제출 #1311556

#제출 시각아이디문제언어결과실행 시간메모리
1311556aleksandre콤보 (IOI18_combo)C++20
100 / 100
10 ms480 KiB
#include "combo.h" #include <bits/stdc++.h> using namespace std; string guess_sequence(int N) { char k; if (press("AB") > 0) { if (press("B") > 0) k = 'B'; else k = 'A'; } else { if (press("X") > 0) k = 'X'; else k = 'Y'; } vector<char> v; for (char c : {'A','B','X','Y'}) { if (c != k) v.push_back(c); } string S(1, k); for (int i = 1; i < N-1; i++) { string curr = S + v[0] + v[0] + S + v[0] + v[1] + S + v[0] + v[2] + S + v[1]; int res = press(curr); if (res == i + 2) { S += v[0]; } else if (res == i + 1) { S += v[1]; } else { S += v[2]; } } if (N > 1) { string curr = S + v[0] + S+v[1]; if (press(curr)==N) { curr = S+v[0]; if (press(curr)==N) { S = S + v[0]; } else { S = S+v[1]; } } else { S = S+v[2]; } } return S; }
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