Submission #1296806

#TimeUsernameProblemLanguageResultExecution timeMemory
1296806ayazCombo (IOI18_combo)C++20
100 / 100
10 ms512 KiB
#include "combo.h" #include "bits/stdc++.h" #include <cassert> using namespace std; #define isz(x) (int)x.size() string guess_sequence(int n) { string res; vector<char> t(3); if (press("AB") >= 1) { if (press("A") == 1) { res = res + 'A'; t = {'B', 'X', 'Y'}; } else { res = res + 'B'; t = {'A', 'X', 'Y'}; } } else { if (press("X") == 1) { res = res + 'X'; t = {'B', 'A', 'Y'}; } else { res = res + 'Y'; t = {'A', 'X', 'B'}; } } if (n == 1) return res; int cnt = 1; for (int i = 1; i <= n-2; 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); int prev = cnt; if (x == isz(res) + 2) { res = res + t[0]; cnt++; } else if (x == isz(res) + 1) { res = res + t[1]; cnt++; } else if (x == isz(res)) { res = res + t[2]; cnt++; } } 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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