結果
問題 | No.2927 Reverse Polish Equation |
ユーザー | yasunori |
提出日時 | 2024-10-12 14:42:35 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 681 ms / 2,000 ms |
コード長 | 4,149 bytes |
コンパイル時間 | 2,232 ms |
コンパイル使用メモリ | 207,348 KB |
実行使用メモリ | 11,348 KB |
最終ジャッジ日時 | 2024-10-16 00:22:01 |
合計ジャッジ時間 | 14,741 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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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 | 5 ms
5,248 KB |
testcase_08 | AC | 7 ms
5,248 KB |
testcase_09 | AC | 5 ms
5,248 KB |
testcase_10 | AC | 2 ms
5,248 KB |
testcase_11 | AC | 7 ms
5,248 KB |
testcase_12 | AC | 203 ms
5,248 KB |
testcase_13 | AC | 344 ms
6,144 KB |
testcase_14 | AC | 238 ms
5,376 KB |
testcase_15 | AC | 325 ms
6,144 KB |
testcase_16 | AC | 105 ms
5,248 KB |
testcase_17 | AC | 442 ms
7,168 KB |
testcase_18 | AC | 552 ms
8,064 KB |
testcase_19 | AC | 35 ms
5,248 KB |
testcase_20 | AC | 440 ms
7,168 KB |
testcase_21 | AC | 681 ms
9,088 KB |
testcase_22 | AC | 65 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 | 588 ms
8,320 KB |
testcase_28 | AC | 498 ms
7,552 KB |
testcase_29 | AC | 65 ms
5,248 KB |
testcase_30 | AC | 564 ms
8,192 KB |
testcase_31 | AC | 40 ms
5,248 KB |
testcase_32 | AC | 123 ms
5,248 KB |
testcase_33 | AC | 238 ms
5,376 KB |
testcase_34 | AC | 300 ms
5,888 KB |
testcase_35 | AC | 3 ms
5,248 KB |
testcase_36 | AC | 553 ms
8,192 KB |
testcase_37 | AC | 188 ms
5,248 KB |
testcase_38 | AC | 666 ms
8,960 KB |
testcase_39 | AC | 264 ms
5,504 KB |
testcase_40 | AC | 551 ms
8,064 KB |
testcase_41 | AC | 449 ms
7,168 KB |
testcase_42 | AC | 521 ms
11,220 KB |
testcase_43 | AC | 503 ms
11,344 KB |
testcase_44 | AC | 429 ms
11,348 KB |
testcase_45 | AC | 484 ms
10,740 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; template <typename T> using min_priority_queue = priority_queue<T,vector<T>,greater<T>>; random_device seed_gen; mt19937 engine(seed_gen()); int64_t get_time(){ struct::timespec t; clock_gettime(CLOCK_MONOTONIC, &t); return t.tv_sec * int64_t(1'000'000'000) + t.tv_nsec; } template<typename T> void invec(vector<T> &v){ for(auto &i : v) cin >> i; return; } template<typename T> void outvec(vector<T> &v, string s = " "){ bool b = false; for(auto i : v){ if(b) cout << s; else b = true; cout << i; } cout << endl; return; } template <typename T> bool chmin(T &a, const T& b) { if (a > b) { a = b; // aをbで更新 return true; } return false; } template <typename T> bool chmax(T &a, const T& b) { if (a < b) { a = b; // aをbで更新 return true; } return false; } bool yn(bool b){ if(b) cout << "Yes" << endl; else cout << "No" << endl; return b; } bool check_with_simple_solution; bool calc_time; bool random_input; bool debug_output; int num_of_testcase; using ans_type = int; void input(){ if(num_of_testcase > 1){ } if(random_input){ } else{ } return; } void output_input(){ return; } void pre_solve(){ return; } uint64_t f(vector<string> &S, uint64_t x) { int q = S.size(); vector<uint64_t> A; for(int i = 0; i < q; i++) { int n = A.size(); string s = S[i]; if(s == "max") { uint64_t a = max(A[n-2], A[n-1]); A.pop_back(); A.pop_back(); A.push_back(a); } else if(s == "min") { uint64_t a = min(A[n-2], A[n-1]); A.pop_back(); A.pop_back(); A.push_back(a); } else if(s == "+") { uint64_t a = A[n-2] + A[n-1]; A.pop_back(); A.pop_back(); A.push_back(a); } else if(s == "X") { A.push_back(x); } else { uint64_t a = stoll(s); A.push_back(a); } } return A[0]; } ans_type solve(){ int q; int64_t y; cin >> q >> y; vector<string> S(q); invec(S); int64_t ng = -1; int64_t ok = 1'000'000'000'000'000'000; while(ok - ng > 1) { int64_t mid = (ok + ng) / 2; if(f(S, mid) >= y) ok = mid; else ng = mid; } if(f(S, ok) == y) cout << ok << endl; else cout << -1 << endl; return ans_type(); } ans_type solve_simple(){ return ans_type(); } void output(ans_type ans){ return; } int main(){ ios::sync_with_stdio(false); cin.tie(nullptr); cout << fixed << setprecision(20); check_with_simple_solution = 0; calc_time = 0; random_input = 0; debug_output = 0; num_of_testcase = 1; if(num_of_testcase == 0) cin >> num_of_testcase; pre_solve(); if(check_with_simple_solution){ for(int i = 0; i < num_of_testcase; i++){ if(debug_output) cout << "begin case " << i << " " << string(16, '=') << endl; input(); ans_type ans = solve(); if(debug_output) cout << string(16, '=') << endl; ans_type ans_simple = solve_simple(); if(ans != ans_simple){ cout << "input: " << endl; output_input(); cout << "output: " << endl; output(ans); cout << "expected: " << endl; output(ans_simple); } if(debug_output) cout << "end case " << i << " " << string(16, '=') << endl; } } else{ int64_t time_start = get_time(); for(int i = 0; i < num_of_testcase; i++){ input(); output(solve()); } int64_t time_end = get_time(); if(calc_time){ double time_per_case = (time_end - time_start) / (1e9 * num_of_testcase); cout << fixed << setprecision(3) << time_per_case << "[second/case]" << endl; } } return 0; }