제출 #1092769

#제출 시각아이디문제언어결과실행 시간메모리
1092769TrinhKhanhDung콤보 (IOI18_combo)C++14
100 / 100
23 ms1628 KiB
#include <bits/stdc++.h> #define ll long long #define fi first #define se second #define sz(x) (int)x.size() #define ALL(v) v.begin(),v.end() #define MASK(k) (1LL << (k)) #define BIT(x, i) (((x) >> (i)) & 1) #define oo (ll)1e18 #define INF (ll)1e9 #define MOD (ll)(998244353) #include "combo.h" using namespace std; template<class T1, class T2> bool maximize(T1 &a, T2 b){if(a < b){a = b; return true;} return false;} template<class T1, class T2> bool minimize(T1 &a, T2 b){if(a > b){a = b; return true;} return false;} template<class T1, class T2> void add(T1 &a, T2 b){a += b; if(a >= MOD) a -= MOD;} template<class T1, class T2> void sub(T1 &a, T2 b){a -= b; if(a < 0) a += MOD;} template<class T> void cps(T &v){sort(ALL(v)); v.resize(unique(ALL(v)) - v.begin());} //int press(string p){ // cout << p << endl; // int n; cin >> n; // return n; //} string guess_sequence(int N){ const char buttons[] = {'A', 'B', 'X', 'Y'}; string cur = ""; int p = press("AB"); if(p){ if(press("A")) cur.push_back('A'); else cur.push_back('B'); } else{ if(press("X")) cur.push_back('X'); else cur.push_back('Y'); } vector<char> buttonsLeft; for(int i = 0; i < 4; i++) if(cur[0] != buttons[i]){ buttonsLeft.push_back(buttons[i]); } // for(int i = 2; i <= N; i++){ // for(int j = 0; j < 2; j++){ // if(press(cur + buttonsLeft[j]) == i){ // cur.push_back(buttonsLeft[j]); // break; // } // } // if((int)cur.size() < i) cur.push_back(buttonsLeft.back()); // } for(int i = 2; i < N; i++){ string s = cur + buttonsLeft[2] + buttonsLeft[0] + cur + buttonsLeft[2] + buttonsLeft[1] + cur + buttonsLeft[2] + buttonsLeft[2] + cur + buttonsLeft[1]; int coins = press(s); if(coins > i) cur.push_back(buttonsLeft[2]); else if(coins == i) cur.push_back(buttonsLeft[1]); else cur.push_back(buttonsLeft[0]); } if(N > 1) if(press(cur + buttonsLeft[0]) == N) cur.push_back(buttonsLeft[0]); else if(press(cur + buttonsLeft[1]) == N) cur.push_back(buttonsLeft[1]); else cur.push_back(buttonsLeft[2]); return cur; }

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:74:7: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else]
   74 |     if(N > 1)
      |       ^
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