제출 #482529

#제출 시각아이디문제언어결과실행 시간메모리
482529M_W콤보 (IOI18_combo)C++17
100 / 100
36 ms612 KiB
#include <bits/stdc++.h> #include "combo.h" using namespace std; string guess_sequence(int N){ char init; if(press("AB") >= 1){ if(press("A") == 1) init = 'A'; else init = 'B'; } else{ if(press("X") == 1) init = 'X'; else init = 'Y'; } if(N == 1){ string tmp(1, init); return tmp; } string s(N * 4, init); vector<char> v; if(init != 'A') v.push_back('A'); if(init != 'B') v.push_back('B'); if(init != 'X') v.push_back('X'); if(init != 'Y') v.push_back('Y'); for(int i = 1; i < N - 1; i++){ s[i] = v[0]; s[N + i] = v[0]; s[N * 2 + i] = v[0]; s[N * 3 + i] = v[1]; s[i + 1] = v[0]; s[N + i + 1] = v[1]; s[N * 2 + i + 1] = v[2]; int ret = press(s); int c; if(ret == i + 2) c = 0; else if(ret == i + 1) c = 1; else c = 2; for(int j = 0; j < 4; j++) s[N * j + i] = v[c]; } int c2; s[N * 2 - 1] = s[N * 3 - 1] = s[N * 4 - 1] = init; s[N - 1] = v[0]; if(press(s) == N) c2 = 0; else{ s[N - 1] = v[1]; if(press(s) == N) c2 = 1; else c2 = 2; } s[N - 1] = v[c2]; string ans(N, init); for(int i = 0; i < N; i++) ans[i] = s[i]; return ans; }
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