Submission #158117

#TimeUsernameProblemLanguageResultExecution timeMemory
158117johuthaCombo (IOI18_combo)C++14
5 / 100
2 ms264 KiB
#include "combo.h" #include <vector> using namespace std; string guess_sequence(int N) { string curr = ""; string other; if (press("AB")) { if (press("A")) { curr.push_back('A'); other = "BXY"; } else { curr.push_back('B'); other = "AXY"; } } else { if (press("X")) { curr.push_back('X'); other = "ABY"; } else { curr.push_back('Y'); other = "ABX"; } } for (int i = 1; i < N - 1; i++) { string ask = curr + other[0] + curr + other[1] + other[0] + curr + other[1] + other[1] + curr + other[1] + other[2]; int res = press(ask); if (res == i) { curr.push_back(other[2]); } else if (res == i + 1) { curr.push_back(other[0]); } else { curr.push_back(other[1]); } } if (press(curr + other[0] + curr + other[1]) != N) { return curr + other[2]; } else if (press(curr + other[0]) == N) return curr + other[0]; return curr + other[1]; }
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