結果

問題 No.1187 皇帝ペンギン
ユーザー hitonanodehitonanode
提出日時 2020-08-22 13:09:36
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 29 ms / 1,000 ms
コード長 4,017 bytes
コンパイル時間 2,365 ms
コンパイル使用メモリ 201,696 KB
実行使用メモリ 25,580 KB
平均クエリ数 19.93
最終ジャッジ日時 2024-07-17 06:07:55
合計ジャッジ時間 6,255 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
(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 26 ms
25,324 KB
testcase_01 AC 24 ms
24,812 KB
testcase_02 AC 24 ms
25,184 KB
testcase_03 AC 24 ms
24,812 KB
testcase_04 AC 26 ms
24,812 KB
testcase_05 AC 23 ms
24,940 KB
testcase_06 AC 24 ms
24,800 KB
testcase_07 AC 24 ms
25,196 KB
testcase_08 AC 29 ms
24,812 KB
testcase_09 AC 28 ms
24,556 KB
testcase_10 AC 23 ms
25,196 KB
testcase_11 AC 28 ms
24,836 KB
testcase_12 AC 24 ms
24,940 KB
testcase_13 AC 24 ms
25,196 KB
testcase_14 AC 24 ms
24,556 KB
testcase_15 AC 24 ms
25,452 KB
testcase_16 AC 24 ms
24,812 KB
testcase_17 AC 24 ms
24,940 KB
testcase_18 AC 24 ms
24,812 KB
testcase_19 AC 23 ms
24,812 KB
testcase_20 AC 24 ms
24,812 KB
testcase_21 AC 24 ms
25,196 KB
testcase_22 AC 24 ms
24,940 KB
testcase_23 AC 24 ms
24,940 KB
testcase_24 AC 24 ms
24,940 KB
testcase_25 AC 25 ms
25,580 KB
testcase_26 AC 24 ms
24,812 KB
testcase_27 AC 23 ms
25,196 KB
testcase_28 AC 23 ms
24,812 KB
testcase_29 AC 25 ms
24,556 KB
testcase_30 AC 24 ms
24,812 KB
testcase_31 AC 24 ms
24,544 KB
testcase_32 AC 24 ms
24,824 KB
testcase_33 AC 24 ms
24,952 KB
testcase_34 AC 23 ms
25,208 KB
testcase_35 AC 27 ms
24,952 KB
testcase_36 AC 24 ms
25,208 KB
testcase_37 AC 26 ms
24,952 KB
testcase_38 AC 25 ms
24,568 KB
testcase_39 AC 24 ms
24,568 KB
testcase_40 AC 24 ms
24,568 KB
testcase_41 AC 25 ms
25,208 KB
testcase_42 AC 24 ms
24,836 KB
testcase_43 AC 24 ms
24,824 KB
testcase_44 AC 25 ms
24,580 KB
testcase_45 AC 25 ms
24,836 KB
testcase_46 AC 24 ms
25,220 KB
testcase_47 AC 24 ms
24,812 KB
testcase_48 AC 24 ms
24,940 KB
testcase_49 AC 24 ms
24,812 KB
testcase_50 AC 24 ms
25,580 KB
testcase_51 AC 24 ms
25,196 KB
testcase_52 AC 24 ms
25,112 KB
testcase_53 AC 24 ms
24,824 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;
using lint = long long;
using pint = pair<int, int>;
using plint = pair<lint, lint>;
#define ALL(x) (x).begin(), (x).end()
#define FOR(i, begin, end) for(int i=(begin),i##_end_=(end);i<i##_end_;i++)
#define IFOR(i, begin, end) for(int i=(end)-1,i##_begin_=(begin);i>=i##_begin_;i--)
#define REP(i, n) FOR(i,0,n)
#define IREP(i, n) IFOR(i,0,n)
template <typename T> void ndarray(vector<T> &vec, int len) { vec.resize(len); }
template <typename T, typename... Args> void ndarray(vector<T> &vec, int len, Args... args) { vec.resize(len); for (auto &v : vec) ndarray(v, args...); }
template <typename V, typename T> void ndfill(V &x, const T &val) { x = val; }
template <typename V, typename T> void ndfill(vector<V> &vec, const T &val) { for (auto &v : vec) ndfill(v, val); }
template <typename T> bool chmax(T &m, const T q) { if (m < q) {m = q; return true;} else return false; }
template <typename T> bool chmin(T &m, const T q) { if (m > q) {m = q; return true;} else return false; }
template <typename T1, typename T2> pair<T1, T2> operator+(const pair<T1, T2> &l, const pair<T1, T2> &r) { return make_pair(l.first + r.first, l.second + r.second); }
template <typename T1, typename T2> pair<T1, T2> operator-(const pair<T1, T2> &l, const pair<T1, T2> &r) { return make_pair(l.first - r.first, l.second - r.second); }
template <typename T> vector<T> srtunq(vector<T> vec) { sort(vec.begin(), vec.end()), vec.erase(unique(vec.begin(), vec.end()), vec.end()); return vec; }
template <typename T> istream &operator>>(istream &is, vector<T> &vec) { for (auto &v : vec) is >> v; return is; }
template <typename T> ostream &operator<<(ostream &os, const vector<T> &vec) { os << '['; for (auto v : vec) os << v << ','; os << ']'; return os; }
#if __cplusplus >= 201703L
template <typename... T> istream &operator>>(istream &is, tuple<T...> &tpl) { std::apply([&is](auto &&... args) { ((is >> args), ...);}, tpl); return is; }
template <typename... T> ostream &operator<<(ostream &os, const tuple<T...> &tpl) { std::apply([&os](auto &&... args) { ((os << args << ','), ...);}, tpl); return os; }
#endif
template <typename T> ostream &operator<<(ostream &os, const deque<T> &vec) { os << "deq["; for (auto v : vec) os << v << ','; os << ']'; return os; }
template <typename T> ostream &operator<<(ostream &os, const set<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; }
template <typename T> ostream &operator<<(ostream &os, const unordered_set<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; }
template <typename T> ostream &operator<<(ostream &os, const multiset<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; }
template <typename T> ostream &operator<<(ostream &os, const unordered_multiset<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; }
template <typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &pa) { os << '(' << pa.first << ',' << pa.second << ')'; return os; }
template <typename TK, typename TV> ostream &operator<<(ostream &os, const map<TK, TV> &mp) { os << '{'; for (auto v : mp) os << v.first << "=>" << v.second << ','; os << '}'; return os; }
template <typename TK, typename TV> ostream &operator<<(ostream &os, const unordered_map<TK, TV> &mp) { os << '{'; for (auto v : mp) os << v.first << "=>" << v.second << ','; os << '}'; return os; }
#ifdef HITONANODE_LOCAL
#define dbg(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ") " << __FILE__ << endl
#else
#define dbg(x)
#endif

bool query(int x)
{
    cout << "? " << x << endl;
    string s;
    cin >> s;
    return s == "safe";
}

void answer(int x)
{
    cout << "! " << x << endl;
    exit(0);
}

int main()
{
    int ok = 0, ng = 1002;
    while (ng - ok > 2)
    {
        int c = (ok + ng) / 2 / 2 * 2;
        bool b = query(c) | query(c + 1);
        (b ? ok : ng) = c;
    }
    if (query(ok + 1)) answer(ok + 1);
    else answer(ok);
}
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