제출 #839661

#제출 시각아이디문제언어결과실행 시간메모리
839661sleepntsheep콤보 (IOI18_combo)C++17
100 / 100
29 ms540 KiB
#include "combo.h" #include <cassert> #include <string> #include <vector> using namespace std; string guess_sequence(int N) { string S, opt; if (press("AB")) { if (press("A")) opt="BXY", S="A"; else opt="AXY", S="B"; } else { if (press("X")) opt="ABY", S="X"; else opt="ABX", S="Y"; } if (N == 1) return S; for (int i = 1; i < N - 1; ++i) { string ask = S + opt[0] + opt[0] + S + opt[0] + opt[1] + S + opt[0] + opt[2] + S + opt[1]; int k = press(ask); if (k == i + 2) S += opt[0]; else if (k == i + 1) S += opt[1]; else S += opt[2]; } if (press(S+opt[0])==N) S+=opt[0]; else if (press(S+opt[1])==N) S+=opt[1]; else S+=opt[2]; return S; }
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