結果
問題 | No.2927 Reverse Polish Equation |
ユーザー | Slephy |
提出日時 | 2024-10-12 16:31:49 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 280 ms / 2,000 ms |
コード長 | 3,802 bytes |
コンパイル時間 | 2,944 ms |
コンパイル使用メモリ | 252,660 KB |
実行使用メモリ | 11,344 KB |
最終ジャッジ日時 | 2024-10-16 00:26:39 |
合計ジャッジ時間 | 8,204 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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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
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 2 ms
5,248 KB |
testcase_04 | AC | 2 ms
5,248 KB |
testcase_05 | AC | 2 ms
5,248 KB |
testcase_06 | AC | 2 ms
5,248 KB |
testcase_07 | AC | 2 ms
5,248 KB |
testcase_08 | AC | 3 ms
5,248 KB |
testcase_09 | AC | 3 ms
5,248 KB |
testcase_10 | AC | 1 ms
5,248 KB |
testcase_11 | AC | 3 ms
5,248 KB |
testcase_12 | AC | 80 ms
5,248 KB |
testcase_13 | AC | 139 ms
6,400 KB |
testcase_14 | AC | 97 ms
5,376 KB |
testcase_15 | AC | 140 ms
6,144 KB |
testcase_16 | AC | 48 ms
5,248 KB |
testcase_17 | AC | 181 ms
7,168 KB |
testcase_18 | AC | 214 ms
8,064 KB |
testcase_19 | AC | 15 ms
5,248 KB |
testcase_20 | AC | 179 ms
7,168 KB |
testcase_21 | AC | 280 ms
9,216 KB |
testcase_22 | AC | 27 ms
5,248 KB |
testcase_23 | AC | 2 ms
5,248 KB |
testcase_24 | AC | 2 ms
5,248 KB |
testcase_25 | AC | 2 ms
5,248 KB |
testcase_26 | AC | 2 ms
5,248 KB |
testcase_27 | AC | 237 ms
8,320 KB |
testcase_28 | AC | 194 ms
7,552 KB |
testcase_29 | AC | 28 ms
5,248 KB |
testcase_30 | AC | 228 ms
8,064 KB |
testcase_31 | AC | 17 ms
5,248 KB |
testcase_32 | AC | 51 ms
5,248 KB |
testcase_33 | AC | 99 ms
5,376 KB |
testcase_34 | AC | 119 ms
5,888 KB |
testcase_35 | AC | 2 ms
5,248 KB |
testcase_36 | AC | 224 ms
8,192 KB |
testcase_37 | AC | 77 ms
5,248 KB |
testcase_38 | AC | 262 ms
8,960 KB |
testcase_39 | AC | 108 ms
5,504 KB |
testcase_40 | AC | 227 ms
8,064 KB |
testcase_41 | AC | 184 ms
7,168 KB |
testcase_42 | AC | 122 ms
11,220 KB |
testcase_43 | AC | 159 ms
11,344 KB |
testcase_44 | AC | 141 ms
11,340 KB |
testcase_45 | AC | 113 ms
10,728 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll = long long; const int INF = (int)1e9 + 1001010; const ll llINF = (long long)4e18 + 22000020; const string endn = "\n"; template <class T> inline auto vector2(size_t i, size_t j, const T &init = T()) { return vector(i, vector<T>(j, init)); } const string ELM_SEP = " ", VEC_SEP = endn; template <class T> istream &operator>>(istream &i, vector<T> &A) { for(auto &I : A) { i >> I; } return i; } template <class T> ostream &operator<<(ostream &o, const vector<T> &A) { int i = A.size(); for(const auto &I : A) { o << I << (--i ? ELM_SEP : ""); } return o; } template <class T> ostream &operator<<(ostream &o, const vector<vector<T>> &A) { int i = A.size(); for(const auto &I : A) { o << I << (--i ? VEC_SEP : ""); } return o; } template <class T> vector<T> &operator++(vector<T> &A, int) { for(auto &I : A) { I++; } return A; } template <class T> vector<T> &operator--(vector<T> &A, int) { for(auto &I : A) { I--; } return A; } template <class T, class U> bool chmax(T &a, const U &b) { return ((a < b) ? (a = b, true) : false); } template <class T, class U> bool chmin(T &a, const U &b) { return ((a > b) ? (a = b, true) : false); } ll floor(ll a, ll b) { if(b < 0) a = -a, b = -b; return (a >= 0) ? a / b : (a + 1) / b - 1; } ll ceil(ll a, ll b) { if(b < 0) a = -a, b = -b; return (a > 0) ? (a - 1) / b + 1 : a / b; } ll bit(unsigned long long val, unsigned long long digit) { return (val >> digit) & 1; } #ifdef DEBUG #include <cpp-dump/dump.hpp> #define dump(...) cpp_dump(__VA_ARGS__) namespace cp = cpp_dump; struct InitCppDump { InitCppDump() { if(!isatty(fileno(stderr))) CPP_DUMP_SET_OPTION(es_style, cpp_dump::es_style_t::no_es); CPP_DUMP_SET_OPTION(log_label_func, cp::log_label::line()); CPP_DUMP_SET_OPTION(max_iteration_count, 30); } } init_cpp_dump; #else #define dump(...) #endif // ==================== ここまでテンプレ ==================== template<class Judgement> ll binary_search_ll(ll ok, ll ng, Judgement judge){ auto need_continue = [&]() -> bool { if(ok > ng) return((__int128_t)ok - (__int128_t)ng > 1); else return ((__int128_t)ng - (__int128_t)ok > 1); }; while(need_continue()){ ll mid = ((__int128_t)ok + (__int128_t)ng) / 2; if(judge(mid)) ok = mid; else ng = mid; } return ok; }; int main(int argc, char *argv[]){ ios::sync_with_stdio(false); cin.tie(nullptr); ll q, y; cin >> q >> y; vector<string> s(q); cin >> s; auto eval = [&](ll x_val) -> ll { vector<ll> a; auto parse_int = [&](string s) -> ll { if(s == "X") return x_val; else return stoll(s); }; for(int i = 0; i < q; i++){ if(s[i] == "+"){ ll v1 = a.back(); a.pop_back(); ll v2 = a.back(); a.pop_back(); a.push_back(v1 + v2); } else if(s[i] == "max"){ ll v1 = a.back(); a.pop_back(); ll v2 = a.back(); a.pop_back(); a.push_back(max(v1, v2)); } else if(s[i] == "min"){ ll v1 = a.back(); a.pop_back(); ll v2 = a.back(); a.pop_back(); a.push_back(min(v1, v2)); } else{ a.push_back(parse_int(s[i])); } } assert(a.size() == 1); return a[0]; }; auto judge = [&](ll x_val) -> bool { dump(x_val); dump(eval(x_val)); return eval(x_val) >= y; }; ll ans = binary_search_ll(1e14, -1, judge); dump(ans); if(eval(ans) == y) cout << ans << endn; else cout << -1 << endn; return 0; }