제출 #837984

#제출 시각아이디문제언어결과실행 시간메모리
837984iee콤보 (IOI18_combo)C++17
5 / 100
1 ms332 KiB
#include "combo.h" #include <bits/stdc++.h> using namespace std; using V = basic_string<int>; string Dict = "ABXY", orig; int get(V v) { string s; for (int x : v) { if (x == -1) { s += orig; } else { s += Dict[x]; } } return press(s); } std::string guess_sequence(int N) { vector<int> ans(N); ans[0] = (get({0, 1}) ? get({0}) ? 0 : 1 : get({2}) ? 2 : 3); orig = string(1, Dict[ans[0]]); Dict.erase(Dict.begin() + ans[0]); for (int i = 1; i < N - 1; i++) { V k{-1}; for (int j = 1; j < i; j++) { k += ans[j]; } int t = get(k + 0 + 0 + k + 0 + 1 + k + 0 + 2 + k + 1); ans[i] = (t == i ? 2 : t == i + 1 ? 1 : 0); } V k{-1}; for (int j = 1; j < N - 1; j++) { k += ans[j]; } ans[N - 1] = (get(k + 0 + k + 1) == N ? get(k + 0) == N ? 0 : 1 : 2); string S; S.resize(N); S[0] = "ABXY"[ans[0]]; for (int i = 1; i < N; i++) { S[i] = Dict[ans[i]]; } return S; }
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