結果

問題 No.2871 Universal Serial Bus
ユーザー wingu
提出日時 2024-09-06 21:55:09
言語 C++23
(gcc 13.3.0 + boost 1.87.0)
結果
WA  
実行時間 -
コード長 3,253 bytes
コンパイル時間 3,103 ms
コンパイル使用メモリ 251,484 KB
実行使用メモリ 6,948 KB
最終ジャッジ日時 2024-09-06 21:55:24
合計ジャッジ時間 3,839 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge3
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 1
other AC * 12 WA * 6
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

#include <bits/stdc++.h>
using namespace std;
#include <atcoder/modint>
using namespace atcoder;
#ifdef DEFINED_ONLY_IN_LOCAL
#include <dump.hpp>
#define dump(...) cpp_dump(__VA_ARGS__)
#else
#undef dump
#define dump(...)
#endif
#define rep1(i, a) for (int i = 0; i < (int)(a); i++)
#define rep2(i, a, b) for (int i = (int)(a); i < (int)(b); i++)
#define rep3(i, a, b, c) for (int i = (int)(a); i < (int)(b); i += (int)(c))
#define overloadRep(a, b, c, d, e, ...) e
#define rep(...) overloadRep(__VA_ARGS__, rep3, rep2, rep1)(__VA_ARGS__)
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
using ll = long long;
using ull = unsigned long long;
const int inf = 1e9;
const ll INF = 1e18;
const int dx[4] = {0, 1, 0, -1};
const int dy[4] = {1, 0, -1, 0};
const int ddx[8] = {1, 0, -1, 0, 1, -1, 1, -1};
const int ddy[8] = {0, 1, 0, -1, 1, -1, -1, 1};
struct cincout {cincout() {ios_base::sync_with_stdio(false); cin.tie(nullptr); cout << fixed << setprecision(15);}} init;
template <class T> inline bool chmax(T& a, T b) {if (a < b) {a = b; return true;} return false;}
template <class T> inline bool chmin(T& a, T b) {if (a > b) {a = b; return true;} return false;}
template <class T1, class T2> istream& operator>>(istream& is, pair<T1, T2>& p) {is >> p.first >> p.second; return is;}
template <class T1, class T2> ostream& operator<<(ostream& os, const pair<T1, T2>& p) {os << p.first << " " << p.second << '\n'; return os;}
template <class T> istream& operator>>(istream& is, vector<T>& v) {for (T& in : v) {is >> in;} return is;}
template <class T> ostream& operator<<(ostream& os, const vector<T>& v) {rep(i, (int)v.size()) {os << v[i] << " \n"[i + 1 == (int)v.size()];} return 
    os;}
template <class T> istream& operator>>(istream& is, vector<vector<T>>& vv) {for (vector<T>& v : vv) {is >> v;} return is;}
template <class T> ostream& operator<<(ostream& os, vector<vector<T>>& vv) {for (vector<T>& v : vv) {os << v;} return os;}
inline bool bit(ll x, int p) {return (x >> p) & 1;}
inline bool out(int ni, int nj, int h, int w) {return (ni < 0 or ni >= h or nj < 0 or nj >= w);}
inline int pc(ll x) {return __builtin_popcountll(x);}
template <class T> inline T max(vector<T> x) {return *max_element(x.begin(), x.end());}
template <class T> inline T min(vector<T> x) {return *min_element(x.begin(), x.end());}
template <class T> inline T sum(vector<T> x) {return reduce(x.begin(), x.end());}
using P = pair<int, int>;
using T = tuple<int, int, int>;
int main() {
    int h, w;
    cin >> h >> w;
    vector<string> s(h), t(h); 
    cin >> s >> t;
    int x = 1, y = 1;
    rep(i, h) rep(j, w) if (s[i][j] == t[i][j]) x = 0;
    vector<string> ns(h, string(w, '.'));
    rep(i, h) rep(j, w) ns[i][j] = s[h - i - 1][j];
    rep(i, h) rep(j, w) if (ns[i][j] == t[i][j]) y = 0;
    if (y == 0 and x == 0) {
        cout << -1 << endl;
    }
    dump(s, ns);
    long double ans = 0, se = 0, two = 1;
    for (int i = 1; i <= 50; i++) {
        double cur = (1 - se) * (1 - 1 / two);
        if (i & 1 and x != 0) {
            ans += cur * i;
            se += cur;
        } else if (i % 2 == 0 and y != 0) {
            ans += cur * i;
            se += cur;
        }
        two *= 2;
    }
    cout << ans << endl;
    return 0;
}
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