제출 #643489

#제출 시각아이디문제언어결과실행 시간메모리
643489GaLz콤보 (IOI18_combo)C++14
100 / 100
28 ms552 KiB
#include <bits/stdc++.h> #include "combo.h" using namespace std; typedef long long ll; typedef pair<ll, ll> pll; typedef pair<int, int> pii; typedef vector<int> vi; typedef vector<ll> vll; const ll mod=1e9+7; const ll maxn=2e5+5; #define ok ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); #define fi first #define se second #define pb push_back #define ub upper_bound #define lb lower_bound #define endl '\n' string ans; char c; string guess_sequence(int n) { if(press("XY")) { if(press("X")) c='X'; else c='Y'; } else if(press("A")) { c='A'; } else { c='B'; } ans.pb(c); if(n==1) return ans; for(int i=1; i<=n-2; i++) { if(c=='X') { int cur=press(ans+"YA"+ans+"YB"+ans+"YY"+ans+"A"); if(cur==i+2) ans.pb('Y'); else if(cur==i+1) ans.pb('A'); else ans.pb('B'); } else if(c=='Y') { int cur=press(ans+"XA"+ans+"XB"+ans+"XX"+ans+"A"); if(cur==i+2) ans.pb('X'); else if(cur==i+1) ans.pb('A'); else ans.pb('B'); } else if(c=='A') { int cur=press(ans+"YB"+ans+"YX"+ans+"YY"+ans+"X"); if(cur==i+2) ans.pb('Y'); else if(cur==i+1) ans.pb('X'); else ans.pb('B'); } else { int cur=press(ans+"YA"+ans+"YX"+ans+"YY"+ans+"X"); if(cur==i+2) ans.pb('Y'); else if(cur==i+1) ans.pb('X'); else ans.pb('A'); } } if(c=='X') { if(press(ans+"Y")==n) ans.pb('Y'); else if(press(ans+"A")==n) ans.pb('A'); else ans.pb('B'); } else if(c=='Y') { if(press(ans+"X")==n) ans.pb('X'); else if(press(ans+"A")==n) ans.pb('A'); else ans.pb('B'); } else if(c=='A') { if(press(ans+"Y")==n) ans.pb('Y'); else if(press(ans+"X")==n) ans.pb('X'); else ans.pb('B'); } else { if(press(ans+"Y")==n) ans.pb('Y'); else if(press(ans+"A")==n) ans.pb('A'); else ans.pb('X'); } return ans; }
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