제출 #630383

#제출 시각아이디문제언어결과실행 시간메모리
630383abeker콤보 (IOI18_combo)C++17
100 / 100
38 ms744 KiB
#include <bits/stdc++.h> #include "combo.h" using namespace std; string guess_sequence(int N) { string all = "ABXY"; int pos = press("AB") ? press("B") : press("Y") + 2; string curr(1, all[pos]); if (N == 1) return curr; string rest = ""; for (int i = 0; i < 4; i++) if (i != pos) rest += all[i]; for (int i = 1; i < N - 1; i++) { string q = curr + rest[1]; for (int j = 0; j < 3; j++) q += curr + rest[0] + rest[j]; curr += rest[i - press(q) + 2]; } int lst = 2; for (int i = 0; i < 2; i++) if (press(curr + rest[i]) == N) { lst = i; break; } return curr + rest[lst]; }
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