제출 #538254

#제출 시각아이디문제언어결과실행 시간메모리
538254EZiganshin콤보 (IOI18_combo)C++17
100 / 100
27 ms592 KiB
#include "combo.h" #include <bits/stdc++.h> #include <random> using namespace std; const int K = 4; vector<string> k = {"A", "B", "X", "Y"}; string get_string(vector<int> &a) { string res; for (int x: a) { res += k[x]; } return res; } int n; string guess_sequence(int N) { n = N; string s; if (press(k[0] + k[1])) { if (press(k[0])) { s = k[0]; } else { s = k[1]; } } else { if (press(k[2])) { s = k[2]; } else { s = k[3]; } } for (int i = 0; i < 4; i++) { if (k[i] == s) { k.erase(k.begin() + i); } } for (int i = 1; i < n - 1; i++) { int x = press(s + k[0] + k[0] + s + k[0] + k[1] + s + k[0] + k[2] + s + k[1]); if (x == i) { s += k[2]; } else if (x == i + 1) { s += k[1]; } else { s += k[0]; } } if (n > 1) { if (press(s + k[0]) == n) { s += k[0]; } else if (press(s + k[1]) == n) { s += k[1]; } else { s += k[2]; } } return s; }
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