
using vi = vector<int>;
using vvi = vector<vi>;
template<class T> using PQ = priority_queue<T>;
template<class T> using PQG = priority_queue<T, vector<T>, greater<T> >;
const int INF = 0xccccccc;
const ll LINF = 0xcccccccccccccccLL;
template<typename T1, typename T2>
inline bool chmax(T1 &a, T2 b) {return a < b && (a = b, true);}
template<typename T1, typename T2>
inline bool chmin(T1 &a, T2 b) {return a > b && (a = b, true);}
template<typename T1, typename T2>
istream &operator>>(istream &is, pair<T1, T2> &p) { return is >> p.first >> p.second;}
template<typename T1, typename T2>
ostream &operator<<(ostream &os, const pair<T1, T2> &p) { return os << p.first << ' ' << p.second;}
#undef _GLIBCXX_DEBUG
string to_string(const string &s) {return '"' + s + '"';}
string to_string(const char *s) {return to_string(string(s));}
string to_string(bool b) {return b?"true":"false";}
string to_string(vector<bool> v) {
string res = "{";
for(int i = 0; i < int(v.size()); i++) {
if(i) res += ", ";
res += to_string(v[i]);
}
res += "}";
return res;
}
template<size_t N>
string to_string(bitset<N> v) {
string res;
for(size_t i = 0; i < N; i++) res += char('0' + v[i]);
return res;
}
template<class A, class B>
string to_string(pair<A, B>);
template<class A, class B, class C>
string to_string(tuple<A, B, C>);
template<class A, class B, class C, class D>
string to_string(tuple<A, B, C, D>);
template<class A>
string to_string(A v) {
bool first = true;
string res = "{";
for(const auto &x:v) {
if(!first) res += ", ";
first = false;
res += to_string(x);
}
res += "}";
return res;
}
template<class A, class B>
string to_string(pair<A, B> p) {
return "(" + to_string(p.first) + ", " + to_string(p.second) + ")";
}
template<class A, class B, class C>
string to_string(tuple<A, B, C> t) {
return "(" + to_string(get<0>(t)) + ", " + to_string(get<1>(t)) + ", " + to_string(get<2>(t)) + ")";
}
template<class A, class B, class C, class D>
string to_string(tuple<A, B, C, D> t) {
return "(" + to_string(get<0>(t)) + ", " + to_string(get<1>(t)) + ", " + to_string(get<2>(t)) + ", " + to_string(get<3>(t)) + ")";
}
void debug_out() {cerr << endl;}
template<typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
cerr << ' ' << to_string(H);
debug_out(T...);
}
#ifdef LOCAL
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#else
#define debug(...) 822
#endif
//head
int num(vi &u) {
int res = 0;
for(auto x:u) {
res *= 3;
res += x;
}
return res;
}
vi _num(int num, int n) {
vi res(n);
for(int i = n-1; i >= 0; i--) {
res[i] = num%3;
num /= 3;
}
return res;
}
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
int n;
cin >> n;
int nn = 1;
rep(i, n) nn *= 3;
vvi c(n+1, vi(n));
rep(i, n) rep(j, n) cin >> c[i][j];
vector<vector<ll>> dp(nn, vector<ll>(n+1, LINF));
auto dfs = [&](auto self, int id, int pre)->ll{
ll &res = dp[id][pre];
if(res != LINF) return res;
auto vec = _num(id, n);
bool flg = false;
rep(i, n) if(i != pre and vec[i] != 2) flg = true;
if(!flg) {
return res = 0;
}
rep(i, n) {
if(pre == i or vec[i] == 2) continue;
vec[i]++;
int u = num(vec);
vec[i]--;
chmin(res, self(self, u, i)+c[pre][i]);
}
return res;
};
cout << dfs(dfs, 0, n) << endl;
}
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
0