제출 #1296778

#제출 시각아이디문제언어결과실행 시간메모리
1296778ayaz콤보 (IOI18_combo)C++20
5 / 100
1 ms400 KiB
#include "combo.h" #include "bits/stdc++.h" using namespace std; #define isz(x) (long long)x.size() string guess_sequence(int n) { string res; vector<char> t(3); if (press("AB")) { if (press("A")) { res += 'A'; t = {'B', 'X', 'Y'}; } else { res += 'B'; t = {'A', 'X', 'Y'}; } } else { if (press("X")) { res += 'X'; t = {'B', 'A', 'Y'}; } else { res += 'Y'; t = {'A', 'X', 'B'}; } } for (int i = 1; i < n-1; i++) { string s = res + t[0] + t[0] + res + t[0] + t[1] + res + t[0] + t[2] + res + t[1]; int x = press(s); if (x == isz(res) + 2) { res += t[0]; } else if (x == isz(res) + 1) { res += t[1]; } else if (x == isz(res)) { res += t[2]; } assert(isz(res) == i + 1); } if (press(res + t[0]) == isz(res) + 1) { res += t[0]; } else if (press(res + t[1]) == isz(res) + 1) { res += t[1]; } else { res += t[2]; } return res; }
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